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db\ColumnSchemaBuilder buildUniqueString()

buildUniqueString() protected method

Builds the unique constraint for the column.

protected string buildUniqueString ( )
return	string	Returns string 'UNIQUE' if $isUnique is true, otherwise it returns an empty string.

Links:

http://www.yiiframework.com/doc-2.0/yii-db-columnschemabuilder.html#buildUniqueString()-detail

doc_Yii

2016-10-30 16:57:13

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