我正试图将一个变量传递给视图以进行输出，这样做会引发以下错误：未定义的变量：属性(视图：
我知道错误是因为视图中没有拾取变量，但我不知道为什么这里是我的代码
定义$property的控制器：
<?php
namespace App'Http'Controllers;
use Datatable;
use View;
use App'Models'EC2Instance;
use App'Models'ChangedProperties;
use Illuminate'Support'Facades'Input;
use App'Models'ChangelogItem;
class DetailsController extends Controller {
protected $layout = 'ec2_instance';
public function changedproperties($resource_id, $resource_type) {
$changed_property = new ChangedProperties;
$changed_properties = $changed_property->where('resource_id', $resource_id)->where('resource_type', $resouce_type);
}
public function details($instance_id) {
$instance = new EC2Instance;
$instance_obj = $instance->where('instance_id', $instance_id)->first();
$property = new ChangelogItem;
$properties = $property->where('resource_id', $instance_obj->id)->where('resource_type', 'ec2instance');
//
$table = Datatable::table()
->addColumn(
'Changed Property', 'Change Type', 'Previous Value', 'Updated Value'
)
->setUrl('/ec2_instance/ec2instance/' . $instance_obj->id)
->noScript();
return View::make('ec2_instance')->with('instance', $instance_obj, $properties)->with('table', $table);
}
public function instance_details($resource_type, $resource_id) {
$query = ChangelogItem::select(array('message_id',
'type',
'changelog_item_id',
'created_at',
'updated_at',
'description'))
->where('resource_id', $resource_id)->where('resource_type', $resource_type)->get();
return Datatable::collection($query)
->addColumn('message_id', function($model) {
$link2 = "<a href = '/changed_properties/" . $model->message_id . "' >" . $model->message_id . "</a>";
return $link2;
})
->showColumns(
'message_id', 'type', 'changelog_item_id', 'created_at', 'updated_at', 'description')
->searchColumns('message_id', 'type', 'changelog_item_id', 'created_at', 'updated_at', 'description')
->orderColumns('message_id', 'type', 'changelog_item_id', 'created_at', 'updated_at', 'description'
)
->make();
}
}
并查看
<!doctype html>
<html lang="en">
<head>
<title>Instance Details </title>
{!!HTML::style("css/jquery.dataTables.css")!!}
{!!HTML::script("js/jquery.js")!!}
{!!HTML::script("js/jquery.dataTables.min.js")!!}
<meta charset="UTF-8">
<title>Config Search</title>
<style>
@import url(//fonts.googleapis.com/css?family=Raleway:700);
body {
margin:0;
font-family:'Raleway', sans-serif;
text-align:center;
color: #3a3a3d;
}
.welcome {
width: 300px;
height: 200px;
position: absolute;
left: 50%;
top: 50%;
margin-left: -150px;
margin-top: -100px;
}
a, a:visited {
text-decoration:none;
}
h1 {
font-size: 32px;
margin: 16px 0 0 0;
}
</style>
</head>
<body>
<div class="navigation-left" style="float:left">
<a href="{!! url('/') !!}">Back </a>
</div>
<div class="row">
<div class="col-md-12">
<h3>Instance Details {!! $instance->instance_id !!}</h3>
<script language="Javascript">
function formatAsUKDate(date) {
var date = new Date();
var day = padWithZero(date.getDate(), 2);
var month = padWithZero(date.getMonth() + 1, 2);
var year = date.getFullYear();
var hour = date.getHours();
if (hour <= 9)
hour = '0' + hour;
var mins = date.getMinutes();
if (mins <= 9)
mins = '0' + mins;
return day + '/' + month + '/' + year + ' ' + hour + ':' + mins;
}
function padWithZero(str, minLength) {
str = String(str);
while (str.length < minLength) {
str = '0' + str;
}
return str;
}
document.write("last refreshed: " + formatAsUKDate(document.lastModified) + "");
</SCRIPT>
</div>
<table>
<tr><th>Instance ID</th><td>{!! $instance->instance_id !!}</td></tr>
<tr><th>Image ID</th><td>{!! $instance->image_id !!}</td></tr>
<tr><th>Private DNS Name</th><td>{!! $instance->private_dns_name !!}</td></tr>
<tr><th>Public DNS Name</th><td>{!! $instance->public_dns_name !!}</td></tr>
<tr><th>Key Name</th><td>{!! $instance->key_name !!}</td></tr>
<tr><th>Instance Type</th><td>{!! $instance->instance_type !!}</td></tr>
<tr><th>Launch Time</th><td>{!! $instance->launch_time !!}</td></tr>
<tr><th>Kernel ID</th><td>{!! $instance->kernel_id !!}</td></tr>
<tr><th>Subnet ID</th><td>{!! $instance->subnet_id !!}</td></tr>
<tr><th>VPC ID</th><td>{!! $instance->vpc_id !!}</td></tr>
<tr><th>Private IP Address</th><td>{!! $instance->private_ip_address !!}</td></tr>
<tr><th>Public IP Address</th><td>{!! $instance->public_ip_address !!}</td></tr>
<tr><th>Architecture</th><td>{!! $instance->architecture !!}</td></tr>
<tr><th>Root Device Type</th><td>{!! $instance->root_device_type !!}</td></tr>
<tr><th>Root Device Name</th><td>{!! $instance->root_device_name !!}</td></tr>
<tr><th>Virtualization Type</th><td>{!! $instance->virtualization_type !!}</td></tr>
<tr><th>Source Dest Check</th><td>{!! $instance->source_dest_check !!}</td></tr>
</table>
</div>
<table
<tr><th>Message ID</th><td>{!! $property->message_id !!}</td></tr>
<tr><th>Type</th><td>{!! $property->type !!}</td></tr>
<tr><th>Changelog Item ID</th><td>{!! $property->changelog_item_id !!}</td></tr>
<tr><th>Created</th><td>{!! $property->created_at !!}</td></tr>
<tr><th>Updated</th><td>{!! $property->updated_at !!}</td></tr>
<tr><th>Description</th><td>{!! $property->description !!}</td></tr>
</table>
{!! $table->render() !!}
{!! $table->script() !!}
</body>
</html>
已找到$instance，但未找到$property。
这是因为您没有在视图中传递它看看这里
return View::make('ec2_instance')->with('instance', $instance_obj, $properties)->with('table', $table);
我认为它应该像这个
return View::make('ec2_instance')
->with('instance', $instance_obj)
->with('property', $property)
->with('table', $table);
此外，你似乎并没有从这里的数据库中获取一些东西
$properties = $property->where('resource_id', $instance_obj->id)->where('resource_type', 'ec2instance');
如果您希望实例返回，则此查询应以first()方法结束
如果希望返回集合，则为get()。