Laravel 5.1 Migration and Seeding Cannot truncate a table referenced in a foreign key constraint

Question

I\'m trying to run the migration (see below) and seed the database, but when I run

php artisan migrate --seed

I get this error:

<         


        

Answer 1

Here is what works for me every time. When you're adding the foreign key, make sure to add cascade. the syntax is like this

$table->foreign('column')->references('id')->on('table_name')->onDelete('cascade');

Make sure to replace id with whatever field is applicable for you.

Now before running the seeding add this instead of trucate

DB::statement('DELETE FROM table_name');

It will delete all the data. Hope this helps.