JOIN? ?? CakePHP? find ???? ???? ?? ????? ???? ???? ??? ??????
Oct 17, 2024 pm 10:34 PMRetrieve Data from Multiple Tables Using CakePHP's find Method with JOIN
To execute the specified SQL query using CakePHP's find method, you can employ two approaches:
Method 1: CakePHP Standard Approach
- Establish relationships between your models:
<code class="php">class User extends AppModel { public $actsAs = array('Containable'); public $hasMany = array('Message'); } class Message extends AppModel { public $actsAs = array('Containable'); public $belongsTo = array('User'); }</code>
- Define relationships properly:
- Rename messages.from column to messages.user_id for auto-association.
- Execute the query:
<code class="php">$this->Message->find('all', array( 'contain' => array('User') 'conditions' => array( 'Message.to' => 4 ), 'order' => 'Message.datetime DESC' ));</code>
Method 2: Custom Join
- Define custom join parameters:
<code class="php">$this->Message->find('all', array( 'joins' => array( array( 'table' => 'users', 'alias' => 'UserJoin', 'type' => 'INNER', 'conditions' => array( 'UserJoin.id = Message.from' ) ) ), 'conditions' => array( 'Message.to' => 4 ), 'fields' => array('UserJoin.*', 'Message.*'), 'order' => 'Message.datetime DESC' ));</code>
Using Multiple Relationships to the Same Model
You can establish two relationships to the same model:
<code class="php">class User extends AppModel { public $actsAs = array('Containable'); public $hasMany = array( 'MessagesSent' => array( 'className' => 'Message', 'foreignKey' => 'from' ) ); public $belongsTo = array( 'MessagesReceived' => array( 'className' => 'Message', 'foreignKey' => 'to' ) ); } class Message extends AppModel { public $actsAs = array('Containable'); public $belongsTo = array( 'UserFrom' => array( 'className' => 'User', 'foreignKey' => 'from' ) ); public $hasMany = array( 'UserTo' => array( 'className' => 'User', 'foreignKey' => 'to' ) ); }</code>
Example query:
<code class="php">$this->Message->find('all', array( 'contain' => array('UserFrom') 'conditions' => array( 'Message.to' => 4 ), 'order' => 'Message.datetime DESC' ));</code>
? ??? JOIN? ?? CakePHP? find ???? ???? ?? ????? ???? ???? ??? ??????? ?? ?????. ??? ??? PHP ??? ????? ?? ?? ??? ?????!

? AI ??

Undress AI Tool
??? ???? ??

Undresser.AI Undress
???? ?? ??? ??? ?? AI ?? ?

AI Clothes Remover
???? ?? ???? ??? AI ?????.

Clothoff.io
AI ? ???

Video Face Swap
??? ??? AI ?? ?? ??? ???? ?? ???? ??? ?? ????!

?? ??

??? ??

???++7.3.1
???? ?? ?? ?? ???

SublimeText3 ??? ??
??? ??, ???? ?? ????.

???? 13.0.1 ???
??? PHP ?? ?? ??

???? CS6
??? ? ?? ??

SublimeText3 Mac ??
? ??? ?? ?? ?????(SublimeText3)

????? ??? ????? ????? ??? ??? ???????. ?? ?? ??? ??? ????. 1. ??? 8 ?? ?????. 2. ??? ???, ??? ? ??? ?????. 3. ?? ?? ??? ?? ? ? ????. ?? ??? ????, ??? ???? ?? ? ??/?? ???? ?????, ?? PHP ?? ??? ?????. ???, ?????? ???? ?? ? 123456? ?? ???? ?? ??? ????????. ????? ?? ???? ????? ?? ZXCVBN ?????? ???? ?? ????.

PHP ?? ??? ?? ???? ?? ? ????? ??? ?????. 1. ?? ??? ??? ??? ??? ? ? ??? ??? ??? ?? ?? ??? ???? ???????. 2. ?? ??? ???? ???? ? ?? ????? ?? ?? ?? ??? ?????. 3. $ _get ? $ _post? ?? Hyperglobal ??? ?? ???? ?? ??? ? ??? ??? ??????? ???????. 4. ?? ?? ?? ???? ?? ?? ?? ??? ?????? ?? ??? ??? ?? ??? ???????. ??? ??? ????? ??? ??? ?? ???? ????? ? ??? ? ? ????.

PHP ?? ???? ???? ????? ?? ? ??? ???? ?? ?? ? ??? ???? ?? ??? ?????? ??? ??? ? ? ???????. 1. ??? ?? CSRF? ???? ?? ??? ??? ???? ?????? ??? ???? FINFO_FILE? ?? ?? MIME ??? ?????. 2. ??? ??? ??? ???? ??? ?? ??? ?? ? WEB ????? ??? ???? ??????. 3. PHP ?? ??? ?? ? ?? ???? NGINX/APACHE? ??? ????? ?? ???? ?????. 4. GD ?????? ??? ? ?? ???? ??? ?? ??? ?? ????.

PHP ?? ???? ? ?? ???? ??? ????. 1. // ?? #? ???? ? ?? ??? ???? // ???? ?? ????. 2. ?? /.../ ?? ?? ?? ??? ????? ?? ? ?? ??? ?? ? ? ????. 3. ?? ?? ?? / if () {} /? ?? ?? ??? ????? ??? ?? ?? ?? ??? ???? ????? ???? ??? ?? ???? ???? ??? ? ??? ??????.

Ageneratorinphpisamemory- ???? Way-Erate-Overgedatasetsetsbaluesoneatimeatimeatimeatimallatonce.1.generatorsuseTheyieldKeywordTocroadtOpvaluesondemand, RetingMemoryUsage.2

PHP ??? ???? ??? ??? ??? ????? ????. ??? ????? ?? ???? ??? "?? ? ?"??? "?"? ???????. 1. ??? ? ??? ??? DocBlock (/*/)? ?? ?? ??? ???? ??? ? ?? ???? ??????. 2. JS ??? ???? ?? ???? ??? ?? ??? ??? ?????. 3. ??? ?? ?? ?? ??? ???? ????? ????? ???? ?? ????? ???? ? ??????. 4. Todo ? Fixme? ????? ???? ? ? ??? ??? ???? ?? ?? ? ??? ???????. ??? ???? ?? ??? ??? ?? ?? ?? ???? ???? ? ????.

toinstallphpquickly, usexampponwindowsorhomebrewonmacos.1. ??, downloadandinstallxAmpp, selectComponents, startApache ? placefilesinhtdocs.2

tolearnpheffectical, startBysetTupaloCalserErverEnmentUsingToolslikexamppandacodeeditor -likevscode.1) installxamppforapache, mysql, andphp.2) useacodeeditorforsyntaxsupport.3)) 3) testimplephpfile.next, withpluclucincludechlucincluclucludechluclucled
