Revision 5b3f11b2
Von Christian Ehringfeld vor mehr als 8 Jahren hinzugefügt
| src/schema/mysqlschema.cpp | ||
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void MysqlSchema::findConstraints(const QSharedPointer<TableSchema> &ts) {
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// QString sql = "SHOW INDEX";
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// sql += " FROM " + this->quoteSimpleTableName(table->getFullName());
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// QSqlQuery q = this->database->getQuery();
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// q.setForwardOnly(true);
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// q.exec(sql);
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QString sql =
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"SELECT table_name, column_name,referenced_table_name,referenced_column_name";
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sql += " FROM " + this->quoteTableName("information_schema.key_column_usage");
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sql += "WHERE " + this->quoteColumnName("referenced_table_name") +
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" is not null";
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sql += " AND " + this->quoteColumnName("table_schema") + " = \"" +
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this->getDatabase()->getDatabase().databaseName() + "\"";
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sql += " AND " + this->quoteColumnName("table_name") + " = \"" + ts->getName() +
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"\"";
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QSqlQuery q = this->database->getQuery();
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q.setForwardOnly(true);
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q.exec(sql);
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auto foreignKeys = ts->getRelations();
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// while (q.next()) {
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// bool ok;
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// int id = q.value("id").toInt(&ok);
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// if (ok) {
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// auto rel = new QSqlRelation(q.value("table").toString(),
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// q.value("from").toString(),
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// q.value("to").toString());
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// auto ptr = QSharedPointer<QSqlRelation>(rel);
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// foreignKeys.insert(QString::number(id), ptr);
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// }
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// }
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int id = 0;
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while (q.next()) {
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bool ok;
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if (ok) {
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auto rel = new QSqlRelation(q.value("referenced_table_name").toString(),
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q.value("column_name").toString(),
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q.value("referenced_column_name").toString());
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auto ptr = QSharedPointer<QSqlRelation>(rel);
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foreignKeys.insert(QString::number(id), ptr);
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}
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id++;
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}
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ts->setRelations(foreignKeys);
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}
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Auch abrufbar als: Unified diff
find constraints