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#include "columnforeignkeypanel.h"
#include "ui_columnforeignkeypanel.h"
#include "schemaresolver.h"
#include "uiutils.h"
#include <QDebug>
#include <QSignalMapper>
ColumnForeignKeyPanel::ColumnForeignKeyPanel(QWidget *parent) :
ConstraintPanel(parent),
ui(new Ui::ColumnForeignKeyPanel)
{
ui->setupUi(this);
init();
}
ColumnForeignKeyPanel::~ColumnForeignKeyPanel()
{
delete ui;
}
void ColumnForeignKeyPanel::changeEvent(QEvent *e)
{
QWidget::changeEvent(e);
switch (e->type()) {
case QEvent::LanguageChange:
ui->retranslateUi(this);
break;
default:
break;
}
}
bool ColumnForeignKeyPanel::validate()
{
bool tableOk = (ui->fkTableCombo->currentIndex() > -1);
bool columnOk = (ui->fkColumnCombo->currentIndex() > -1);
bool nameOk = !ui->namedCheckBox->isChecked() || !ui->nameEdit->text().isEmpty();
setValidState(ui->fkTableCombo, tableOk, tr("Pick the foreign table."));
setValidState(ui->fkColumnCombo, columnOk, tr("Pick the foreign column."));
setValidState(ui->nameEdit, nameOk, tr("Enter a name of the constraint."));
return tableOk && columnOk && nameOk;
}
void ColumnForeignKeyPanel::constraintAvailable()
{
readTables();
readConstraint();
}
void ColumnForeignKeyPanel::init()
{
setFocusProxy(ui->fkTableCombo);
ui->fkColumnCombo->setModel(&fkColumnsModel);
connect(ui->fkColumnCombo, SIGNAL(currentIndexChanged(int)), this, SIGNAL(updateValidation()));
connect(ui->namedCheckBox, SIGNAL(toggled(bool)), this, SIGNAL(updateValidation()));
connect(ui->nameEdit, SIGNAL(textChanged(QString)), this, SIGNAL(updateValidation()));
connect(ui->fkTableCombo, SIGNAL(currentIndexChanged(int)), this, SIGNAL(updateValidation()));
connect(ui->fkTableCombo, SIGNAL(currentIndexChanged(int)), this, SLOT(updateFkColumns()));
connect(ui->fkTableCombo, SIGNAL(currentIndexChanged(int)), this, SLOT(updateState()));
connect(ui->onDeleteCheckBox, SIGNAL(toggled(bool)), this, SLOT(updateState()));
connect(ui->onUpdateCheckBox, SIGNAL(toggled(bool)), this, SLOT(updateState()));
connect(ui->matchCheckBox, SIGNAL(toggled(bool)), this, SLOT(updateState()));
ui->deferrableCombo->addItems({
"",
sqliteDeferrable(SqliteDeferrable::DEFERRABLE),
sqliteDeferrable(SqliteDeferrable::NOT_DEFERRABLE)
});
ui->initiallyCombo->addItems({
"",
sqliteInitially(SqliteInitially::DEFERRED),
sqliteInitially(SqliteInitially::IMMEDIATE),
});
QStringList reactions = {
SqliteForeignKey::Condition::toString(SqliteForeignKey::Condition::NO_ACTION),
SqliteForeignKey::Condition::toString(SqliteForeignKey::Condition::SET_NULL),
SqliteForeignKey::Condition::toString(SqliteForeignKey::Condition::SET_DEFAULT),
SqliteForeignKey::Condition::toString(SqliteForeignKey::Condition::CASCADE),
SqliteForeignKey::Condition::toString(SqliteForeignKey::Condition::RESTRICT)
};
ui->onUpdateCombo->addItems(reactions);
ui->onDeleteCombo->addItems(reactions);
ui->matchCombo->addItems({"SIMPLE", "FULL", "PARTIAL"});
connect(ui->namedCheckBox, SIGNAL(toggled(bool)), this, SLOT(updateState()));
updateState();
}
void ColumnForeignKeyPanel::updateState()
{
bool tableSelected = (ui->fkTableCombo->currentIndex() > -1);
ui->fkColumnCombo->setEnabled(tableSelected);
ui->deferrableCombo->setEnabled(tableSelected);
ui->initiallyCombo->setEnabled(tableSelected);
ui->namedCheckBox->setEnabled(tableSelected);
ui->nameEdit->setEnabled(tableSelected && ui->namedCheckBox->isChecked());
ui->onDeleteCheckBox->setEnabled(tableSelected);
ui->onUpdateCheckBox->setEnabled(tableSelected);
ui->matchCheckBox->setEnabled(tableSelected);
ui->onDeleteCombo->setEnabled(tableSelected && ui->onDeleteCheckBox->isChecked());
ui->onUpdateCombo->setEnabled(tableSelected && ui->onUpdateCheckBox->isChecked());
ui->matchCombo->setEnabled(tableSelected && ui->matchCheckBox->isChecked());
}
void ColumnForeignKeyPanel::updateFkColumns()
{
QStringList columns;
if (ui->fkTableCombo->currentIndex() == -1)
{
fkColumnsModel.setStringList(columns);
updateState();
return;
}
SchemaResolver resolver(db);
columns = resolver.getTableColumns(ui->fkTableCombo->currentText()); // TODO named db attach not supported
fkColumnsModel.setStringList(columns);
}
void ColumnForeignKeyPanel::readConstraint()
{
if (constraint.isNull())
return;
SqliteCreateTable::Column* column = dynamic_cast<SqliteCreateTable::Column*>(constraint->parent());
SqliteCreateTable::Column::Constraint* constr = dynamic_cast<SqliteCreateTable::Column::Constraint*>(constraint.data());
if (!constr->foreignKey)
return;
// Table
if (!constr->foreignKey->foreignTable.isNull())
ui->fkTableCombo->setCurrentText(constr->foreignKey->foreignTable);
// Conditions
for (SqliteForeignKey::Condition* condition : constr->foreignKey->conditions)
readCondition(condition);
// Initially, Deferrable
ui->deferrableCombo->setCurrentText(sqliteDeferrable(constr->foreignKey->deferrable));
ui->initiallyCombo->setCurrentText(sqliteInitially(constr->foreignKey->initially));
// Name
if (!constr->name.isNull())
{
ui->namedCheckBox->setChecked(true);
ui->nameEdit->setText(constr->name);
}
// Column
if (constr->foreignKey->indexedColumns.size() > 1)
{
qWarning() << "More than one referenced column in the column foreign key:" << constr->detokenize();
return;
}
QString fkColumn = column->name;
if (constr->foreignKey->indexedColumns.size() == 1)
fkColumn = constr->foreignKey->indexedColumns.first()->name;
ui->fkColumnCombo->setCurrentText(fkColumn);
}
void ColumnForeignKeyPanel::readCondition(SqliteForeignKey::Condition* condition)
{
switch (condition->action)
{
case SqliteForeignKey::Condition::UPDATE:
ui->onUpdateCheckBox->setChecked(true);
ui->onUpdateCombo->setCurrentText(SqliteForeignKey::Condition::toString(condition->reaction));
break;
case SqliteForeignKey::Condition::INSERT:
// INSERT is not officially supported.
break;
case SqliteForeignKey::Condition::DELETE:
ui->onDeleteCheckBox->setChecked(true);
ui->onDeleteCombo->setCurrentText(SqliteForeignKey::Condition::toString(condition->reaction));
break;
case SqliteForeignKey::Condition::MATCH:
ui->matchCheckBox->setChecked(true);
ui->matchCombo->setCurrentText(SqliteForeignKey::Condition::toString(condition->reaction));
break;
}
}
void ColumnForeignKeyPanel::storeConfiguration()
{
if (constraint.isNull())
return;
// Type
SqliteCreateTable::Column::Constraint* constr = dynamic_cast<SqliteCreateTable::Column::Constraint*>(constraint.data());
constr->type = SqliteCreateTable::Column::Constraint::FOREIGN_KEY;
// Cleanup & initial setup
if (constr->foreignKey)
delete constr->foreignKey;
constr->foreignKey = new SqliteForeignKey();
constr->foreignKey->setParent(constr);
// Foreign table
constr->foreignKey->foreignTable = ui->fkTableCombo->currentText();
// Column
SqliteIndexedColumn* idxCol = new SqliteIndexedColumn(ui->fkColumnCombo->currentText());
idxCol->setParent(constr->foreignKey);
constr->foreignKey->indexedColumns << idxCol;
// Actions/reactions
if (ui->onDeleteCheckBox->isChecked())
storeCondition(SqliteForeignKey::Condition::DELETE, ui->onDeleteCombo->currentText());
if (ui->onUpdateCheckBox->isChecked())
storeCondition(SqliteForeignKey::Condition::UPDATE, ui->onUpdateCombo->currentText());
if (ui->matchCheckBox->isChecked())
storeMatchCondition(ui->matchCombo->currentText());
// Deferred/initially
constr->foreignKey->deferrable = sqliteDeferrable(ui->deferrableCombo->currentText());
constr->foreignKey->initially = sqliteInitially(ui->initiallyCombo->currentText());
// Name
constr->name = QString();
if (ui->namedCheckBox->isChecked())
constr->name = ui->nameEdit->text();
}
void ColumnForeignKeyPanel::storeCondition(SqliteForeignKey::Condition::Action action, const QString& reaction)
{
SqliteCreateTable::Column::Constraint* constr = dynamic_cast<SqliteCreateTable::Column::Constraint*>(constraint.data());
SqliteForeignKey::Condition* condition = new SqliteForeignKey::Condition(
action,
SqliteForeignKey::Condition::toEnum(reaction)
);
condition->setParent(constr->foreignKey);
constr->foreignKey->conditions << condition;
}
void ColumnForeignKeyPanel::storeMatchCondition(const QString& reaction)
{
SqliteCreateTable::Column::Constraint* constr = dynamic_cast<SqliteCreateTable::Column::Constraint*>(constraint.data());
SqliteForeignKey::Condition* condition = new SqliteForeignKey::Condition(reaction);
condition->setParent(constr->foreignKey);
constr->foreignKey->conditions << condition;
}
void ColumnForeignKeyPanel::readTables()
{
SchemaResolver resolver(db);
resolver.setIgnoreSystemObjects(true);
QStringList tables = resolver.getTables(); // TODO named db attach not supported
tables.sort(Qt::CaseInsensitive);
ui->fkTableCombo->addItems(tables);
ui->fkTableCombo->setCurrentIndex(-1);
}
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