I am trying to make some relationships between some tables but have an error that states..
Illuminate\Database\QueryException : SQLSTATE[42000]: Syntax error or
access violation: 1064 You have an error in your SQL syntax; check
the manual that corresponds to your MySQL server version for the
right syntax to use near ')' at line 1 (SQL: alter table users add
constraint users_board_id_foreign foreign key (board_id)
references `` ())
class CreateUsersTable extends Migration
{
/**
* Run the migrations.
*
* #return void
*/
public function up()
{
Schema::create('users', function (Blueprint $table) {
$table->increments('id');
$table->string('name');
$table->string('email')->unique();
$table->string('password');
$table->foreign('board_id')->unsigned();
$table->foreign('board_id')->references('id')->on('boards');
$table->foreign('message_id')->references('id')->on('messages');
$table->foreign('message_id')->unsigned();
$table->rememberToken();
$table->timestamps();
});
}
/**
* Reverse the migrations.
*
* #return void
*/
public function down()
{
Schema::dropIfExists('users');
}
This table is supposed to be related to this table...
<?php
use Illuminate\Support\Facades\Schema;
use Illuminate\Database\Schema\Blueprint;
use Illuminate\Database\Migrations\Migration;
class CreateBoardsTable extends Migration
{
/**
* Run the migrations.
*
* #return void
*/
public function up()
{
Schema::create('boards', function (Blueprint $table) {
$table->increments('id');
$table->string('name', 100)->unique();
$table->foreign('user_id')->unsigned();
$table->foreign('user_id')->references('id')->on('users');
$table->foreign('link_id')->unsigned();
$table->foreign('link_id')->references('id')->on('links');
$table->foreign('message_id')->unsigned();
$table->foreign('message_id')->references('id')->on('messages');
$table->foreign('tag_id')->unsigned();
$table->foreign('tag_id')->references('id')->on('tags');
$table->timestamps();
});
}
/**
* Reverse the migrations.
*
* #return void
*/
public function down()
{
Schema::dropIfExists('boards');
}
}
I've already drop the table and the schema and started fresh and still get the same error! Please be kind :!
Try this one:
// USERS
class CreateUsersTable extends Migration
{
/**
* Run the migrations.
*
* #return void
*/
public function up()
{
Schema::create('users', function (Blueprint $table) {
$table->increments('id');
$table->string('name');
$table->string('email')->unique();
$table->string('password');
$table->integer('board_id')->unsigned();
$table->foreign('board_id')->references('id')->on('boards');
$table->integer('message_id')->unsigned();
$table->foreign('message_id')->references('id')->on('messages');
$table->rememberToken();
$table->timestamps();
});
}
/**
* Reverse the migrations.
*
* #return void
*/
public function down()
{
Schema::dropIfExists('users');
}
//BOARDS
use Illuminate\Support\Facades\Schema;
use Illuminate\Database\Schema\Blueprint;
use Illuminate\Database\Migrations\Migration;
class CreateBoardsTable extends Migration
{
/**
* Run the migrations.
*
* #return void
*/
public function up()
{
Schema::create('boards', function (Blueprint $table) {
$table->increments('id');
$table->string('name', 100)->unique();
$table->integer('user_id')->unsigned();
$table->foreign('user_id')->references('id')->on('users');
$table->integer('link_id')->unsigned();
$table->foreign('link_id')->references('id')->on('links');
$table->integer('message_id')->unsigned();
$table->foreign('message_id')->references('id')->on('messages');
$table->integer('tag_id')->unsigned();
$table->foreign('tag_id')->references('id')->on('tags');
$table->timestamps();
});
}
/**
* Reverse the migrations.
*
* #return void
*/
public function down()
{
Schema::dropIfExists('boards');
}
}
You can't define columns with foreign():
$table->integer('board_id')->unsigned();
$table->foreign('board_id')->references('id')->on('boards');
$table->integer('message_id')->unsigned();
$table->foreign('message_id')->references('id')->on('messages');
The same goes for the boards migration.
I experienced very alike situation, my schema
`
public function up() {
Schema::dropIfExists('countries_states');
Schema::create('countries_states', function (Blueprint $table) {
$table->id();
$table->foreignId('country_id')->unsigned();
$table->foreign('country_id')->references('id')->on('countries');
$table->string('state', 30);
$table->string('abbr', 30);
});
//Schema::enableForeignKeyConstraints();
}
`
And I had the same
I solved it by granting access to specific user for specific database and voila - everything started to function like charm
Related
Im currently reffering a ecommerce lesson using laravel 8.when creating categories for the products im keep getting this error message while migrating.
SQLSTATE[23000]: Integrity constraint violation: 1451 Cannot delete or update a parent row: a foreign key constraint fails (SQL: drop table if exists products)
This is my create_products_table
<?php
use Illuminate\Database\Migrations\Migration;
use Illuminate\Database\Schema\Blueprint;
use Illuminate\Support\Facades\Schema;
class CreateProductsTable extends Migration
{
/**
* Run the migrations.
*
* #return void
*/
public function up()
{
Schema::create('products', function (Blueprint $table) {
$table->increments('id');
$table->timestamps();
$table->string('name');
$table->string('slug');
$table->text('description');
$table->integer('price');
});
}
/**
* Reverse the migrations.
*
* #return void
*/
public function down()
{
Schema::dropIfExists('products');
}
}
and here is create_category_product_table
<?php
use Illuminate\Database\Migrations\Migration;
use Illuminate\Database\Schema\Blueprint;
use Illuminate\Support\Facades\Schema;
class CreateCategoryProductTable extends Migration
{
/**
* Run the migrations.
*
* #return void
*/
public function up()
{
Schema::create('category_product', function (Blueprint $table) {
$table->increments('id');
$table->integer('product_id')->unsigned()->nullable();
$table->foreign('product_id')->references('id')->on('products')->onDelete('cascade');
$table->integer('category_id')->unsigned()->nullable();
$table->foreign('category_id')->references('id')->on('category')->onDelete('cascade');
$table->timestamps();
});
}
/**
* Reverse the migrations.
*
* #return void
*/
public function down()
{
Schema::dropIfExists('category_product');
}
}
Much appreciate if someone can teach me to solve this. Thank You!
<?php
use Illuminate\Database\Migrations\Migration;
use Illuminate\Database\Schema\Blueprint;
use Illuminate\Support\Facades\Schema;
class CreatePostsTable extends Migration
{
/**
* Run the migrations.
*
* #return void
*/
public function up()
{
Schema::create('posts', function (Blueprint $table) {
$table->bogIncrements('id');
$table->unsignedBigInteger('user_id');
$table->string('caption');
$table->string('image');
$table->timestamps();
$table->index('user_id');
});
}
/**
* Reverse the migrations.
*
* #return void
*/
public function down()
{
Schema::dropIfExists('posts');
}
}
$table->bogIncrements('id'); typo in here.
Permissions file does exist on the folder though. Why this error is showing.
In Connection.php line 647:
SQLSTATE[42S02]: Base table or view not found: 1146 Table
'prj_oxbir.permissions' doesn't exist (SQL: select * from
permissions)
In Connection.php line 319:
SQLSTATE[42S02]: Base table or view not found: 1146 Table
'prj_oxbir.permissions' doesn't exist
createrolestable.php
use Illuminate\Support\Facades\Schema;
use Illuminate\Database\Schema\Blueprint;
use Illuminate\Database\Migrations\Migration;
class CreateRolesTable extends Migration
{
/**
* Run the migrations.
*
* #return void
*/
public function up()
{
Schema::create('roles', function (Blueprint $table) {
$table->increments('id');
$table->string('name');
$table->string('label')->nullable();
$table->timestamps();
});
Schema::create('permissions', function (Blueprint $table) {
$table->increments('id');
$table->string('name');
$table->string('label')->nullable();
$table->timestamps();
});
Schema::create('permission_role', function (Blueprint $table) {
$table->integer('role_id')->unsigned();
$table->foreign('role_id')->references('id')->on('roles')->onDelete('cascade');
$table->integer('permission_id')->unsigned();
$table->foreign('permission_id')->references('id')->on('permissions')->onDelete('cascade');
$table->primary(['role_id' , 'permission_id']);
});
Schema::create('role_user', function (Blueprint $table) {
$table->integer('role_id')->unsigned();
$table->foreign('role_id')->references('id')->on('roles')->onDelete('cascade');
$table->integer('user_id')->unsigned();
$table->foreign('user_id')->references('id')->on('users')->onDelete('cascade');
$table->primary(['role_id' , 'user_id']);
});
}
/**
* Reverse the migrations.
*
* #return void
*/
public function down()
{
Schema::dropIfExists('roles');
}
}
First of all, make sure table permissions exist in the database.
Secondly, create a separate migrations for permissions table.
hope this helps.
Can anyone help me ?? i am stuck in setting foreign key Constraint.
I am getting
ERROR:foreign key constraint violation: Can't add/update a child row.
I am having a users,Projects,hours,tasks and sub-tasks table.
I have created migrations for tables in this order
1.Users 2.Projects 3.Hours 4.Tasks 5.Sub-tasks
After these migrations, I created a new migration in which I added five new fields into hours table 3 fields for hours and two foreign keys from tasks and sub-tasks table i-e task_id and subtask_id.
i have already made foreign keys unsigned(), and these foreign keys are the same as in parent tables.
i have searched alot but most of replies says that you are creating child table before parent table or something like this.
Hours Migration
class CreateHoursTable extends Migration
{
/**
* Run the migrations.
*
* #return void
*/
public function up()
{
Schema::create('hours', function (Blueprint $table) {
$table->increments('id');
$table->string('actual_hours');
$table->string('productive_hours');
$table->integer('project_id')->unsigned();
$table->foreign('project_id')
->references('id')
->on('projects')
->onDelete('cascade');
$table->timestamps();
});
}
/**
* Reverse the migrations.
*
* #return void
*/
public function down()
{
Schema::drop('hours');
}
}
Tasks migration:
class CreateTasksTable extends Migration
{
/**
* Run the migrations.
*
* #return void
*/
public function up()
{
Schema::create('tasks', function (Blueprint $table) {
$table->increments('id');
/* Relations Table Field Starts */
$table->integer('project_id')->unsigned();
$table->foreign('project_id')
->references('id')
->on('projects')
->onDelete('cascade');
/* Relations Table Field Ends */
$table->string('name');
$table->string('key');
$table->text('description');
$table->integer('percentDone');
$table->date('duedate');
$table->integer('reporter');
$table->integer('follower');
$table->string('tags');
/*Task ENUM Fields Starts*/
$table->enum('types', ['New Feature','Bug','Improvement','Task']);
$table->enum('priority', ['Blocker','Minor','Major','Trivial','Critical']);
$table->enum('workflow', ['Todo','In Progress','In QA','Completed']);
$table->enum('component', ['Web','Android','IOS']);
/*Task ENUM Fields Starts*/
$table->timestamps();
});
}
/**
* Reverse the migrations.
*
* #return void
*/
public function down()
{
Schema::drop('tasks');
}
}
Sub-tasks Migration:
class CreateSubtasksTable extends Migration
{
/**
* Run the migrations.
*
* #return void
*/
public function up()
{
Schema::create('subtasks', function (Blueprint $table) {
$table->increments('id');
/* Relations Table Field */
$table->integer('user_id')->unsigned();
$table->foreign('user_id')
->references('id')
->on('users')
->onDelete('cascade');
$table->integer('task_id')->unsigned();
$table->foreign('task_id')
->references('id')
->on('tasks')
->onDelete('cascade');
$table->string('name');
$table->text('description');
$table->integer('percentDone');
$table->date('duedate');
$table->string('reporter');
$table->string('follower');
$table->string('tags');
$table->enum('priority', ['Blocker','Minor','Major','Trivial','Critical']);
$table->enum('Workflow', ['Todo','In Progress','In QA','Completed']);
$table->timestamps();
});
}
/**
* Reverse the migrations.
*
* #return void
*/
public function down()
{
Schema::drop('subtasks');
}
}
Migration To Add New Fields in Hours Table:
class AlterTableHoursAddColumnsHours extends Migration
{
/**
* Run the migrations.
*
* #return void
*/
public function up()
{
Schema::table('hours', function (Blueprint $table) {
$table->integer('estimated_hours');
$table->integer('internal_hours');
$table->integer('consumed_hours');
/*Now Fields for Task And Subtask Tables Starts*/
$table->integer('task_id')->unsigned();
$table->foreign('task_id')
->references('id')
->on('tasks')
->onDelete('cascade');
$table->integer('subtask_id')->unsigned();
$table->foreign('subtask_id')
->references('id')
->on('subtasks')
->onDelete('cascade');
/*Now Fields for Task And Subtask Tables Ends*/
});
}
/**
* Reverse the migrations.
*
* #return void
*/
public function down()
{
Schema::table('hours', function (Blueprint $table) {
$table->dropColumn('estimated_hours');
$table->dropColumn('internal_hours');
$table->dropColumn('consumed_hours');
$table->dropForeign('hours_task_id_foreign');
$table->dropColumn('task_id');
$table->dropForeign('hours_subtask_id_foreign');
$table->dropColumn('subtask_id');
});
}
}
Is this because i created hours table before Tasks and Sub-tasks table. ??? Any Solution ?? Any Help ??
Need Help guys! Whats wrong with my migrations, It's not creating a relationship between users table and posts table. Here's what I did:
migrate users table
create posts table
migrate posts table with foreign key
Users Migration:
<?php
use Illuminate\Database\Schema\Blueprint;
use Illuminate\Database\Migrations\Migration;
class CreateUsersTable extends Migration
{
/**
* Run the migrations.
*
* #return void
*/
public function up()
{
Schema::create('users', function (Blueprint $table) {
$table->increments('id');
$table->string('name');
$table->string('email')->unique();
$table->string('password', 60);
$table->rememberToken();
$table->timestamps();
});
}
/**
* Reverse the migrations.
*
* #return void
*/
public function down()
{
Schema::drop('users');
}
}
Posts Migration:
<?php
use Illuminate\Database\Schema\Blueprint;
use Illuminate\Database\Migrations\Migration;
class CreatePostsTable extends Migration
{
/**
* Run the migrations.
*
* #return void
*/
public function up()
{
Schema::create('posts', function (Blueprint $table) {
$table->increments('id');
$table->integer('user_id')->unsigned();
$table->string('title', 255);
$table->text('content');
$table->timestamps();
$table->foreign('user_id')->references('id')->on('users')->onDelete('cascade');
});
}
/**
* Reverse the migrations.
*
* #return void
*/
public function down()
{
Schema::drop('posts');
}
}
Nothing Happen with my database. Take a look at my database:
Compared with this:
.. I'm using Laravel 5.1
You need to add it in two step. Schema::create() is only used to create table.
To add relation you need to write it within Schema::table().
Try following :
In CreatePostsTable :
public function up()
{
Schema::create('posts', function (Blueprint $table) {
$table->increments('id');
$table->integer('user_id')->unsigned();
$table->string('title', 255);
$table->text('content');
$table->timestamps();
});
Schema::table('posts', function($table) {
$table->foreign('user_id')->references('id')->on('users')->onDelete('cascade');
});
}