/**
* @param ForeignKeyConstraint $constraint
*/
protected function _addForeignKeyConstraint(ForeignKeyConstraint $constraint)
{
$constraint->setLocalTable($this);
if (strlen($constraint->getName())) {
$name = $constraint->getName();
} else {
$name = $this->_generateIdentifierName(array_merge((array) $this->getName(), $constraint->getLocalColumns()), "fk", $this->_getMaxIdentifierLength());
}
$name = strtolower($name);
$this->_fkConstraints[$name] = $constraint;
// add an explicit index on the foreign key columns. If there is already an index that fullfils this requirements drop the request.
// In the case of __construct calling this method during hydration from schema-details all the explicitly added indexes
// lead to duplicates. This creates compuation overhead in this case, however no duplicate indexes are ever added (based on columns).
$this->addIndex($constraint->getColumns());
}
/**
* Obtain DBMS specific SQL code portion needed to set the FOREIGN KEY constraint
* of a field declaration to be used in statements like CREATE TABLE.
*
* @param ForeignKeyConstraint $foreignKey
* @return string
*/
public function getForeignKeyBaseDeclarationSQL(ForeignKeyConstraint $foreignKey)
{
$sql = '';
if (strlen($foreignKey->getName())) {
$sql .= 'CONSTRAINT ' . $foreignKey->getQuotedName($this) . ' ';
}
$sql .= 'FOREIGN KEY (';
if (count($foreignKey->getLocalColumns()) == 0) {
throw new \InvalidArgumentException("Incomplete definition. 'local' required.");
}
if (count($foreignKey->getForeignColumns()) == 0) {
throw new \InvalidArgumentException("Incomplete definition. 'foreign' required.");
}
if (strlen($foreignKey->getForeignTableName()) == 0) {
throw new \InvalidArgumentException("Incomplete definition. 'foreignTable' required.");
}
$sql .= implode(', ', $foreignKey->getLocalColumns()) . ') REFERENCES ' . $foreignKey->getForeignTableName() . ' (' . implode(', ', $foreignKey->getForeignColumns()) . ')';
return $sql;
}
/**
* {@inheritdoc}
*/
public function acceptForeignKey(Table $localTable, ForeignKeyConstraint $fkConstraint)
{
$this->output .= $this->createNodeRelation($fkConstraint->getLocalTableName() . ":col" . current($fkConstraint->getLocalColumns()) . ":se", $fkConstraint->getForeignTableName() . ":col" . current($fkConstraint->getForeignColumns()) . ":se", array('dir' => 'back', 'arrowtail' => 'dot', 'arrowhead' => 'normal'));
}
/**
* @param ForeignKeyConstraint $constraint
*/
protected function _addForeignKeyConstraint(ForeignKeyConstraint $constraint)
{
$constraint->setLocalTable($this);
if (strlen($constraint->getName())) {
$name = $constraint->getName();
} else {
$name = $this->_generateIdentifierName(array_merge((array) $this->getName(), $constraint->getLocalColumns()), "fk", $this->_getMaxIdentifierLength());
}
$name = strtolower($name);
$this->_fkConstraints[$name] = $constraint;
}
/**
* @param ForeignKeyConstraint $constraint
*
* @return void
*/
protected function _addForeignKeyConstraint(ForeignKeyConstraint $constraint)
{
$constraint->setLocalTable($this);
if (strlen($constraint->getName())) {
$name = $constraint->getName();
} else {
$name = $this->_generateIdentifierName(array_merge((array) $this->getName(), $constraint->getLocalColumns()), "fk", $this->_getMaxIdentifierLength());
}
$name = $this->normalizeIdentifier($name);
$this->_fkConstraints[$name] = $constraint;
// add an explicit index on the foreign key columns. If there is already an index that fulfils this requirements drop the request.
// In the case of __construct calling this method during hydration from schema-details all the explicitly added indexes
// lead to duplicates. This creates computation overhead in this case, however no duplicate indexes are ever added (based on columns).
$indexName = $this->_generateIdentifierName(array_merge(array($this->getName()), $constraint->getColumns()), "idx", $this->_getMaxIdentifierLength());
$indexCandidate = $this->_createIndex($constraint->getColumns(), $indexName, false, false);
foreach ($this->_indexes as $existingIndex) {
if ($indexCandidate->isFullfilledBy($existingIndex)) {
return;
}
}
$this->_addIndex($indexCandidate);
$this->implicitIndexes[$this->normalizeIdentifier($indexName)] = $indexCandidate;
}
/**
* {@inheritDoc}
*/
public function getForeignKeyDeclarationSQL(ForeignKeyConstraint $foreignKey)
{
return parent::getForeignKeyDeclarationSQL(new ForeignKeyConstraint($foreignKey->getLocalColumns(), str_replace('.', '__', $foreignKey->getForeignTableName()), $foreignKey->getForeignColumns(), $foreignKey->getName(), $foreignKey->getOptions()));
}
/**
* Creates a foreign index replacement, which has quoted column names.
*
* @param ForeignKeyConstraint $fk
*
* @return ForeignKeyConstraint
*/
private function createForeignKeyReplacement(ForeignKeyConstraint $fk)
{
return new ForeignKeyConstraint($this->quoteIdentifiers($fk->getLocalColumns()), $this->platform->quoteIdentifier($fk->getForeignTableName()), $this->quoteIdentifiers($fk->getForeignColumns()), $this->platform->quoteIdentifier($fk->getName()), $fk->getOptions());
}
/**
* Accept a foreign key for a table
*
* @param Table $localTable a table object
* @param ForeignKeyConstraint $fkConstraint a constraint object
*
* @return void
*/
public function acceptForeignKey(Table $localTable, ForeignKeyConstraint $fkConstraint)
{
if (!isset($this->schemaArray['tables'][$localTable->getName()]['constraint'])) {
$this->schemaArray['tables'][$localTable->getName()]['constraint'] = array();
}
$this->schemaArray['tables'][$localTable->getName()]['constraint'][] = array('name' => $fkConstraint->getName(), 'localcolumns' => $fkConstraint->getLocalColumns(), 'foreigntable' => $fkConstraint->getForeignTableName(), 'foreigncolumns' => $fkConstraint->getForeignColumns(), 'options' => $fkConstraint->getOptions());
}
