cakephp: расширить модельный класс для переопределения методов нумерации страниц - PullRequest
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cakephp: расширить модельный класс для переопределения методов нумерации страниц

0 голосов
/ 12 августа 2011

Последние два дня я потратил на поиски решения проблемы с нумерацией страниц в cakephp.

Короче говоря, мне нужны разные методы нумерации страниц для одной и той же модели.Действие index будет использовать метод по умолчанию, а действие view будет использовать метод с пользовательским запросом.

Основываясь на концепции наследования ООП, я подумал, что решением было расширить мою модель и переопределить метод разбиения на страницы нарасширенная модель.Итак, я могу вызвать из контроллера метод разбиения на страницы по умолчанию для действия index и пользовательские методы для действия view.

Вопрос: как я могу расширить свой класс модели?Будет ли работать эта идея?

это моя модель: 

<?php
class Communication extends AppModel {

var $name = 'Communication';
var $displayField = 'title';

//The Associations below have been created with all possible keys, those that are not needed can be removed

var $hasMany = array(
    'Interaction' => array(
        'className' => 'Interaction',
        'foreignKey' => 'communication_id',
        'dependent' => false,
        'conditions' => '',
        'fields' => '',
        'order' => '',
        'limit' => '',
        'offset' => '',
        'exclusive' => '',
        'finderQuery' => '',
        'counterQuery' => ''
    ),
    'Star' => array(
        'className' => 'Star',
        'foreignKey' => 'communication_id',
        'dependent' => false,
        'conditions' => '',
        'fields' => '',
        'order' => '',
        'limit' => '',
        'offset' => '',
        'exclusive' => '',
        'finderQuery' => '',
        'counterQuery' => ''
    )
);

var $hasAndBelongsToMany = array(
    'Document' => array(
        'className' => 'Document',
        'joinTable' => 'communications_documents',
        'foreignKey' => 'communication_id',
        'associationForeignKey' => 'document_id',
        'unique' => true,
        'conditions' => '',
        'fields' => '',
        'order' => '',
        'limit' => '',
        'offset' => '',
        'finderQuery' => '',
        'deleteQuery' => '',
        'insertQuery' => ''
    ),
    'Event' => array(
        'className' => 'Event',
        'joinTable' => 'communications_events',
        'foreignKey' => 'communication_id',
        'associationForeignKey' => 'event_id',
        'unique' => true,
        'conditions' => '',
        'fields' => '',
        'order' => '',
        'limit' => '',
        'offset' => '',
        'finderQuery' => '',
        'deleteQuery' => '',
        'insertQuery' => ''
    ),
    'Meeting' => array(
        'className' => 'Meeting',
        'joinTable' => 'communications_meetings',
        'foreignKey' => 'communication_id',
        'associationForeignKey' => 'meeting_id',
        'unique' => true,
        'conditions' => '',
        'fields' => '',
        'order' => 'date_create DESC',
        'limit' => '',
        'offset' => '',
        'finderQuery' => '',
        'deleteQuery' => '',
        'insertQuery' => ''
    ),
    'User' => array(
        'className' => 'User',
        'joinTable' => 'communications_users',
        'foreignKey' => 'communication_id',
        'associationForeignKey' => 'user_id',
        'unique' => true,
        'conditions' => '',
        'fields' => '',
        'order' => 'name',
        'limit' => '',
        'offset' => '',
        'finderQuery' => '',
        'deleteQuery' => '',
        'insertQuery' => ''
    )
);

function getComInfos($id) {

    $this->unbindModel(array('hasAndBelongsToMany'=>array('Document','Event','Meeting')));
    $this->unbindModel(array('hasMany'=>array('Star','Interaction')));
    $communication_infos = $this->read(null, $id);

    //debug($communication_infos);

    return $communication_infos;

}

function getComLinks($id) {

    $communication_links = $this->query("
    SELECT 'documents' AS 'type', 'D' AS 'marker', d.id AS id, d.date_create AS date, du.user_id AS info_aux, d.title AS title, d.desc AS content 
    FROM communications_documents AS cd
    JOIN documents AS d ON d.id = cd.document_id
    JOIN documents_users AS du ON du.document_id = d.id
    WHERE cd.communication_id = ".$id."

    UNION

    SELECT 'events' AS 'type', 'E' AS 'marker', e.id AS id, e.date_create AS date, e.institution AS info_aux, e.title AS title, e.desc AS content
    FROM communications_events AS ce
    JOIN events AS e ON e.id = ce.event_id
    WHERE ce.communication_id =".$id."

    UNION

    SELECT 'meetings' AS 'type', 'R' AS 'marker', m.id AS id, m.date_create AS date, m.site AS info_aux, m.title AS title, m.desc AS content
    FROM communications_meetings AS cm
    JOIN meetings AS m ON m.id = cm.meeting_id
    WHERE cm.communication_id =".$id."

    UNION

    SELECT 'interactions' AS 'type', 'C' AS 'marker', i.id AS id, i.date_create AS date, i.user_id AS info_aux, i.title AS title, i.content AS content
    FROM interactions AS i
    WHERE i.communication_id =".$id."

    ORDER BY date DESC
    ");

    //debug($communication_links);

    return $communication_links;

}

}

И это два моих собственных метода разбивки на страницы, которые мне нужно использовать только для действия вида: 

function paginate($conditions, $fields, $order, $limit, $page = 1, $recursive = null, $extra = array()) {

    $recursive = -1;
    return $this->query("
    SELECT 'documents' AS 'type', 'D' AS 'marker', d.id AS id, d.date_create AS date, du.user_id AS info_aux, d.title AS title, d.desc AS content 
    FROM communications_documents AS cd
    JOIN documents AS d ON d.id = cd.document_id
    JOIN documents_users AS du ON du.document_id = d.id
    WHERE cd.communication_id = 137

    UNION

    SELECT 'events' AS 'type', 'E' AS 'marker', e.id AS id, e.date_create AS date, e.institution AS info_aux, e.title AS title, e.desc AS content
    FROM communications_events AS ce
    JOIN events AS e ON e.id = ce.event_id
    WHERE ce.communication_id =137

    UNION

    SELECT 'meetings' AS 'type', 'R' AS 'marker', m.id AS id, m.date_create AS date, m.site AS info_aux, m.title AS title, m.desc AS content
    FROM communications_meetings AS cm
    JOIN meetings AS m ON m.id = cm.meeting_id
    WHERE cm.communication_id = 137

    UNION

    SELECT 'interactions' AS 'type', 'C' AS 'marker', i.id AS id, i.date_create AS date, i.user_id AS info_aux, i.title AS title, i.content AS content
    FROM interactions AS i
    WHERE i.communication_id = 137

    ORDER BY date DESC
    LIMIT ".(($page-1)*$limit).", ".$limit);

}

function paginateCount($conditions = null, $recursive = 0, $extra = array()) {
    $sql = "
    SELECT 'documents' AS 'type', 'D' AS 'marker', d.id AS id, d.date_create AS date, du.user_id AS info_aux, d.title AS title, d.desc AS content 
    FROM communications_documents AS cd
    JOIN documents AS d ON d.id = cd.document_id
    JOIN documents_users AS du ON du.document_id = d.id
    WHERE cd.communication_id = 137

    UNION

    SELECT 'events' AS 'type', 'E' AS 'marker', e.id AS id, e.date_create AS date, e.institution AS info_aux, e.title AS title, e.desc AS content
    FROM communications_events AS ce
    JOIN events AS e ON e.id = ce.event_id
    WHERE ce.communication_id = 137

    UNION

    SELECT 'meetings' AS 'type', 'R' AS 'marker', m.id AS id, m.date_create AS date, m.site AS info_aux, m.title AS title, m.desc AS content
    FROM communications_meetings AS cm
    JOIN meetings AS m ON m.id = cm.meeting_id
    WHERE cm.communication_id = 137

    UNION

    SELECT 'interactions' AS 'type', 'C' AS 'marker', i.id AS id, i.date_create AS date, i.user_id AS info_aux, i.title AS title, i.content AS content
    FROM interactions AS i
    WHERE i.communication_id = 137

    ORDER BY date DESC
    ";
    $this->recursive = $recursive;
    $results = $this->query($sql);
    return count($results);
}`

1 Ответ

2 голосов
/ 12 августа 2011

В контроллере я бы установил некоторые очень общие параметры для каждой модели, например так: 

    class SampleController extends AppController {
        ...
        var $paginate = array(
            'ModelName' => array( ...general options... )
        );
        ...
    }

И затем внутри каждого действия вы можете настроить его: 

    ...
    function index(){
        $this->paginate = array(
            ... specific pagination options for index action ...
        );
        $this->paginate('ModelName');
    }
    ...
    function view(){
        $this->paginate = array(
            ... specific pagination options for view action ...
        );
        $this->paginate('ModelName');
    }

Таким образом, вы можете получить собственные результаты разбивки на страницы для каждого действия.

Надеюсь, это поможет.

...