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@@ -640,6 +640,24 @@ bool QgsSpatiaLiteConnection::isDeclaredHidden( sqlite3 *handle, const QString & |
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static void fcnRegexp( sqlite3_context *ctx, int /*argc*/, sqlite3_value *argv[] ) |
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{ |
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// Get arguments and check their values |
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QRegExp arg1( reinterpret_cast<const char *>( sqlite3_value_text( argv[0] ) ) ); |
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QString arg2( reinterpret_cast<const char *>( sqlite3_value_text( argv[1] ) ) ); |
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if ( !arg1.isValid() ) |
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return sqlite3_result_error( ctx, "invalid operand", -1 ); |
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// Set the pattern matching syntax to a Perl-like one. This is the default in Qt 4.x but Qt 5 |
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// changes this to a greedy one (QRegExp::RegExp2). To make sure the behaviour of our application |
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// doesn't change depending on the build environment, we make sure to always set the same pattern |
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// matching syntax. |
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arg1.setPatternSyntax( QRegExp::RegExp ); |
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// Perform the actual matching and return the result. Note that Qt's QRegExp returns -1 if the regex |
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// doesn't match and the position in the string otherwise; SQLite expects a 0 for not found and a 1 for found. |
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sqlite3_result_int( ctx, arg1.indexIn( arg2 ) >= 0 ); |
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} |
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@@ -702,6 +720,10 @@ QgsSqliteHandle *QgsSqliteHandle::openDb( const QString &dbPath, bool shared ) |
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QgsDebugMsg( QStringLiteral( "Failure while connecting to: %1\n\ninvalid metadata tables" ).arg( dbPath ) ); |
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return nullptr; |
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} |
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// add REGEXP function |
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sqlite3_create_function( database.get(), "REGEXP", 2, SQLITE_UTF8, nullptr, fcnRegexp, nullptr, nullptr ); |
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// activating Foreign Key constraints |
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( void )sqlite3_exec( database.get(), "PRAGMA foreign_keys = 1", nullptr, nullptr, nullptr ); |
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