yii\db\ColumnSchemaBuilder::buildFirstString PHP Method

ColumnSchemaBuilder Class Documentation ファイルを表示 Open project: yiisoft/yii2

buildFirstString() protected method

Builds the first constraint for the column. Defaults to unsupported.
Since: 2.0.8
protected buildFirstString ( ) : string
return string a string containing the FIRST constraint. 
    protected function buildFirstString()
    {
        return '';
    }
ColumnSchemaBuilder
__construct
__toString
after
append
buildAfterString
buildAppendString
buildCheckString
buildCommentString
buildCompleteString
buildDefaultString
buildFirstString
buildLengthString
buildNotNullString
buildUniqueString
buildUnsignedString
check
comment
defaultExpression
defaultValue
first
getTypeCategory
notNull
null
unique
unsigned