public function test()
{
$constraint = new PrimaryKey('column');
$this->assertSame(false, $constraint->isComposite());
$this->assertSame('PRIMARY KEY (`column`)', $constraint->buildCreate());
$this->assertSame('ADD PRIMARY KEY (`column`)', $constraint->buildAdd());
$this->assertSame('DROP PRIMARY KEY', $constraint->buildDrop());
$constraint = new PrimaryKey('column', 'column2');
$this->assertSame(true, $constraint->isComposite());
$this->assertSame('PRIMARY KEY (`column`, `column2`)', $constraint->buildCreate());
$this->assertSame('ADD PRIMARY KEY (`column`, `column2`)', $constraint->buildAdd());
$this->assertSame('DROP PRIMARY KEY', $constraint->buildDrop());
}
public final function setPrimaryKeyObject(PrimaryKey $primary_key) : TableInterface
{
if ($this->isImmutable()) {
throw SchemaException::immutable(static::class);
}
if ($this->hasPrimaryKey()) {
throw SchemaException::primaryKeyAlreadySet(static::class);
}
$missing = array_diff($primary_key->getColumns(), array_keys($this->getColumns()));
if ($missing !== []) {
throw TableException::columnNotSet(static::class, implode(', ', $missing));
}
$this->primary_key = $primary_key;
return $this;
}
