laravel first0rNew Integrity Constraint Violation

问题

I'm using Laravel Eloquent's firstOrNew() function to retrieve a DB record based on 3 criteria:

$summary = $this->firstOrNew(array(
    'date' => $date,
    'product_id' => $product_id,
    'store_id' => $store_id,
     ));

I also have a unique composite key of those 3 fields.

Even though the record exists, the function doesn't retrieve it, so when I update an attribute and run $summary->save() I get the wonderful

SQLSTATE[23000]: Integrity constraint violation: 1062 Duplicate entry >'2015-01-02-6-23' for key 'date_product_store_unique'

Any ideas?

Laravel version is 4.2.

回答1:

Laravel 4.2 doesnt support composite keys!

来源：https://stackoverflow.com/questions/28889236/laravel-first0rnew-integrity-constraint-violation