<?php

use think\migration\Migrator;
use think\migration\db\Column;

class AddColumnLiveToFishLive extends Migrator
{
    /**
     * Change Method.
     *
     * Write your reversible migrations using this method.
     *
     * More information on writing migrations is available here:
     * http://docs.phinx.org/en/latest/migrations.html#the-abstractmigration-class
     *
     * The following commands can be used in this method and Phinx will
     * automatically reverse them when rolling back:
     *
     *    createTable
     *    renameTable
     *    addColumn
     *    renameColumn
     *    addIndex
     *    addForeignKey
     *
     * Remember to call "create()" or "update()" and NOT "save()" when working
     * with the Table class.
     */
    public function change()
    {
        if ( !$this->table('fish_live')->hasColumn('live_avg_watch_duration')){
            $this->table('fish_live')
                ->addColumn('live_avg_watch_duration', 'string', array('limit'  => 100,'null' => true, 'default'=>'', 'comment'=>'人均停留时长'))->update();
        }
        if ( !$this->table('fish_live')->hasColumn('live_comment_count')){
            $this->table('fish_live')->addColumn('live_comment_count','integer', ['limit'=> 11, 'default'=> 0, 'comment'=> '评论数'])->update();
        }
        if ( !$this->table('fish_live')->hasColumn('live_follow_count')){
            $this->table('fish_live')->addColumn('live_follow_count','integer', ['limit'=> 11, 'default'=> 0, 'comment'=> '关注数'])->update();
        }
        if ( !$this->table('fish_live')->hasColumn('live_share_count')){
            $this->table('fish_live')->addColumn('live_share_count','integer', ['limit'=> 11, 'default'=> 0, 'comment'=> '分享数'])->update();
        }
        if ( !$this->table('fish_live')->hasColumn('live_count')){
            $this->table('fish_live')->addColumn('live_count','integer', ['limit'=> 10, 'default'=> 0, 'comment'=> '直播场次'])->update();
        }
    }
}