foreign key in laravel migration
$table->unsignedBigInteger('user_id');
$table->foreign('user_id')->references('id')->on('users')->onDelete('cascade');foreign key in laravel migration
$table->unsignedBigInteger('user_id');
$table->foreign('user_id')->references('id')->on('users')->onDelete('cascade');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();
});create foreign key laravel migration
Schema::table('posts', function (Blueprint $table) {
$table->unsignedBigInteger('user_id');
$table->foreign('user_id')->references('id')->on('users');
});laravel change foreign key name
//Note : Before Renaming Foreign, You Must Need To Delete Old Foreign And Assign New One
class RenameColumn extends Migration
{
public function up()
{
Schema::table('holidays', function(Blueprint $table) {
$table->dropForeign('holidays_account_id_foreign');
$table->renameColumn('account_id ', 'engagement_id');
$table->foreign('account_id')->references('id')->on('accounts')->onDelete('cascade');
});
}
public function down()
{
Schema::table('holidays', function(Blueprint $table) {
$table->dropForeign('holidays_engagement_id_foreign');
$table->renameColumn('account_id ', 'engagement_id');
$table->foreign('account_id')->references('id')->on('accounts')->onDelete('cascade');
});
}
}Laravel adding Foreign Key Constraints
$table->foreignId('user_id')
->constrained("users") <- // You don't need to specify table if it matched laravel naming conventions.
->onUpdate('cascade')
->onDelete('cascade');foreign key string laravel
Schema::table('portfolios', function (Blueprint $table) {
$table->string('filter_alias');
$table->foreign('filter_alias')->cascadeOnDelete()->references('alias')->on('filters');
});Copyright © 2021 Codeinu
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