Add new columns to existing table in a migration in Laravel - php

Question

I want to add some new columns in my existing table users in laravel.
I have already googling for that and following those search I have already created migration using the command php artisan make:migration add_columns_to_users.
add_columns_to_users.php
public function up()
{
Schema::table('users', function($table) {
$table->string('address');
$table->string('city');
$table->string('tribe');
$table->string('country');
$table->integer('student_id');
$table->string('tribe_university_name');
$table->string('student_program_of_study');
$table->string('faculty');
$table->string('level');
});
}
public function down()
{
Schema::table('users', function($table) {
$table->dropColumn('address');
$table->dropColumn('city');
$table->dropColumn('tribe');
$table->dropColumn('country');
$table->dropColumn('student_id');
$table->dropColumn('tribe_university_name');
$table->dropColumn('faculty');
$table->dropColumn('level');
});
}
After creation, I run this command php artisan migrate.
But got the same error:
Base table or view already exists: 1050 Table 'users' already exists (SQL: create table users (id int unsigned not null auto_increment primary key, name varchar(255) not null, email varchar(255) not null, password varchar(255) not null, remember_token varchar(100) null, created_at timestamp null, updated_at timestamp null) default character set utf8 collate utf8_unicode_ci)
Full name of user table 2014_10_12_000000_create_users_table.php and the other name is 2019_04_11_074552_add_column_to_users.php
How to solve this?
My main query is How to add new columns in my existing table?

Answer 1

If you check at the error trace:
Base table or view already exists: 1050 Table 'users' already exists
This means that the users table already exists so when you run your migrations it is trying to create a table that is already created in your database.
Note: Don't forget to backup your database first
Delete users table from the database also delete users entries from migrations table.
After, execute the migrate Artisan command:php artisan migrate
Now another your Question is: How to add new columns in my existing table?
You have to create a table using this command:
php artisan make:migration create_users_table
The output you got it like this: Created Migration: 2019_04_12_070152_create_users_table
Your Migration structure is something this:
public function up()
{
Schema::create('users', function (Blueprint $table) {
$table->increments('id');
$table->string('name');
$table->string('email')->unique();
$table->string('password');
$table->rememberToken();
$table->timestamps();
});
}
Now you want to add new columns in your existing users table
php artisan make:migration add_phone_number_to_users_table --table=users
use the Schema::table() method (as you're accessing an existing table, not creating a new one). And you can add a column like this:
public function up()
{
Schema::table('users', function (Blueprint $table) {
$table->string('phonenumber')->after('name'); // use this for field after specific column.
});
}
/**
* Reverse the migrations.
*
* #return void
*/
public function down()
{
Schema::table('users', function (Blueprint $table) {
$table->dropColumn('phonenumber');
});
}
After, you can run your migrations: php artisan migrate
Your new columns(phonenumber) are now added to your existing users table, which you can view in your database.
If you have still any doubt, see this video

Answer 2

The problem comes from the php artisan migrate that will try to migrate both files when 2014_10_12_000000_create_users_table.php is already migrated, so IMO two possible solutions here :
Rollback the users table from the DB and rerun the migrate cmd.
Add the migration name inside the migrations table so the cmd will not try to run it for the second time.

Answer 3

Modifying current migration wont work, because it's entry in migration table is already there. So to make any changes in already existing table, you need to create new migration script.
// remember `create` replaced by `table` here
Schema::table('users', function (Blueprint $table) {
// add whichever new columns you want to
});
Follow these steps,
php artisan make:migrate modify_user_table
open modify_user_table file in database/migrations directory
Add new columns as at top I wrote.
Now save the file after adding new columns into new migration file
cmd -> php artisan migrate
EDIT
If there is no user data then Open 2014_10_12_000000_create_users_table.php file and add Schema::dropIfExists('users'); before Schema::create('users'... line.
If there is data then you can take a backup, again follow the above step 1.

Answer 4

You need do little modification in your artisan command
artisan make:migration add_columns_to_users_table
You then need to use the
Schema::table() method (as you're accessing an existing table, not creating a new one). And you can add a column like this
public function up()
{
Schema::table('users', function($table) {
$table->type('column');
});
}
add the rollback option:
public function down()
{
Schema::table('users', function($table) {
$table->dropColumn('column');
});
}
Then you can run your migrations:
php artisan migrate

Answer 5

Please do the step 1.
php artisan migrate:reset
Step 2: Go to your database using PHPmyadmin (or similar) and delete all remaining tables
including the migration table.
After all please do Step 3 php artisan migrate

Answer 6

You probably got the error because you tried to create another Users table, which is already exist on your database. That could be the reason why you find error Base table or view already exists: 1050 Table 'users' already exists.
So, the solution is try to alter you existing Users table, instead to run another syntax to create and override Users table. By create another alter class inside your data migration folder. It used to be inside your modules folder on your Laravel Project (../database/migrations/).
After you find the directory, create new alter class. For example, alter_users_table.php.
So, if you would like to add another column (e.g.: age column, with type int, nullable) on your Users table, you could code like this on alter_users_table.php:
class AlterUsersAddAge extends Migration
{
/**
* Run the migrations.
*
* #return void
*/
public function up()
{
Schema::table('Users', function (Blueprint $table) {
$table->int('age')->nullable();
});
}
/**
* Reverse the migrations.
*
* #return void
*/
public function down()
{
Schema::table('Users', function (Blueprint $table) {
$table->dropColumn('age');
});
}
}
After that, try to run php artisan migrate on your terminal.
Now you should see another new column age on your Users table.