21699c002e
Files correlati : Ricompilazione Demo : [ ] Commento : Riportata la versione 2.1 598 git-svn-id: svn://10.65.10.50/trunk@13909 c028cbd2-c16b-5b4b-a496-9718f37d4682
2292 lines
49 KiB
C++
Executable File
2292 lines
49 KiB
C++
Executable File
#include "../xvaga/incstr.h"
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#include <applicat.h>
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#include <extcdecl.h>
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#include <modaut.h>
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#include <progind.h>
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#include <recset.h>
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#include <relation.h>
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#include <utility.h>
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#include <xml.h>
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#include <statbar.h>
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///////////////////////////////////////////////////////////
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// TTable name converter
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///////////////////////////////////////////////////////////
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class TTable_names : public TObject
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{
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TAssoc_array _names;
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TArray _ids;
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long _filled;
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protected:
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void fill();
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void add_file(int logic, const TString& table);
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public:
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const TString& name(int logic_num);
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int logic_num(const TString& name);
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TTable_names() : _filled(-1) { }
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} _table_names;
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void TTable_names::add_file(int logic, const TString& table)
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{
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TString* id = new TString8;
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id->format("%d", logic);
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_names.add(table, id);
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_ids.add(table, logic);
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}
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void TTable_names::fill()
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{
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if (_filled != prefix().get_codditta())
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{
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FileDes dir;
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CGetFile(LF_DIR, &dir, _nolock, NORDIR);
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const int nfiles = (int)dir.EOD;
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TFilename n;
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for (int logic = LF_USER; logic <= nfiles; logic++)
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{
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const FileDes& fd = prefix().get_filedes(logic);
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n = fd.SysName; n = n.name(); n.upper();
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if (_names.objptr(n) == NULL)
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add_file(logic, n);
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}
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_filled = prefix().get_codditta();
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}
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}
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int TTable_names::logic_num(const TString& n)
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{
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// Non cambiare: n puo' essere temporaneo e pieno di spazi!
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TString80 name = n; name.trim();
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if (isdigit(name[0]))
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{
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int num = atoi(name);
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if (name.ends_with("@"))
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num = -num;
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return num;
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}
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if (name[0] == '%' && name.len() == 4)
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return LF_TABCOM;
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TString* str = (TString*)_names.objptr(name);
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if (str == NULL)
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{
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fill();
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str = (TString*)_names.objptr(name);
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}
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if (str == NULL && name.len() == 3)
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return LF_TAB;
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return str == NULL ? 0 : atoi(*str);
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}
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const TString& TTable_names::name(int logic_num)
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{
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TString* str = (TString*)_ids.objptr(logic_num);
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if (str == NULL)
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{
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fill();
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str = (TString*)_ids.objptr(logic_num);
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}
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return str == NULL ? (const TString&)EMPTY_STRING : *str;
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}
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const TString& logic2table(int logic_num)
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{ return _table_names.name(logic_num); }
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int table2logic(const TString& name)
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{ return _table_names.logic_num(name); }
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///////////////////////////////////////////////////////////
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// Utility
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///////////////////////////////////////////////////////////
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static bool is_numeric(const char* str)
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{
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if (str == NULL || *str == '\0' || *str == '0')
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return false; // Se comincia per zero va preservato!
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if (*str == '-')
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{
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str++;
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if (*str <= ' ')
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return false;
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}
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while (*str)
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{
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if (strchr("0123456789.", *str) == NULL)
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return false;
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str++;
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}
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return true;
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}
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///////////////////////////////////////////////////////////
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// TRecordset
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///////////////////////////////////////////////////////////
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const TString& TRecordset::query_text() const
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{
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return EMPTY_STRING;
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}
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const TToken_string& TRecordset::sheet_head() const
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{
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TToken_string head;
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TToken_string tablefield(32, '.');
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for (unsigned int c = 0; c < columns(); c++)
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{
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const TRecordset_column_info& ci = column_info(c);
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tablefield = ci._name;
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int maxlen = 0;
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FOR_EACH_TOKEN(tablefield, tok)
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{
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if (maxlen == 0)
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head.add(tok);
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else
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head << '\n' << tok;
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const int len = strlen(tok);
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if (len > maxlen)
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maxlen = len;
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}
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head << '@' << max(ci._width, maxlen);
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if (ci._type == _wordfld || ci._type == _intfld || ci._type == _longfld || ci._type == _realfld)
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head << 'R';
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}
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// Creo la stringa temporanea solo ora, altrimenti puo' essere sovrascritta!
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TToken_string& h = get_tmp_string();
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h = head;
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return h;
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}
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bool TRecordset::save_as_html(const char* path)
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{
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TProgind pi(items(), TR("Esportazione in corso..."), true, true);
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ofstream out(path);
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out << "<html>" << endl;
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out << "<body>" << endl;
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TString qry; parsed_text(qry);
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for (int i = qry.find('\n'); i > 0; i = qry.find('\n', i+1))
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qry.insert("<br/>", i+1);
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out << "<p><b>" << qry << "</b></p>" << endl;
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out << "<table border=\"1\">" << endl;
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out << " <thead>";
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for (unsigned int c = 0; c < columns(); c++)
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{
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const TRecordset_column_info& ci = column_info(c);
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TToken_string header(ci._name, '.');
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TString str;
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FOR_EACH_TOKEN(header, tok)
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{
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if (str.not_empty())
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str << "<br/>";
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str << tok;
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}
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out << " <th>" << str << "</th>" << endl;
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}
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out << " </thead>" << endl;
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TString val;
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for (TRecnotype n = 0; n < items(); n++)
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{
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move_to(n);
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pi.addstatus(1);
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if (pi.iscancelled())
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break;
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out << " <tr>" << endl;
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for (unsigned int c = 0; c < columns(); c++)
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{
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const TRecordset_column_info& ci = column_info(c);
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out << " <td";
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if (ci._type == _longfld || ci._type == _realfld)
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out << " align=\"right\"";
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out << ">";
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get(c).as_string(val);
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if (!val.blank())
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{
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val.rtrim();
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out << val;
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}
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out << " </td>" << endl;
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}
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out << " </tr>" << endl;
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}
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out << "</table>" << endl;
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out << "</body>" << endl;
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out << "</html>" << endl;
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return !pi.iscancelled();
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}
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bool TRecordset::save_as_silk(const char* path)
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{
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TProgind pi(items(), TR("Esportazione in corso..."), true, true);
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ofstream out(path);
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out << "ID;PWXL;N;E" << endl;
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// Larghezza colonne
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for (unsigned int h = 0; h < columns(); h++)
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{
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const TRecordset_column_info& ci = column_info(h);
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const int w = max(ci._width, ci._name.len());
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out << "F;W" << (h+1) << ' ' << (h+1) << ' ' << w << endl;
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}
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// Intestazioni colonne
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for (unsigned int c = 0; c < columns(); c++)
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{
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const TRecordset_column_info& ci = column_info(c);
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out << "C;Y1;X" << (c+1) << ";K\"" << ci._name << '"' << endl;
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}
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TString val;
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for (TRecnotype n = 0; n < items(); n++)
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{
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move_to(n);
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pi.addstatus(1);
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if (pi.iscancelled())
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break;
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for (unsigned int c = 0; c < columns(); c++)
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{
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const TRecordset_column_info& ci = column_info(c);
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const bool is_alpha = ci._type == _alfafld || ci._type == _charfld ||
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ci._type == _memofld || ci._type == _datefld;
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out << "C;Y" << (n+2) << ";X" << (c+1) << ";K";
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if (is_alpha) out << '"';
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get(c).as_string(val);
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if (!val.blank())
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{
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val.rtrim();
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val.replace('"', '\'');
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out << val;
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}
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if (is_alpha) out << '"';
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out << endl;
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}
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}
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out << "E" << endl;
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return !pi.iscancelled();
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}
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bool TRecordset::save_as_text(const char* path)
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{
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TProgind pi(items(), TR("Esportazione in corso..."), true, true);
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ofstream out(path);
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TString val;
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for (TRecnotype n = 0; n < items(); n++)
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{
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move_to(n);
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for (unsigned int c = 0; c < columns(); c++)
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{
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if (c > 0)
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out << '\t';
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get(c).as_string(val);
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if (!val.blank())
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{
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val.rtrim();
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out << val;
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}
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}
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out << endl;
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pi.addstatus(1);
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if (pi.iscancelled())
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break;
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}
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return !pi.iscancelled();
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}
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bool TRecordset::save_as_campo(const char* path)
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{
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TProgind pi(items(), TR("Esportazione in corso..."), true, true);
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ofstream out(path);
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out << "[Head]" << endl;
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out << "Version=0";
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for (unsigned int c = 0; c < columns(); c++)
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{
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const TRecordset_column_info& ci = column_info(c);
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if ((c % 8) == 0)
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out << endl << "Fields=";
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else
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out << '|';
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out << ci._name;
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}
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out << endl << endl << "[Data]" << endl;
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TString val;
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for (TRecnotype n = 0; n < items(); n++)
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{
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move_to(n);
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for (unsigned int c = 0; c < columns(); c++)
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{
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if (c > 0)
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out << '|';
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get(c).as_string(val);
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if (!val.blank())
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{
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val.rtrim();
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out << val;
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}
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}
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out << endl;
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pi.addstatus(1);
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if (pi.iscancelled())
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break;
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}
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return !pi.iscancelled();
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}
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bool TRecordset::save_as(const char* path, TRecordsetExportFormat fmt, int mode)
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{
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if (fmt == fmt_unknown)
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{
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TString ext;
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xvt_fsys_parse_pathname(path, NULL, NULL, NULL, ext.get_buffer(), NULL);
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ext.lower();
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if (ext.starts_with("htm"))
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fmt = fmt_html; else
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if (ext == "xls" || ext == "slk")
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fmt = fmt_silk;
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}
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bool ok = false;
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switch (fmt)
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{
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case fmt_html : ok = save_as_html(path); break;
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case fmt_silk : ok = save_as_silk(path); break;
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case fmt_campo: ok = save_as_campo(path); break;
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case fmt_dbf : ok = save_as_dbf(path, mode); break;
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default : ok = save_as_text(path); break;
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}
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return ok;
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}
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int TRecordset::find_column(const char* column_name) const
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{
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int i;
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for (i = columns()-1; i >= 0; i--)
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{
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const TRecordset_column_info& info = column_info(i);
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if (info._name == column_name)
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break;
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}
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return i;
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}
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TVariant& TRecordset::get_tmp_var() const
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{
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static TArray _page; // Variants to be returned by get
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static int _next_var = 0; // Index of next variant to be returned
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if (_next_var >= 32)
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_next_var = 0;
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TVariant* var = (TVariant*)_page.objptr(_next_var);
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if (var == NULL)
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{
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var = new TVariant;
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_page.add(var, _next_var);
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}
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_next_var++;
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return *var;
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}
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const TVariant& TRecordset::get(const char* column_name) const
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{
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if (*column_name == '#')
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return get_var(column_name);
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char* colon = strchr(column_name, ':');
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if (colon != NULL)
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{
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*colon = '\0';
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const int i = find_column(column_name);
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*colon = ':';
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if (i >= 0)
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{
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const TString& str = get(i).as_string();
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TString subfield; subfield << (colon+1) << '=';
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int s = str.find(subfield);
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if (s == 0 || (s > 0 && str[s-1] < ' '))
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{
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static TVariant var;
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s += subfield.len();
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const int e = str.find('\n', s);
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var.set(str.sub(s, e));
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return var;
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}
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}
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}
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else
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{
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const int i = find_column(column_name);
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if (i >= 0)
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return get(i);
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}
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return NULL_VARIANT;
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}
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const TVariant& TRecordset::get_var(const char* name) const
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{
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// Se mi accorgo che posso e voglio accedere ad un campo del recordset padre
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if (_parentset != NULL && strncmp(name, "#PARENT.", 8) == 0)
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{
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return _parentset->get(name+8); // Attenzione! E' giusto usare get() e non get_var()
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}
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const TVariant* var = (const TVariant*)_var.objptr(name);
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return var != NULL ? *var : NULL_VARIANT;
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}
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bool TRecordset::set_var(const char* name, const TVariant& var, bool create)
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{
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bool ok = false;
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TVariant* old = (TVariant*)_var.objptr(name);
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if (old != NULL)
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{
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*old = var;
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ok = true;
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}
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else
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{
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if (create)
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{
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_var.add(name, var);
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_varnames.add(name);
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ok = true;
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}
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}
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if (ok)
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requery();
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return ok;
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}
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bool is_var_separator(char c)
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{
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if (isspace(c))
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return true;
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return strchr("<=>(,", c) != NULL;
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}
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// Cerca le variabili nel testo SQL:
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// Una variabile comincia per # ed e' composta da soli caratteri alfanumerici.
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// Prima del simbolo # e dopo il nome della variabile deve esserci un separatore o blank
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void TRecordset::find_and_reset_vars()
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{
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_var.destroy();
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_varnames.destroy();
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const TString& sql = query_text();
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int diesis = sql.find('#'); // cerco il primo #
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for ( ; diesis > 0; diesis = sql.find('#', diesis+1)) // Cerco tutti i #
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{
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if (is_var_separator(sql[diesis-1])) // Controllo che ci sia un separatore prima del #
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{
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int i = diesis+1;
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for ( ; sql[i] && (isalnum(sql[i]) || sql[i] == '_' || sql[i] == '.' || sql[i] == '#'); i++);
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if (i > diesis+1)
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{
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const TString& name = sql.sub(diesis, i);
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set_var(name, NULL_VARIANT, true);
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}
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}
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}
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}
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void TRecordset::parsed_text(TString& sql) const
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{
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sql = query_text();
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const bool is_isam = sql.starts_with("US");
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const bool is_sql = !is_isam;
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const char* apici = is_isam ? "\"" : "'";
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const bool vars = ((TSQL_recordset*)this)->ask_variables(false);
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if (vars) // Se ci sono variabili faccio le sostituzioni
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{
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const TString_array& names = variables();
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TString s;
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FOR_EACH_ARRAY_ROW(names, i, name) // Scandisco tutte le variabili
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{
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TVariant var = get_var(*name);
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int pos = sql.find(*name);
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for ( ; pos > 0; pos = sql.find(*name, pos+1))
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{
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const TString& after = sql.mid(pos+name->len());
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sql.cut(pos);
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if (var.type() == _datefld)
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s.format("%ld", var.as_date().date2ansi());
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else
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{
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s = var.as_string();
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if (is_sql) // Raddoppia gli apici in SQL
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{
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for (int i = 0; s[i]; i++)
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{
|
|
if (s[i] == '\'')
|
|
s.insert("'", i++);
|
|
}
|
|
}
|
|
}
|
|
if ((var.is_string() && s[0] != *apici && sql.right(1) != apici) || var.is_null())
|
|
{
|
|
s.insert(apici);
|
|
s << apici;
|
|
}
|
|
sql << s << after;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
bool ask_variable(const char* name, TVariant& var)
|
|
{
|
|
TMask m(TR("Richiesta variabile"), 1, 52, 4);
|
|
m.add_static(-1, 0, name, 1, 0);
|
|
m.add_string(101, 0, "", 1, 1, 80, "", 50);
|
|
m.add_button(DLG_OK, 0, "", -12, -1, 10, 2);
|
|
m.add_button(DLG_CANCEL, 0, "", -22, -1, 10, 2);
|
|
m.set(101, var.as_string());
|
|
const bool ok = m.run() == K_ENTER;
|
|
if (ok)
|
|
{
|
|
const TString& str = m.get(101);
|
|
if (is_numeric(str))
|
|
var = real(str);
|
|
else
|
|
var = str;
|
|
}
|
|
return ok;
|
|
}
|
|
|
|
bool TRecordset::ask_variables(bool all)
|
|
{
|
|
const bool ok = variables().items() > 0;
|
|
if (ok) // Se ci sono variabili faccio le sostituzioni
|
|
{
|
|
FOR_EACH_ARRAY_ROW(_varnames, i, name)
|
|
{
|
|
TVariant var = get_var(*name);
|
|
if (var.is_null() || all)
|
|
{
|
|
ask_variable(*name, var);
|
|
if (var.is_null())
|
|
var.set(""); // Mi serve assolutamente un valore!
|
|
set_var(*name, var);
|
|
}
|
|
}
|
|
}
|
|
return ok;
|
|
}
|
|
|
|
TRecordset::TRecordset() : _parentset(NULL)
|
|
{ }
|
|
|
|
///////////////////////////////////////////////////////////
|
|
// Utility
|
|
///////////////////////////////////////////////////////////
|
|
|
|
static void sort_files(TString_array& files)
|
|
{
|
|
TFilename path;
|
|
|
|
// Trasforma i path completi in nomi senza estensione
|
|
FOR_EACH_ARRAY_ROW(files, i, row)
|
|
{
|
|
path = *row;
|
|
path = path.name();
|
|
path.ext("");
|
|
path.lower();
|
|
*row = path;
|
|
}
|
|
files.sort(); // Ordina alfabeticamente
|
|
|
|
// Rimuove i files doppi proveninenti da Campo e Custom
|
|
for (int j = files.last(); j > 0; j--)
|
|
{
|
|
if (files.row(j) == files.row(j-1))
|
|
files.destroy(j);
|
|
}
|
|
}
|
|
|
|
static bool get_xml_attr(const TString& line, const char* attr, TString& value)
|
|
{
|
|
TString80 str; str << ' ' << attr << "=\"";
|
|
const int pos = line.find(str);
|
|
if (pos >= 0)
|
|
{
|
|
const int apicia = line.find('"', pos)+1;
|
|
const int apicic = line.find('"', apicia);
|
|
if (apicic > apicia)
|
|
{
|
|
value = line.sub(apicia, apicic);
|
|
return true;
|
|
}
|
|
}
|
|
value.cut(0);
|
|
return false;
|
|
}
|
|
|
|
static bool get_xml_child(const TString& line, const char* tag, TString& value)
|
|
{
|
|
TString80 str; str << '<' << tag << '>';
|
|
const int pos = line.find(str);
|
|
if (pos >= 0)
|
|
{
|
|
const int apicia = line.find('>', pos)+1;
|
|
const int apicic = line.find('<', apicia);
|
|
if (apicic > apicia)
|
|
{
|
|
value = line.sub(apicia, apicic);
|
|
return true;
|
|
}
|
|
}
|
|
value.cut(0);
|
|
return false;
|
|
}
|
|
|
|
bool list_custom_files(const char* ext, const char* classe, TString_array& files)
|
|
{
|
|
TString_array lista;
|
|
TFilename path;
|
|
|
|
|
|
{
|
|
TWait_cursor hourglass;
|
|
|
|
TString_array files;
|
|
// Leggo i files in custom
|
|
if (main_app().has_module(RSAUT))
|
|
{
|
|
TFilename custom = firm2dir(-1);
|
|
custom.add("custom");
|
|
if (!custom.exist())
|
|
xvt_fsys_mkdir(custom);
|
|
|
|
path = custom;
|
|
path.add("*");
|
|
path.ext(ext);
|
|
|
|
list_files(path, lista);
|
|
}
|
|
path = "*"; path.ext(ext); // Leggo i files in campo
|
|
list_files(path, lista);
|
|
sort_files(lista); // Ordino i files e rimuovo i doppioni
|
|
|
|
|
|
TString8 acqua;
|
|
TString stringona, desc;
|
|
|
|
FOR_EACH_ARRAY_ROW(lista, i, row)
|
|
{
|
|
path = *row; path.ext(ext);
|
|
bool ok = path.custom_path();
|
|
if (ok)
|
|
{
|
|
TScanner scan(path);
|
|
stringona.cut(0);
|
|
for (int i = 0; i < 3 && scan.good(); i++) // Leggo solo le prime righe
|
|
stringona << scan.line();
|
|
|
|
get_xml_attr(stringona, "class", acqua);
|
|
if (classe && *classe)
|
|
ok = acqua == classe;
|
|
|
|
|
|
if (ok)
|
|
{
|
|
get_xml_child(stringona, "description", desc);
|
|
TToken_string* riga = new TToken_string;
|
|
riga->add(*row);
|
|
riga->add(acqua);
|
|
riga->add(desc);
|
|
files.add(riga);
|
|
|
|
}
|
|
}
|
|
}
|
|
|
|
return !files.empty();
|
|
}
|
|
|
|
bool select_custom_file(TFilename& path, const char* ext, const char* library)
|
|
{
|
|
TArray_sheet sheet(-1, -1, 80, 20, TR("Selezione"), HR("Nome@8|Classe|Descrizione@50|Custom"));
|
|
TString_array& files = sheet.rows_array();
|
|
|
|
bool ok = list_custom_files(ext, library, files);
|
|
|
|
if (ok)
|
|
{
|
|
TFilename name;
|
|
FOR_EACH_ARRAY_ROW(files, i, row)
|
|
{
|
|
name = row->get(0);
|
|
name.ext(ext);
|
|
name.custom_path();
|
|
if (name.find("custom") > 0)
|
|
row->add("X");
|
|
}
|
|
|
|
ok = sheet.run() == K_ENTER;
|
|
if (ok)
|
|
{
|
|
path = sheet.row(-1).get(0);
|
|
path.ext(ext);
|
|
ok = path.custom_path();
|
|
}
|
|
}
|
|
|
|
return ok;
|
|
}
|
|
|
|
|
|
///////////////////////////////////////////////////////////
|
|
// Private interface
|
|
///////////////////////////////////////////////////////////
|
|
|
|
#ifdef SQLITE3
|
|
#include "../sqlite3/sqlite3.h"
|
|
#else
|
|
#include "../sqlite/sqlite.h"
|
|
#endif
|
|
|
|
class TSQLite : public TObject
|
|
{
|
|
#ifdef SQLITE3
|
|
sqlite3* _handle;
|
|
#else
|
|
sqlite* _handle;
|
|
#endif
|
|
TFilename _currdb;
|
|
|
|
protected:
|
|
TVariant& get_sql_value(const TRectype& curr, const RecFieldDes& fd, TVariant& tmp) const;
|
|
|
|
void build_curr_path(TFilename& name) const;
|
|
void test_path();
|
|
|
|
#ifdef SQLITE3
|
|
bool bind_record(const TRectype& rec, const RecDes& rd, sqlite3_stmt* pStatement) const;
|
|
#else
|
|
bool esporta(const TRectype& rec, ostream& sql) const;
|
|
#endif
|
|
bool create_dbf_times();
|
|
long get_dbf_time(const TString& table);
|
|
bool set_dbf_time(const TString& table, long last);
|
|
bool import(int logicnum);
|
|
|
|
public:
|
|
#ifdef SQLITE3
|
|
sqlite3* open(const char* fname = NULL);
|
|
bool exec(const char* sql, sqlite3_callback callback = NULL, void* jolly = NULL, bool show_error = true);
|
|
#else
|
|
sqlite* open(const char* fname = NULL);
|
|
bool exec(const char* sql, sqlite_callback callback = NULL, void* jolly = NULL, bool show_error = true);
|
|
#endif
|
|
void close();
|
|
|
|
bool exists(const char* table);
|
|
bool parse_select_from(const char* szSql);
|
|
|
|
TSQLite();
|
|
virtual ~TSQLite();
|
|
} _TheDataBase;
|
|
|
|
void get_sql_directory(TFilename& name)
|
|
{
|
|
name = firm2dir(-1);
|
|
name.add("sql");
|
|
if (!name.exist())
|
|
make_dir(name);
|
|
}
|
|
|
|
void TSQLite::build_curr_path(TFilename& name) const
|
|
{
|
|
TString16 firm; firm.format("%05ldA.sql", prefix().get_codditta());
|
|
get_sql_directory(name);
|
|
name.add(firm);
|
|
}
|
|
|
|
#ifdef SQLITE3
|
|
|
|
sqlite3* TSQLite::open(const char* fname)
|
|
{
|
|
close();
|
|
_currdb = fname;
|
|
int err = sqlite3_open(_currdb, &_handle);
|
|
|
|
if (err = SQLITE_CORRUPT)
|
|
{
|
|
close();
|
|
xvt_fsys_removefile(_currdb);
|
|
err = sqlite3_open(_currdb, &_handle);
|
|
}
|
|
|
|
if (err == SQLITE_OK)
|
|
{
|
|
create_dbf_times();
|
|
}
|
|
else
|
|
{
|
|
const char* errmsg = sqlite3_errmsg(_handle); // Stringa di sitema: inutile sqlite3_free(errmsg)
|
|
error_box(errmsg);
|
|
}
|
|
|
|
return _handle;
|
|
}
|
|
|
|
#else
|
|
|
|
sqlite* TSQLite::open(const char* fname)
|
|
{
|
|
close();
|
|
_currdb = fname;
|
|
char* errmsg = NULL;
|
|
_handle = sqlite_open(_currdb, 0, &errmsg);
|
|
if (errmsg != NULL)
|
|
{
|
|
error_box(errmsg);
|
|
sqlite_freemem(errmsg);
|
|
}
|
|
|
|
create_dbf_times();
|
|
|
|
return _handle;
|
|
}
|
|
#endif
|
|
|
|
void TSQLite::test_path()
|
|
{
|
|
TFilename n;
|
|
build_curr_path(n);
|
|
if (n != _currdb)
|
|
open(n);
|
|
}
|
|
|
|
#ifdef SQLITE3
|
|
bool TSQLite::exec(const char* sql, sqlite3_callback callback, void* jolly, bool show_error)
|
|
#else
|
|
bool TSQLite::exec(const char* sql, sqlite_callback callback, void* jolly, bool show_error)
|
|
#endif
|
|
{
|
|
if (_handle == NULL)
|
|
test_path();
|
|
|
|
TWait_cursor hourglass;
|
|
char* errmsg = NULL;
|
|
#ifdef SQLITE3
|
|
const int rc = sqlite3_exec(_handle, sql, callback, jolly, &errmsg);
|
|
#else
|
|
const int rc = sqlite_exec(_handle, sql, callback, jolly, &errmsg);
|
|
#endif
|
|
if (errmsg != NULL)
|
|
{
|
|
if (show_error)
|
|
{
|
|
TString msg;
|
|
msg << sql;
|
|
msg.cut(128);
|
|
msg << '\n' << errmsg;
|
|
error_box(msg);
|
|
}
|
|
#ifdef SQLITE3
|
|
sqlite3_free(errmsg);
|
|
#else
|
|
sqlite_freemem(errmsg);
|
|
#endif
|
|
}
|
|
return rc == SQLITE_OK;
|
|
}
|
|
|
|
void TSQLite::close()
|
|
{
|
|
if (_handle != NULL)
|
|
{
|
|
#ifdef SQLITE3
|
|
sqlite3_close(_handle);
|
|
#else
|
|
sqlite_close(_handle);
|
|
#endif
|
|
_handle = NULL;
|
|
}
|
|
}
|
|
|
|
const char* const DBF_TIMES_TABLE = "DBF_TIMES";
|
|
|
|
bool TSQLite::create_dbf_times()
|
|
{
|
|
bool ok = exists(DBF_TIMES_TABLE);
|
|
if (!ok)
|
|
{
|
|
TString sql;
|
|
sql << "CREATE TABLE " << DBF_TIMES_TABLE << " (name TEXT,time NUMERIC);\n"
|
|
<< "CREATE UNIQUE INDEX " << DBF_TIMES_TABLE << "_1 ON " << DBF_TIMES_TABLE << " (name);";
|
|
ok = exec(sql);
|
|
}
|
|
return ok;
|
|
}
|
|
|
|
bool TSQLite::set_dbf_time(const TString& table, long last)
|
|
{
|
|
TString sql;
|
|
sql << "REPLACE INTO " << DBF_TIMES_TABLE << " VALUES("
|
|
<< '\'' << table << "','" << last << "');";
|
|
return exec(sql);
|
|
}
|
|
|
|
static int dbf_time_callback(void* jolly, int argc, char** argv, char** columns)
|
|
{
|
|
long& last = *(long*)jolly;
|
|
last = atol(argv[0]);
|
|
return SQLITE_OK;
|
|
}
|
|
|
|
long TSQLite::get_dbf_time(const TString& table)
|
|
{
|
|
TString sql;
|
|
sql << "SELECT time FROM " << DBF_TIMES_TABLE << " WHERE name='" << table << "';";
|
|
long last = 0;
|
|
exec(sql, dbf_time_callback, &last);
|
|
return last;
|
|
}
|
|
|
|
TVariant& TSQLite::get_sql_value(const TRectype& curr, const RecFieldDes& fd, TVariant& tmp) const
|
|
{
|
|
switch (fd.TypeF)
|
|
{
|
|
case _realfld : tmp.set(curr.get_real(fd.Name)); break;
|
|
case _intfld :
|
|
case _longfld :
|
|
case _wordfld :
|
|
case _intzerofld :
|
|
case _longzerofld: tmp.set(curr.get_long(fd.Name)); break;
|
|
case _datefld :
|
|
{
|
|
const TDate date = curr.get_date(fd.Name);
|
|
tmp.set(date.date2ansi());
|
|
}
|
|
break;
|
|
case _boolfld : tmp.set(curr.get_bool(fd.Name)); break;
|
|
case _memofld:
|
|
{
|
|
TString memo = curr.get(fd.Name);
|
|
memo.replace('\n', char(0xB6)); // Simbolo di paragrafo
|
|
tmp.set(memo);
|
|
}
|
|
break;
|
|
default : tmp.set(curr.get(fd.Name)); break;
|
|
}
|
|
return tmp;
|
|
}
|
|
|
|
static int exists_callback(void *jolly, int argc, char **argv, char **azColName)
|
|
{
|
|
bool& yes = *(bool*)jolly;
|
|
yes = argc > 0;
|
|
return SQLITE_OK;
|
|
}
|
|
|
|
bool TSQLite::exists(const char* table)
|
|
{
|
|
TString sql;
|
|
sql << "SELECT name FROM sqlite_master WHERE (type='table')AND(name='" << table << "');";
|
|
bool yes = false;
|
|
exec(sql, exists_callback, &yes, false);
|
|
return yes;
|
|
}
|
|
|
|
#ifdef SQLITE3
|
|
bool TSQLite::bind_record(const TRectype& rec, const RecDes& rd, sqlite3_stmt* pStatement) const
|
|
{
|
|
int rc = SQLITE_OK;
|
|
TVariant tmp;
|
|
for (int i = 0; i < rd.NFields && rc==SQLITE_OK ; i++)
|
|
{
|
|
get_sql_value(rec, rd.Fd[i], tmp);
|
|
const TString& val = tmp.as_string();
|
|
rc = sqlite3_bind_text(pStatement, i+1, val, val.len(), SQLITE_TRANSIENT);
|
|
}
|
|
return rc == SQLITE_OK;
|
|
}
|
|
|
|
bool TSQLite::import(int logicnum)
|
|
{
|
|
const TString& table = logic2table(logicnum);
|
|
|
|
long last = get_dbf_time(table);
|
|
if (logicnum >= LF_USER) // Dummy test
|
|
{
|
|
TLocalisamfile file(logicnum);
|
|
if (!file.is_changed_since(last))
|
|
return true;
|
|
}
|
|
|
|
const RecDes& rd = prefix().get_recdes(logicnum);
|
|
|
|
TString sql;
|
|
if (exists(table))
|
|
{
|
|
// Drop old table
|
|
sql.cut(0) << "DROP TABLE "<< table << ';';
|
|
exec(sql);
|
|
}
|
|
|
|
// Create new table
|
|
sql.cut(0) << "CREATE TABLE "<< table << "\n(";
|
|
int i;
|
|
for (i = 0; i < rd.NFields; i++)
|
|
{
|
|
if (i > 0) sql << ',';
|
|
sql << rd.Fd[i].Name << ' ';
|
|
switch (rd.Fd[i].TypeF)
|
|
{
|
|
case _alfafld: sql << "TEXT"; break;
|
|
case _memofld: sql << "BLOB"; break;
|
|
case _datefld: sql << "DATE"; break;
|
|
default : sql << "NUMERIC"; break;
|
|
}
|
|
}
|
|
sql << ");";
|
|
if (!exec(sql))
|
|
return false;
|
|
|
|
TRelation rel(logicnum);
|
|
TCursor cur(&rel);
|
|
const TRecnotype items = cur.items();
|
|
if (items > 0)
|
|
{
|
|
cur.freeze();
|
|
|
|
TString msg;
|
|
msg << TR("Importazione tabella") << ' ' << table;
|
|
msg << ": " << items << ' ' << TR("righe");
|
|
TProgind pi(items, msg, true, true);
|
|
|
|
exec("BEGIN"); // Inizio transazione
|
|
|
|
// Creo il comando INSERT INTO table VALUES(?,?,?,?,?,?);
|
|
sql.cut(0) << "INSERT INTO " << table << " VALUES(";
|
|
for (i = 0; i < rd.NFields; i++)
|
|
{
|
|
if (i != 0) sql << ',';
|
|
sql << '?';
|
|
}
|
|
sql << ");";
|
|
|
|
sqlite3_stmt* pStatement = NULL;
|
|
int rc = sqlite3_prepare(_handle, sql, sql.len(), &pStatement, NULL);
|
|
|
|
const TRectype& curr = rel.curr();
|
|
for (cur = 0; cur.pos() < items; ++cur)
|
|
{
|
|
pi.addstatus(1);
|
|
if (pi.iscancelled())
|
|
break;
|
|
bind_record(curr, rd, pStatement); // Sostituisce i ? coi veri valori
|
|
rc = sqlite3_step(pStatement); // Ritorna sempre 101 (SQLITE_DONE)
|
|
rc = sqlite3_reset(pStatement); // Azzero lo statement per ricominciare
|
|
}
|
|
rc = sqlite3_finalize(pStatement);
|
|
exec("COMMIT"); // Fine transazione
|
|
}
|
|
|
|
// Creo gli indici DOPO l'importazione per maggiore velocita'
|
|
TProgind pi(rd.NKeys, TR("Creazione indici"), false, true);
|
|
for (int index = 0; index < rd.NKeys; index++)
|
|
{
|
|
pi.addstatus(1);
|
|
sql.cut(0) << "CREATE INDEX " << table << '_' << (index+1) << " ON "<< table << "\n(";
|
|
const KeyDes& kd = rd.Ky[index];
|
|
for (int k = 0; k < kd.NkFields; k++)
|
|
{
|
|
if (k > 0) sql << ',';
|
|
const int ndx = kd.FieldSeq[k] % MaxFields;
|
|
sql << rd.Fd[ndx].Name;
|
|
}
|
|
sql << ");";
|
|
exec(sql);
|
|
}
|
|
|
|
set_dbf_time(table, last); // Aggiorna ora di ultima modifica
|
|
|
|
return true;
|
|
}
|
|
|
|
#else
|
|
|
|
bool TSQLite::esporta(const TRectype& rec, ostream& sql) const
|
|
{
|
|
const RecDes& rd = *rec.rec_des();
|
|
TVariant tmp;
|
|
for (int i = 0; i < rd.NFields; i++)
|
|
{
|
|
if (i > 0) sql << '\t';
|
|
get_sql_value(rec, rd.Fd[i], tmp);
|
|
sql << tmp.as_string();
|
|
}
|
|
sql << '\n';
|
|
return true;
|
|
}
|
|
|
|
bool TSQLite::import(int logicnum)
|
|
{
|
|
const TString& table = logic2table(logicnum);
|
|
|
|
long last = get_dbf_time(table);
|
|
if (logicnum >= LF_USER) // Dummy test
|
|
{
|
|
TLocalisamfile file(logicnum);
|
|
if (!file.is_changed_since(last))
|
|
return true;
|
|
}
|
|
|
|
const RecDes& rd = prefix().get_recdes(logicnum);
|
|
|
|
TString sql;
|
|
if (exists(table))
|
|
{
|
|
// Drop old table
|
|
sql.cut(0) << "DROP TABLE "<< table << ';';
|
|
exec(sql);
|
|
}
|
|
|
|
// Create new table
|
|
sql.cut(0) << "CREATE TABLE "<< table << "\n(";
|
|
int i;
|
|
for (i = 0; i < rd.NFields; i++)
|
|
{
|
|
if (i > 0) sql << ',';
|
|
sql << rd.Fd[i].Name << ' ';
|
|
switch (rd.Fd[i].TypeF)
|
|
{
|
|
case _alfafld: sql << "TEXT"; break;
|
|
case _memofld: sql << "BLOB"; break;
|
|
case _datefld: sql << "DATE"; break;
|
|
default : sql << "NUMERIC"; break;
|
|
}
|
|
}
|
|
sql << ");";
|
|
if (!exec(sql))
|
|
return false;
|
|
|
|
// Creazione indici
|
|
for (int index = 0; index < rd.NKeys; index++)
|
|
{
|
|
sql.cut(0) << "CREATE INDEX " << table << '_' << (index+1) << " ON "<< table << "\n(";
|
|
const KeyDes& kd = rd.Ky[index];
|
|
for (int k = 0; k < kd.NkFields; k++)
|
|
{
|
|
if (k > 0) sql << ',';
|
|
const int ndx = kd.FieldSeq[k] % MaxFields;
|
|
sql << rd.Fd[ndx].Name;
|
|
}
|
|
sql << ");";
|
|
exec(sql);
|
|
}
|
|
|
|
TRelation rel(logicnum);
|
|
TCursor cur(&rel);
|
|
const TRecnotype items = cur.items();
|
|
|
|
if (items > 0)
|
|
{
|
|
cur.freeze();
|
|
const TRectype& curr = rel.curr();
|
|
|
|
TString msg;
|
|
msg << TR("Esportazione tabella") << ' ' << table;
|
|
TPerformance_profiler prof(msg);
|
|
|
|
msg << ": " << items << ' ' << TR("righe");
|
|
TProgind pi(items, msg, true, true);
|
|
|
|
TFilename tmp; tmp.tempdir(); tmp.add("sql.txt");
|
|
ofstream txt(tmp, ios::binary);
|
|
|
|
for (cur = 0; cur.pos() < items; ++cur)
|
|
{
|
|
esporta(curr, txt);
|
|
pi.addstatus(1);
|
|
if (pi.iscancelled())
|
|
break;
|
|
}
|
|
|
|
txt.close();
|
|
|
|
msg << '\n' << TR("Importazione tabella") << ' ' << table;
|
|
msg << ": " << items << ' ' << TR("righe");
|
|
pi.set_text(msg);
|
|
|
|
sql.cut(0) << "COPY " << table << " FROM '" << tmp << "';";
|
|
if (exec(sql))
|
|
set_dbf_time(table, last); // Aggiorna ora di ultima modifica
|
|
|
|
::remove(tmp);
|
|
}
|
|
|
|
return true;
|
|
}
|
|
#endif
|
|
|
|
bool TSQLite::parse_select_from(const char* szSql)
|
|
{
|
|
test_path();
|
|
|
|
TString sql(szSql);
|
|
sql.trim(); sql.upper();
|
|
if (!sql.starts_with("SELECT"))
|
|
return false;
|
|
|
|
const int from = sql.find("FROM");
|
|
if (from < 0)
|
|
return false;
|
|
|
|
const int where = sql.find("WHERE", from);
|
|
TToken_string tables(sql.sub(from+5, where), ',');
|
|
TString table;
|
|
FOR_EACH_TOKEN(tables, tok)
|
|
{
|
|
table = tok;
|
|
table.trim();
|
|
for (int i = 0; table[i]; i++)
|
|
{
|
|
if (table[i] <= ' ' || table[i] == ';')
|
|
{ table.cut(i); break; }
|
|
}
|
|
const int logicnum = table2logic(table);
|
|
if (logicnum > 0)
|
|
import(logicnum);
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
TSQLite::TSQLite() : _handle(NULL)
|
|
{ }
|
|
|
|
TSQLite::~TSQLite()
|
|
{
|
|
close();
|
|
}
|
|
|
|
///////////////////////////////////////////////////////////
|
|
// TSQL_recordset
|
|
///////////////////////////////////////////////////////////
|
|
|
|
void TSQL_recordset::reset()
|
|
{
|
|
_items = 0;
|
|
_first_row = 0;
|
|
_current_row = -1;
|
|
_pagesize = 512;
|
|
_page.destroy();
|
|
_column.destroy();
|
|
}
|
|
|
|
int TSQL_recordset::on_get_items(int argc, char** values, char** columns)
|
|
{
|
|
if (_column.items() == 0)
|
|
{
|
|
for (int i = 0; i < argc; i++)
|
|
{
|
|
TRecordset_column_info* info = new TRecordset_column_info;
|
|
info->_name = columns[i];
|
|
info->_width = 1;
|
|
info->_type = _alfafld;
|
|
|
|
const char* fldtype = columns[argc+i];
|
|
if (fldtype != NULL)
|
|
{
|
|
if (xvt_str_compare_ignoring_case(fldtype, "DATE") == 0)
|
|
{
|
|
info->_type = _datefld;
|
|
info->_width = 10;
|
|
} else
|
|
if (xvt_str_compare_ignoring_case(fldtype, "NUMERIC") == 0)
|
|
{
|
|
info->_type = _realfld;
|
|
} else
|
|
if (xvt_str_compare_ignoring_case(fldtype, "BLOB") == 0)
|
|
{
|
|
info->_type = _memofld;
|
|
info->_width = 50;
|
|
}
|
|
}
|
|
_column.add(info);
|
|
}
|
|
}
|
|
if (_items < _pagesize)
|
|
{
|
|
for (int i = 0; i < argc; i++) if (values[i] && *values[i])
|
|
{
|
|
TRecordset_column_info& info = (TRecordset_column_info&)_column[i];
|
|
if (info._type == _alfafld || info._type == _realfld)
|
|
{
|
|
const int len = strlen(values[i]);
|
|
if (len > info._width)
|
|
info._width = len;
|
|
}
|
|
}
|
|
}
|
|
|
|
_items++;
|
|
return SQLITE_OK;
|
|
}
|
|
|
|
static int query_get_items(void* jolly, int argc, char** values, char** columns)
|
|
{
|
|
TSQL_recordset* q = (TSQL_recordset*)jolly;
|
|
return q->on_get_items(argc, values, columns);
|
|
}
|
|
|
|
void TSQL_recordset::requery()
|
|
{
|
|
_items = 0;
|
|
_page.destroy();
|
|
}
|
|
|
|
TRecnotype TSQL_recordset::items() const
|
|
{
|
|
if (_items == 0)
|
|
{
|
|
TString sql; parsed_text(sql);
|
|
TPerformance_profiler prof("SQL query");
|
|
_TheDataBase.exec("PRAGMA show_datatypes = ON;", NULL, NULL);
|
|
_TheDataBase.exec(sql, query_get_items, (TSQL_recordset*)this);
|
|
_TheDataBase.exec("PRAGMA show_datatypes = OFF;", NULL, NULL);
|
|
}
|
|
return _items;
|
|
}
|
|
|
|
unsigned int TSQL_recordset::columns() const
|
|
{
|
|
if (_column.items() == 0)
|
|
items();
|
|
return _column.items();
|
|
}
|
|
|
|
const TRecordset_column_info& TSQL_recordset::column_info(unsigned int c) const
|
|
{
|
|
return (const TRecordset_column_info&)_column[c];
|
|
}
|
|
|
|
// Funzione chiamata per riempire la pagina corrente delle righe della query
|
|
int TSQL_recordset::on_get_rows(int argc, char** values)
|
|
{
|
|
TArray* a = new TArray;
|
|
for (int c = 0; c < argc; c++)
|
|
{
|
|
TVariant* var = new TVariant;
|
|
switch (column_info(c)._type)
|
|
{
|
|
case _alfafld:
|
|
var->set(values[c]);
|
|
break;
|
|
case _memofld:
|
|
if (values[c])
|
|
{
|
|
TFixed_string memo(values[c]);
|
|
memo.replace(char(0xB6), '\n');
|
|
var->set(memo);
|
|
}
|
|
break;
|
|
case _datefld:
|
|
var->set(TDate(values[c]));
|
|
break;
|
|
default:
|
|
var->set(real(values[c]));
|
|
break;
|
|
}
|
|
a->add(var, c);
|
|
}
|
|
_page.add(a);
|
|
return SQLITE_OK;
|
|
}
|
|
|
|
static int query_get_rows(void* jolly, int argc, char** values, char** /*columns*/)
|
|
{
|
|
TSQL_recordset* rs = (TSQL_recordset*)jolly;
|
|
return rs->on_get_rows(argc, values);
|
|
}
|
|
|
|
bool TSQL_recordset::move_to(TRecnotype n)
|
|
{
|
|
_current_row = n;
|
|
if (n < 0 || n >= items())
|
|
{
|
|
_page.destroy(); // Forza rilettura la prossiva volta
|
|
_first_row = 0;
|
|
return false;
|
|
}
|
|
|
|
if (n < _first_row || n >= _first_row+_page.items())
|
|
{
|
|
TString sql; parsed_text(sql);
|
|
if (sql.find("LIMIT ") < 0)
|
|
{
|
|
const int semicolon = sql.rfind(';');
|
|
if (semicolon >= 0)
|
|
sql.cut(semicolon);
|
|
sql.trim();
|
|
_page.destroy();
|
|
if (n >= _pagesize)
|
|
_first_row = n-32; // Prendo qualche riga dalla pagina precedente, per velocizzare il pagina su
|
|
else
|
|
_first_row = n;
|
|
sql << "\nLIMIT " << _pagesize << " OFFSET " << _first_row << ';';
|
|
}
|
|
_TheDataBase.exec(sql, query_get_rows, this);
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
const TArray* TSQL_recordset::row(TRecnotype n)
|
|
{
|
|
const TArray* a = NULL;
|
|
if (move_to(n))
|
|
a = (const TArray*)_page.objptr(n-_first_row);
|
|
return a;
|
|
}
|
|
|
|
const TVariant& TSQL_recordset::get(unsigned int c) const
|
|
{
|
|
const TArray* a = (const TArray*)_page.objptr(_current_row-_first_row);
|
|
if (a != NULL)
|
|
{
|
|
const TVariant* s = (const TVariant*)a->objptr(c);
|
|
if (s != NULL)
|
|
return *s;
|
|
}
|
|
return NULL_VARIANT;
|
|
}
|
|
|
|
bool TRecordset::save_as_dbf(const char* table, int mode)
|
|
{
|
|
char volume[_MAX_DRIVE];
|
|
char dirname[_MAX_PATH];
|
|
char name[_MAX_FNAME];
|
|
char ext[_MAX_EXT];
|
|
xvt_fsys_parse_pathname (table, volume, dirname, name, ext, NULL);
|
|
|
|
const int logicnum = table2logic(name);
|
|
|
|
if (mode == 0x0)
|
|
mode = 0x1;
|
|
if (mode & 0x4)
|
|
{
|
|
if (logicnum >= LF_USER && *dirname == '\0')
|
|
{
|
|
TSystemisamfile isam(logicnum);
|
|
if (isam.zap() != NOERR)
|
|
return error_box(TR("Impossibile cancellare il file '%s'"), table);
|
|
}
|
|
else
|
|
{
|
|
TFilename n;
|
|
n = volume; n.add(dirname); n.add(name); n.ext("*");
|
|
TString_array files; list_files(n, files);
|
|
FOR_EACH_ARRAY_ROW(files, f, row)
|
|
xvt_fsys_removefile(*row);
|
|
}
|
|
mode = 0x1;
|
|
}
|
|
|
|
TLocalisamfile* pisam = NULL;
|
|
if (logicnum >= LF_USER)
|
|
{
|
|
if (*dirname)
|
|
pisam = new TIsamtempfile(logicnum, table);
|
|
else
|
|
pisam = new TLocalisamfile(logicnum);
|
|
}
|
|
if (pisam == NULL)
|
|
return error_box("Impossibile creare il file %s", table);
|
|
|
|
TLocalisamfile& isam = *pisam;
|
|
|
|
TProgind pi(items(), TR("Esportazione in corso..."));
|
|
TRectype& rec = isam.curr();
|
|
|
|
TString_array names;
|
|
int valid = 0;
|
|
for (unsigned int j = 0; j < columns(); j++)
|
|
{
|
|
const TVariant& var = get(j);
|
|
const TString& name = column_info(j)._name;
|
|
if (rec.exist(name))
|
|
{
|
|
names.add(name);
|
|
valid++;
|
|
}
|
|
else
|
|
names.add(EMPTY_STRING);
|
|
}
|
|
|
|
bool ok = true;
|
|
for (bool go = move_first(); go; go = move_next())
|
|
{
|
|
pi.addstatus(1);
|
|
rec.zero();
|
|
FOR_EACH_ARRAY_ROW(names, j, name) if (name->not_empty())
|
|
rec.put(*name, get(j).as_string());
|
|
|
|
int err = NOERR;
|
|
bool to_be_written = true;
|
|
|
|
// Devo solo aggiornare parte dei campi?
|
|
if ((mode & 0x2) && valid < rec.items())
|
|
{
|
|
err = isam.read(_isequal, _lock);
|
|
if (err != NOERR)
|
|
rec.zero();
|
|
FOR_EACH_ARRAY_ROW(names, j, name) if (name->not_empty())
|
|
rec.put(*name, get(j).as_string());
|
|
if (err == NOERR)
|
|
to_be_written = isam.rewrite() != NOERR;
|
|
}
|
|
if (to_be_written)
|
|
{
|
|
err = (mode & 0x1) ? isam.write() : isam.rewrite();
|
|
if (err != NOERR && (mode & 0x3) != 0)
|
|
err = (mode & 0x1) ? isam.rewrite() : isam.write();
|
|
}
|
|
if (err != NOERR)
|
|
{
|
|
ok = error_box(FR("Errore %d durante la scrittura del record %s"), err, rec.build_key());
|
|
break;
|
|
}
|
|
}
|
|
|
|
return ok;
|
|
}
|
|
|
|
|
|
void TSQL_recordset::set(const char* sql)
|
|
{
|
|
reset();
|
|
_sql = sql;
|
|
if (_sql.find("SELECT") >= 0 || _sql.find("select") >= 0)
|
|
{
|
|
_TheDataBase.parse_select_from(_sql);
|
|
find_and_reset_vars();
|
|
}
|
|
}
|
|
|
|
TSQL_recordset::TSQL_recordset(const char* sql)
|
|
{
|
|
set(sql);
|
|
}
|
|
|
|
///////////////////////////////////////////////////////////
|
|
// TCursor_parser
|
|
///////////////////////////////////////////////////////////
|
|
|
|
class TCursor_parser
|
|
{
|
|
istream& _instr;
|
|
TArray& _column;
|
|
|
|
TString _pushed;
|
|
TString _token;
|
|
|
|
TRelation* _relation;
|
|
TCursor* _cursor;
|
|
|
|
protected:
|
|
const TString& pop();
|
|
const TString& line();
|
|
void push();
|
|
void add_column_info(const char* table, const TRectype& rec);
|
|
|
|
void parse_sortexpr(TToken_string& se);
|
|
void parse_filter(TToken_string& filter);
|
|
void parse_select(TToken_string& filter);
|
|
void parse_region(TRectype& rec);
|
|
void parse_join_param(TRelation* rel, const TString& j, int to);
|
|
void parse_join();
|
|
void parse_sortedjoin();
|
|
|
|
public:
|
|
TRelation* get_relation() { return _relation; }
|
|
TCursor* get_cursor() { return _cursor; }
|
|
|
|
TCursor_parser(istream& instr, TArray& column);
|
|
};
|
|
|
|
const TString& TCursor_parser::pop()
|
|
{
|
|
if (_pushed.not_empty())
|
|
{
|
|
_token = _pushed;
|
|
_pushed.cut(0);
|
|
}
|
|
else
|
|
{
|
|
_token.cut(0);
|
|
|
|
eatwhite(_instr);
|
|
if (_instr.eof())
|
|
return _token;
|
|
|
|
char instring = '\0';
|
|
while (true)
|
|
{
|
|
char c;
|
|
_instr.get(c);
|
|
if (c == EOF)
|
|
break;
|
|
if (instring > ' ') // Sono dentro ad una stringa
|
|
{
|
|
if (c == '\n')
|
|
break;
|
|
if (c == instring)
|
|
instring = '\0';
|
|
_token << c;
|
|
}
|
|
else
|
|
{
|
|
if (c == '"' || c == '\'')
|
|
{
|
|
instring = c;
|
|
_token << c;
|
|
}
|
|
else
|
|
{
|
|
if (isspace(c))
|
|
break;
|
|
_token << c;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
return _token;
|
|
}
|
|
|
|
const TString& TCursor_parser::line()
|
|
{
|
|
if (_pushed.not_empty())
|
|
return pop();
|
|
char* buff = _token.get_buffer(256);
|
|
_instr.getline(buff, _token.size());
|
|
return _token;
|
|
}
|
|
|
|
void TCursor_parser::push()
|
|
{
|
|
CHECK(_pushed.empty(), "Repushing?");
|
|
_pushed = _token;
|
|
}
|
|
|
|
void TCursor_parser::add_column_info(const char* table, const TRectype& rec)
|
|
{
|
|
for (int i = 0; i < rec.items(); i++)
|
|
{
|
|
TRecordset_column_info* info = new TRecordset_column_info;
|
|
const char* name = rec.fieldname(i);
|
|
info->_name << table << '.' << name;
|
|
info->_type = rec.type(name);
|
|
switch (info->_type)
|
|
{
|
|
case _datefld: info->_width = 10; break;
|
|
case _memofld: info->_width = 50; break;
|
|
default : info->_width = rec.length(name); break;
|
|
}
|
|
_column.add(info);
|
|
}
|
|
}
|
|
|
|
void TCursor_parser::parse_sortexpr(TToken_string& se)
|
|
{
|
|
const char sep = se.separator();
|
|
se.separator(' ');
|
|
_instr.getline(se.get_buffer(), se.size());
|
|
se.strip_double_spaces();
|
|
se.replace(' ', sep);
|
|
se.separator(sep);
|
|
|
|
// Trasforma i nomi dei files in numeri se necessario
|
|
if (se.find('.') > 0)
|
|
{
|
|
TToken_string fld(16, '.');
|
|
TString16 name;
|
|
for (int i = 0; se.get(i, fld); i++)
|
|
{
|
|
if (!isdigit(fld[0]) && fld.find('.') > 0)
|
|
{
|
|
fld.get(0, name);
|
|
const int num = ::table2logic(name);
|
|
if (num != 0)
|
|
{
|
|
fld.add(num, 0);
|
|
se.add(fld, i);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
void TCursor_parser::parse_filter(TToken_string& filter)
|
|
{
|
|
const TString& str = pop();
|
|
while (str.find('=') > 0)
|
|
{
|
|
filter.add(str);
|
|
pop();
|
|
}
|
|
push();
|
|
}
|
|
|
|
void TCursor_parser::parse_select(TToken_string& filter)
|
|
{
|
|
filter = line();
|
|
filter.trim();
|
|
}
|
|
|
|
|
|
void TCursor_parser::parse_region(TRectype& rec)
|
|
{
|
|
TString16 field;
|
|
TString80 value;
|
|
while (true)
|
|
{
|
|
const TString& ass = pop();
|
|
const int equal = ass.find('=');
|
|
if (equal > 0)
|
|
{
|
|
field = ass.left(equal);
|
|
value = ass.mid(equal+1);
|
|
if (value[0] == '"' || value[0] == '\'')
|
|
{
|
|
value.rtrim(1);
|
|
value.ltrim(1);
|
|
}
|
|
rec.put(field, value);
|
|
}
|
|
else
|
|
break;
|
|
}
|
|
push();
|
|
}
|
|
|
|
|
|
void TCursor_parser::parse_join_param(TRelation* rel, const TString& j, int to)
|
|
{
|
|
int key = 1;
|
|
const TString& tok = pop();
|
|
if (tok.starts_with("KE"))
|
|
{
|
|
pop();
|
|
key = atoi(tok);
|
|
}
|
|
else
|
|
push();
|
|
|
|
int alias = 0;
|
|
pop();
|
|
if (tok.starts_with("AL"))
|
|
{
|
|
pop();
|
|
alias = atoi(tok);
|
|
}
|
|
else
|
|
push();
|
|
|
|
TToken_string exp(80);
|
|
pop();
|
|
if (tok == "INTO")
|
|
{
|
|
parse_filter(exp);
|
|
}
|
|
if (exp.empty())
|
|
yesnofatal_box("JOIN senza espressioni INTO");
|
|
|
|
const int logicnum = table2logic(j);
|
|
if (logicnum != LF_TAB && logicnum != LF_TABCOM)
|
|
rel->add(logicnum, exp, key, to, alias); // join file
|
|
else
|
|
rel->add(j, exp, key, to, alias); // join table
|
|
|
|
TString16 tabname;
|
|
if (alias > 0)
|
|
tabname << alias << '@';
|
|
else
|
|
tabname = j;
|
|
const TRectype& rec = rel->curr(logicnum);
|
|
add_column_info(tabname, rec);
|
|
}
|
|
|
|
void TCursor_parser::parse_join()
|
|
{
|
|
const TString j = pop(); // File or table
|
|
|
|
int to = 0;
|
|
const TString& tok = pop();
|
|
if (tok == "TO") // TO keyword
|
|
{
|
|
pop();
|
|
to = table2logic(tok);
|
|
}
|
|
else
|
|
push();
|
|
|
|
parse_join_param(_relation, j, to);
|
|
}
|
|
|
|
void TCursor_parser::parse_sortedjoin()
|
|
{
|
|
TToken_string filter,sortexp;
|
|
const TString j = pop(); // File or table
|
|
const TString& tok = pop();
|
|
if (tok == "BY" )
|
|
{
|
|
parse_sortexpr(sortexp);
|
|
}
|
|
else
|
|
push();
|
|
|
|
pop();
|
|
if (tok.starts_with("FI") || tok.starts_with("SE"))
|
|
{
|
|
parse_select(filter);
|
|
}
|
|
else
|
|
push();
|
|
|
|
TRelation* sortrel = new TRelation(table2logic(j));
|
|
while (true)
|
|
{
|
|
pop();
|
|
if (tok.empty() || tok.starts_with("JO"))
|
|
{
|
|
push();
|
|
break;
|
|
}
|
|
|
|
if (tok.starts_with("US")) // USING keyword
|
|
{
|
|
const TString subj = pop(); // File or table
|
|
parse_join_param(sortrel, subj, table2logic(j));
|
|
}
|
|
}
|
|
|
|
int to = 0;
|
|
pop();
|
|
if (tok == "TO") // TO keyword
|
|
{
|
|
pop();
|
|
to = table2logic(tok);
|
|
}
|
|
else
|
|
push();
|
|
|
|
int key = 1;
|
|
pop();
|
|
if (tok.starts_with("KE"))
|
|
{
|
|
pop();
|
|
key = atoi(tok);
|
|
}
|
|
else
|
|
push();
|
|
|
|
int alias = 0;
|
|
pop();
|
|
if (tok.starts_with("AL"))
|
|
{
|
|
pop();
|
|
alias = atoi(tok);
|
|
}
|
|
else
|
|
push();
|
|
|
|
TToken_string exp(80);
|
|
if (pop() == "INTO")
|
|
{
|
|
pop();
|
|
while (tok.find('=') > 0)
|
|
{
|
|
exp.add(tok);
|
|
pop();
|
|
}
|
|
}
|
|
push();
|
|
|
|
TSortedfile *sf= new TSortedfile(atoi(j),sortrel,sortexp,filter,key);
|
|
_relation->add((TLocalisamfile *)sf, exp, key, to, alias, false); // join table
|
|
|
|
TString16 tabname = j;
|
|
if (alias > 0)
|
|
tabname.cut(0) << alias << '@';
|
|
add_column_info(tabname, sf->curr());
|
|
}
|
|
|
|
TCursor_parser::TCursor_parser(istream& instr, TArray& col)
|
|
: _instr(instr), _column(col), _relation(NULL), _cursor(NULL)
|
|
{
|
|
_column.destroy();
|
|
const TString& tok = pop();
|
|
if (!tok.starts_with("US"))
|
|
push();
|
|
|
|
pop();
|
|
if (tok.blank())
|
|
return;
|
|
|
|
int logicnum = table2logic(tok);
|
|
if (logicnum == LF_MAG && tok == "MAG") // Faccio prevalere la tabella MAG sul file MAG
|
|
logicnum = LF_TAB;
|
|
|
|
if (logicnum == LF_TAB || logicnum == LF_TABCOM)
|
|
_relation = new TRelation(tok);
|
|
else
|
|
_relation = new TRelation(logicnum);
|
|
add_column_info(tok, _relation->curr());
|
|
|
|
int key = 1; // key number
|
|
pop();
|
|
if (tok.starts_with("KE"))
|
|
{
|
|
pop();
|
|
key = atoi(tok);
|
|
}
|
|
else
|
|
push();
|
|
|
|
pop();
|
|
|
|
TToken_string filter;
|
|
|
|
if (tok.starts_with("FI") || tok.starts_with("SE"))
|
|
parse_select(filter);
|
|
else
|
|
push();
|
|
|
|
pop();
|
|
if (tok.starts_with("BY")) // "sort BY": user-defined sort
|
|
{
|
|
TToken_string ordexpr(256);
|
|
parse_sortexpr(ordexpr);
|
|
_cursor = new TSorted_cursor(_relation, ordexpr, "", key);
|
|
}
|
|
else
|
|
push();
|
|
|
|
|
|
if (_cursor == NULL)
|
|
_cursor = new TCursor(_relation, "", key);
|
|
|
|
TRectype rec_start(_relation->curr());
|
|
TRectype rec_stop(rec_start);
|
|
|
|
while (true)
|
|
{
|
|
pop();
|
|
if (tok.starts_with("FR"))
|
|
parse_region(rec_start); else
|
|
if (tok.starts_with("TO"))
|
|
parse_region(rec_stop); else
|
|
if (tok.starts_with("JO"))
|
|
parse_join(); else
|
|
if (tok.starts_with("SO"))
|
|
parse_sortedjoin();
|
|
else
|
|
break;
|
|
}
|
|
push();
|
|
|
|
if (!rec_start.empty() || !rec_stop.empty())
|
|
_cursor->setregion(rec_start, rec_stop);
|
|
if (!filter.empty())
|
|
_cursor->setfilter(filter);
|
|
if (_relation->items() == 0) // Non ci sono anche tabelle collegate
|
|
{
|
|
FOR_EACH_ARRAY_ITEM(_column, i, obj)
|
|
{
|
|
TRecordset_column_info* info = (TRecordset_column_info*)obj;
|
|
const int arrow = info->_name.find('.');
|
|
if (arrow > 0)
|
|
info->_name = info->_name.mid(arrow+1);
|
|
}
|
|
}
|
|
}
|
|
|
|
///////////////////////////////////////////////////////////
|
|
// TISAM_recordset
|
|
///////////////////////////////////////////////////////////
|
|
|
|
const TVariant& TISAM_recordset::get(int logic, const char* fldname) const
|
|
{
|
|
const int idx = relation()->log2ind(logic);
|
|
if (idx < 0)
|
|
return NULL_VARIANT;
|
|
|
|
TString80 name = fldname;
|
|
TString16 subfield;
|
|
int from = 1, to = 0;
|
|
|
|
const int open_bracket = name.find('[');
|
|
if (open_bracket > 0)
|
|
{
|
|
sscanf((const char*)name + open_bracket, "[%d,%d]", &from, &to);
|
|
name.cut(open_bracket);
|
|
}
|
|
|
|
const int colon = name.find(':');
|
|
if (colon > 0)
|
|
{
|
|
subfield = name.mid(colon+1);
|
|
name.cut(colon);
|
|
}
|
|
|
|
const TRectype& rec = relation()->file(idx).curr();
|
|
const TFieldtypes ft = rec.type(name);
|
|
|
|
if (ft == _nullfld)
|
|
{
|
|
if (logic == LF_DOC) // Proviamo la magia
|
|
{
|
|
subfield = name;
|
|
name = "G1";
|
|
}
|
|
else
|
|
return NULL_VARIANT;
|
|
}
|
|
|
|
TVariant& var = get_tmp_var();
|
|
switch (ft)
|
|
{
|
|
case _datefld: var.set(rec.get_date(name)); break;
|
|
case _realfld: var.set(rec.get_real(name)); break;
|
|
case _intfld :
|
|
case _longfld:
|
|
case _wordfld: var.set(rec.get_long(name)); break;
|
|
default : var.set(rec.get(name)); break;
|
|
}
|
|
|
|
if (subfield.not_empty())
|
|
{
|
|
subfield << '=';
|
|
const TString& str = var.as_string();
|
|
int s = str.find(subfield);
|
|
if (s == 0 || (s > 0 && str[s-1] < ' '))
|
|
{
|
|
s += subfield.len();
|
|
const int e = str.find('\n', s);
|
|
var.set(str.sub(s, e));
|
|
}
|
|
}
|
|
|
|
if (to >= from)
|
|
var.set(var.as_string().sub(from-1, to));
|
|
|
|
return var;
|
|
}
|
|
|
|
const TVariant& TISAM_recordset::get(size_t c) const
|
|
{
|
|
const TRecordset_column_info* info = (const TRecordset_column_info*)_column.objptr(c);
|
|
if (info != NULL)
|
|
{
|
|
int logic = 0;
|
|
const char* field = info->_name;
|
|
const int dot = info->_name.find('.');
|
|
if (dot > 0)
|
|
{
|
|
logic = table2logic(info->_name.left(dot));
|
|
field += dot+1;
|
|
}
|
|
return get(logic, field);
|
|
}
|
|
return NULL_VARIANT;
|
|
}
|
|
|
|
const TVariant& TISAM_recordset::get(const char* name) const
|
|
{
|
|
if (*name == '#')
|
|
return get_var(name);
|
|
|
|
const TFixed_string fldname(name);
|
|
|
|
int table_end = fldname.find('.');
|
|
int field_start = table_end+1;
|
|
if (table_end < 0)
|
|
{
|
|
table_end = fldname.find('-');
|
|
if (table_end > 0)
|
|
field_start = table_end+2;
|
|
}
|
|
int logic = 0;
|
|
const char* field = name;
|
|
if (table_end > 0)
|
|
{
|
|
const TString& table = fldname.left(table_end);
|
|
logic = table2logic(table);
|
|
field += field_start;
|
|
}
|
|
return get(logic, field);
|
|
}
|
|
|
|
const TRecordset_column_info& TISAM_recordset::column_info(size_t i) const
|
|
{
|
|
return (const TRecordset_column_info&)_column[i];
|
|
}
|
|
|
|
TCursor* TISAM_recordset::cursor() const
|
|
{
|
|
if (_cursor == NULL && !_use.blank())
|
|
{
|
|
TString use; parsed_text(use);
|
|
TPerformance_profiler prof("ISAM query");
|
|
TISAM_recordset* my = (TISAM_recordset*)this;
|
|
#ifdef LINUX
|
|
string s(use.get_buffer());
|
|
istringstream instr(s);
|
|
#else
|
|
istrstream instr(use.get_buffer(), use.len());
|
|
#endif
|
|
TCursor_parser parser(instr, my->_column);
|
|
|
|
my->_relation = parser.get_relation();
|
|
my->_cursor = parser.get_cursor();
|
|
|
|
if (_cursor != NULL)
|
|
{
|
|
set_custom_filter(*_cursor);
|
|
const TRecnotype items = _cursor->items();
|
|
_cursor->freeze();
|
|
if (items > 0)
|
|
*_cursor = 0L;
|
|
}
|
|
}
|
|
return _cursor;
|
|
}
|
|
|
|
TRelation* TISAM_recordset::relation() const
|
|
{
|
|
cursor();
|
|
return _relation;
|
|
}
|
|
|
|
TRecnotype TISAM_recordset::current_row() const
|
|
{
|
|
TCursor* c = cursor();
|
|
return c != NULL ? c->pos() : -1;
|
|
}
|
|
|
|
TRecnotype TISAM_recordset::items() const
|
|
{
|
|
TCursor* c = cursor();
|
|
return c != NULL ? c->items() : 0;
|
|
}
|
|
|
|
unsigned int TISAM_recordset::columns() const
|
|
{
|
|
cursor();
|
|
return _column.items();
|
|
}
|
|
|
|
|
|
bool TISAM_recordset::move_to(TRecnotype pos)
|
|
{
|
|
TCursor* c = cursor();
|
|
bool ok = c != NULL && pos >= 0;
|
|
if (ok)
|
|
{
|
|
*c = pos;
|
|
ok = pos >= 0 && pos < items();
|
|
}
|
|
return ok;
|
|
}
|
|
|
|
void TISAM_recordset::reset()
|
|
{
|
|
_column.destroy();
|
|
if (_relation != NULL)
|
|
{
|
|
delete _relation;
|
|
_relation = NULL;
|
|
}
|
|
if (_cursor != NULL)
|
|
{
|
|
delete _cursor;
|
|
_cursor = NULL;
|
|
}
|
|
}
|
|
|
|
void TISAM_recordset::requery()
|
|
{
|
|
if (_cursor != NULL)
|
|
{
|
|
delete _cursor;
|
|
_cursor = NULL;
|
|
}
|
|
}
|
|
|
|
void TISAM_recordset::set(const char* use)
|
|
{
|
|
reset();
|
|
_use = use;
|
|
find_and_reset_vars();
|
|
}
|
|
|
|
TISAM_recordset::TISAM_recordset(const char* use)
|
|
: _relation(NULL), _cursor(NULL)
|
|
{
|
|
set(use);
|
|
}
|
|
|
|
TISAM_recordset::~TISAM_recordset()
|
|
{
|
|
reset();
|
|
}
|
|
|
|
///////////////////////////////////////////////////////////
|
|
// TRecordset_sheet
|
|
///////////////////////////////////////////////////////////
|
|
|
|
void TRecordset_sheet::get_row(long r, TToken_string& row)
|
|
{
|
|
row.separator('\t');
|
|
row.cut(0);
|
|
if (_query.move_to(r))
|
|
{
|
|
TString str;
|
|
for (unsigned int c = 0; c < _query.columns(); c++)
|
|
{
|
|
_query.get(c).as_string(str);
|
|
row.add(str);
|
|
}
|
|
}
|
|
}
|
|
|
|
long TRecordset_sheet::get_items() const
|
|
{
|
|
return _query.items();
|
|
}
|
|
|
|
TRecordset_sheet::TRecordset_sheet(TRecordset& query)
|
|
: TSheet(-1, -1, -2, -4, "Query", query.sheet_head()), _query(query)
|
|
{
|
|
}
|