Drop foreign key laravel

Laravel foreign key

Schema::table('posts', function (Blueprint $table) {
    $table->unsignedBigInteger('user_id');

    $table->foreign('user_id')->references('id')->on('users');
});
OR
Schema::table('posts', function (Blueprint $table) {
    $table->foreignId('user_id')->constrained();
});

Larael drop foreign key

Schema::table('posts', function (Blueprint $table) {
	$table->dropForeign(['category_id']);
});

Disable foreign key laravel

//...
class ClearOldOauthRelations extends Migration
{
    public function up()
    {
        Schema::disableForeignKeyConstraints();
        // drop foreign keys
        Schema::table('oauth_access_tokens', function (BluePrint $table) {
            $table->dropForeign('oauth_access_tokens_session_id_foreign');
        });
        //...
        Schema::enableForeignKeyConstraints();
    }
    //...
}

Source: stackoverflow.com

Remove foreign key constraint laravel

Schema::table('table_name', function (Blueprint $table) {
    $table->dropForeign(['foreign_key']);
    $table->dropColumn('column_key');
});

PS: usually foreign_key = column_key

ex: 

Schema::table('despatch_discrepancies', function (Blueprint $table) {
    $table->dropForeign(['pick_detail_id']);
    $table->dropColumn('pick_detail_id');
});

Source: stackoverflow.com

Laravel drop foreign key

// Primary table name, from Schema::table(<table>)
// Primary column, from $table->foreign(<column>)
$table->dropForeign('<table>_<column>_foreign');

Source: stackoverflow.com

Drop foreign key laravel

Schema::table('admins', function (Blueprint $table) {    $table->dropForeign('admins_post_id_foreign');    $table->dropColumn('post_id');});

Source: itsolutionstuff.com

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