File: phptricksORM/DDL/Alter.php

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File: phptricksORM/DDL/Alter.php
Role: Class source
Content type: text/plain
Description: Class source
Class: PHP PDO database class
Access databases using PDO
Author: By
Last change: New Version (5.0.0)
Date: 7 months ago
Size: 2,995 bytes
 

Contents

Class file image Download
<?php
/**
 * *
 * * please don't remove this comment block
 * *
 * * @author phptricks Team - Mohammad Anzawi
 * * @author_uri https://phptricks.org
 * * @uri https://github.com/anzawi/php-database-class
 * * @version 5.0.0
 * * @licence MIT -> https://opensource.org/licenses/MIT
 * * @package PHPtricks\Orm
 *
 */

namespace PHPtricks\Orm\DDL;

/**
 * Trait Alter
 *
 * @package PHPtricks\Orm\DDL
 */
trait Alter
{

   
// "ALTER TABLE ADD COLUMN (COLUMN_NAME TYPE AND CONSTRAINT)"
    // "ALTER TABLE DROP COLUMN COLUMN_NAME"
    // "ALTER TABLE RENAME COLUMN (COLUMN_NAME TYPE AND CONSTRAINT)"
    //
    // table('table')->alterSchema(['add', 'column_name', 'type'])->alter();
    // table('table')->alterSchema(['drop', 'column_name'])->alter();
    // table('table')->alterSchema(['rename', 'column_name','new_name' ,'type'])->alter();
    // table('table')->alterSchema(['modify', 'column_name', 'new_type'])->alter();

    /**
     * @param array $schema
     *
     * @return $this|null
     */
   
public function alterSchema($schema = [])
    {
        if (
count($schema)) {
           
$function = $schema[0]."Column";

            unset(
$schema[0]);

           
call_user_func_array([$this, $function], [$schema]);

            return
$this;
        }

        return
null;
    }

   
/**
     * @return bool
     */
   
public function alter()
    {
       
// check if table is not exist
        // by default in (try catch) block we can detect this problem
        // but if you want to display a custom error message you can uncomment
        // this (if) block and set your error message
        /*if(!$this->tableExist($this->table()))
        {
            print ("Oops.. cant alter table {$this->table()} because is not Exists in "
                . config('host_name') . "/" . config("db_name"));
            die;
        }*/
       
try {
           
$this->_pdo->exec("ALTER TABLE {$this->table()} {$this->_schema}");
        } catch (\
PDOException $e) {
           
$this->setError($e->getMessage());

            return
false;
        }

        return
true;
    }

   
/**
     * @param array $options
     */
   
public function addColumn($options = [])
    {
        if (
count($options) === 2) {
           
$this->_schema = "ADD COLUMN {$options[1]} {$options[2]}";
        }
    }

   
/**
     * @param array $options
     */
   
public function dropColumn($options = [])
    {
        if (
count($options) === 1) {
           
$this->_schema = "DROP COLUMN {$options[1]}";
        }
    }

   
/**
     * @param array $options
     */
   
public function renameColumn($options = [])
    {
        if (
count($options) === 3) {
           
$this->_schema = "CHANGE {$options[1]} {$options[2]} {$options[3]}";
        }
    }

   
/**
     * @param array $options
     */
   
public function typeColumn($options = [])
    {
        if (
count($options) === 2) {
           
$this->_schema = "MODIFY {$options[1]} {$options[2]}";
        }
    }

}


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