I am new in YII, i just follow some tutorial and I want to drop one table and change some content. here is my first code :
public function safeUp()
{
//create the issue table
$this->createTable('tbl_issue', array(
'id' => 'pk',
'name' => 'string NOT NULL',
'description' => 'text',
'project_id' => 'int(11) DEFAULT NULL',
'type_id' => 'int(11) DEFAULT NULL',
'status_id' => 'int(11) DEFAULT NULL',
'owner_id' => 'int(11) DEFAULT NULL',
'requester_id' => 'int(11) DEFAULT NULL',
'create_time' => 'datetime DEFAULT NULL',
'create_user_id' => 'int(11) DEFAULT NULL',
'update_time' => 'datetime DEFAULT NULL',
'update_user_id' => 'int(11) DEFAULT NULL',
), 'ENGINE=InnoDB');
//create the user table
$this->createTable('tbl_user', array(
'id' => 'pk',
'username' => 'string NOT NULL',
'email' => 'string NOT NULL',
'password' => 'string NOT NULL',
'last_login_time' => 'datetime DEFAULT NULL',
'create_time' => 'datetime DEFAULT NULL',
'create_user_id' => 'int(11) DEFAULT NULL',
'update_time' => 'datetime DEFAULT NULL',
'update_user_id' => 'int(11) DEFAULT NULL',
), 'ENGINE=InnoDB');
//create the assignment table that allows for many-to-many relationship between projects and users
$this->createTable('tbl_project_user_assignment', array(
'project_id' => 'int(11) NOT NULL',
'user_id' => 'int(11) NOT NULL',
'PRIMARY KEY (`project_id`,`user_id`)',
), 'ENGINE=InnoDB');
//foreign key relationships
//the tbl_issue.project_id is a reference to tbl_project.id
$this->addForeignKey("fk_issue_project", "tbl_issue", "project_id", "tbl_project", "id", "CASCADE", "RESTRICT");
//the tbl_issue.owner_id is a reference to tbl_user.id
$this->addForeignKey("fk_issue_owner", "tbl_issue", "owner_id", "tbl_user", "id", "CASCADE", "RESTRICT");
//the tbl_issue.requester_id is a reference to tbl_user.id
$this->addForeignKey("fk_issue_requester", "tbl_issue", "requester_id", "tbl_user", "id", "CASCADE", "RESTRICT");
//the tbl_project_user_assignment.project_id is a reference to tbl_project.id
$this->addForeignKey("fk_project_user", "tbl_project_user_assignment", "project_id", "tbl_project", "id", "CASCADE", "RESTRICT");
//the tbl_project_user_assignment.user_id is a reference to tbl_user.id
$this->addForeignKey("fk_user_project", "tbl_project_user_assignment", "user_id", "tbl_user", "id", "CASCADE", "RESTRICT");
}
public function safeDown()
{
$this->truncateTable('tbl_project_user_assignment');
$this->truncateTable('tbl_issue');
$this->truncateTable('tbl_user');
$this->dropTable('tbl_project_user_assignment');
$this->dropTable('tbl_issue');
$this->dropTable('tbl_user');
}
first, I want to drop table tbl_project in different migration file…
-the code above have migration file name: m140429_062423_create_issue_user_and_assignment_tables.php
-the migration file name that have table tbl_project is m140416_105213_create_project_table.php
second,I want to drop table tbl_project_user_assignment and delete some content in other tables like project_id… ofcourse i want to remove the foreign releation with project_id too…
How do i do that? what migrate command i must use? thx before…