我试图在Vue中遍历一个二维数组,但是我总是得到一个Property or method "currentItem" is not defined on the instance but referenced during render错误。我有以下模板:
<template>
<div id="cashDeskLeft">
<input type="search" class="myInput" id="searchDishInput" v-mode
我正在进行一个迁移,其中我有一个表A,我将它分成表B和表C。我的(简化的)迁移脚本是:
from alembic import op
con = op.get_bind()
items = con.execute("SELECT * FROM public.A")
for item in items:
B_id = item.b
C_id = item.c
some_attributes = item.some_attributes
some_other_attributes = item.some_other_attributes
c
App\Customer有许多App\User的典型情况
Customer.php
<?php
namespace App;
use Illuminate\Database\Eloquent\Model;
class Customer extends Model
{
public function users()
{
return $this->hasMany('App\User');
}
public function getUserCountAttribute()
{
return
我继承了另一个具有历史表的项目。这些表如下所示,它们位于no delete SQL Server数据库中。
注意:每个表都是一对表。每个表都有一个父表和子表。
tBooks
id
created_at
updated_at
deleted_at (if this has a date, entire record and all children considered deleted)
tBookDetails
id
book_id (FK to tBooks id column)
... (related book data)
created_at
updated_at
deleted_at
我想要创建一个视图来显示class_meets信息以获取更多的信息,我想从已经尝试过hasOneTrough、hasManyTrough和belongsToMany的表主题中显示主题名称,但是这就像函数只显示从subject到class_meets,而我需要的正好相反。
想要在ClassMeet模型上添加一些功能
下面是我的列表模型:
Subject
class Subject extends Model
{
use SoftDeletes;
public $table = 'subjects';
protected $dates = ['cre
user_enabled_notifications表有2行数据。我想获取id列中的所有值。
$notificationData = UserEnabledNotifications::all();
dump($notificationData['id']);显示Undefined index: id
dump($notificationData->id);显示Property [id] does not exist on this collection instance
dump($notificationData[0]['id']);只显示一个id。我