/
Post.php
201 lines (182 loc) · 4.76 KB
/
Post.php
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
<?php
/**
* The followings are the available columns in table 'tbl_post':
* @property integer $id
* @property string $title
* @property string $content
* @property string $tags
* @property integer $status
* @property integer $create_time
* @property integer $update_time
* @property integer $author_id
*/
class Post extends CActiveRecord
{
const STATUS_DRAFT=1;
const STATUS_PUBLISHED=2;
const STATUS_ARCHIVED=3;
private $_oldTags;
/**
* Returns the static model of the specified AR class.
* @return static the static model class
*/
public static function model($className=__CLASS__)
{
return parent::model($className);
}
/**
* @return string the associated database table name
*/
public function tableName()
{
return '{{post}}';
}
/**
* @return array validation rules for model attributes.
*/
public function rules()
{
// NOTE: you should only define rules for those attributes that
// will receive user inputs.
return array(
array('title, content, status', 'required'),
array('status', 'in', 'range'=>array(1,2,3)),
array('title', 'length', 'max'=>128),
array('tags', 'match', 'pattern'=>'/^[\w\s,]+$/', 'message'=>'Tags can only contain word characters.'),
array('tags', 'normalizeTags'),
array('title, status', 'safe', 'on'=>'search'),
);
}
/**
* @return array relational rules.
*/
public function relations()
{
// NOTE: you may need to adjust the relation name and the related
// class name for the relations automatically generated below.
return array(
'author' => array(self::BELONGS_TO, 'User', 'author_id'),
'comments' => array(self::HAS_MANY, 'Comment', 'post_id', 'condition'=>'comments.status='.Comment::STATUS_APPROVED, 'order'=>'comments.create_time DESC'),
'commentCount' => array(self::STAT, 'Comment', 'post_id', 'condition'=>'status='.Comment::STATUS_APPROVED),
);
}
/**
* @return array customized attribute labels (name=>label)
*/
public function attributeLabels()
{
return array(
'id' => 'Id',
'title' => 'Title',
'content' => 'Content',
'tags' => 'Tags',
'status' => 'Status',
'create_time' => 'Create Time',
'update_time' => 'Update Time',
'author_id' => 'Author',
);
}
/**
* @return string the URL that shows the detail of the post
*/
public function getUrl()
{
return Yii::app()->createUrl('post/view', array(
'id'=>$this->id,
'title'=>$this->title,
));
}
/**
* @return array a list of links that point to the post list filtered by every tag of this post
*/
public function getTagLinks()
{
$links=array();
foreach(Tag::string2array($this->tags) as $tag)
$links[]=CHtml::link(CHtml::encode($tag), array('post/index', 'tag'=>$tag));
return $links;
}
/**
* Normalizes the user-entered tags.
*/
public function normalizeTags($attribute,$params)
{
$this->tags=Tag::array2string(array_unique(Tag::string2array($this->tags)));
}
/**
* Adds a new comment to this post.
* This method will set status and post_id of the comment accordingly.
* @param Comment the comment to be added
* @return boolean whether the comment is saved successfully
*/
public function addComment($comment)
{
if(Yii::app()->params['commentNeedApproval'])
$comment->status=Comment::STATUS_PENDING;
else
$comment->status=Comment::STATUS_APPROVED;
$comment->post_id=$this->id;
return $comment->save();
}
/**
* This is invoked when a record is populated with data from a find() call.
*/
protected function afterFind()
{
parent::afterFind();
$this->_oldTags=$this->tags;
}
/**
* This is invoked before the record is saved.
* @return boolean whether the record should be saved.
*/
protected function beforeSave()
{
if(parent::beforeSave())
{
if($this->isNewRecord)
{
$this->create_time=$this->update_time=time();
$this->author_id=Yii::app()->user->id;
}
else
$this->update_time=time();
return true;
}
else
return false;
}
/**
* This is invoked after the record is saved.
*/
protected function afterSave()
{
parent::afterSave();
Tag::model()->updateFrequency($this->_oldTags, $this->tags);
}
/**
* This is invoked after the record is deleted.
*/
protected function afterDelete()
{
parent::afterDelete();
Comment::model()->deleteAll('post_id='.$this->id);
Tag::model()->updateFrequency($this->tags, '');
}
/**
* Retrieves the list of posts based on the current search/filter conditions.
* @return CActiveDataProvider the data provider that can return the needed posts.
*/
public function search()
{
$criteria=new CDbCriteria;
$criteria->compare('title',$this->title,true);
$criteria->compare('status',$this->status);
return new CActiveDataProvider('Post', array(
'criteria'=>$criteria,
'sort'=>array(
'defaultOrder'=>'status, update_time DESC',
),
));
}
}