CakePHP 3中关于belongsToMany关联的问题
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【中文标题】CakePHP 3中关于belongsToMany关联的问题【英文标题】：Questions about belongsToMany association in CakePHP 3 【发布时间】：2018-04-29 17:06:44 【问题描述】：我的时间表应用模型需要帮助……
我想做的是一款可以让你每天节省时间的应用。
我建立了这个模型：
注意：我添加了从 timesheets 到 timesheets_tasks 模型的 hasMany 关系，因为我没有设法通过其他方式访问 days 表
最后我不确定从时间表到任务的 belongsToMany 在这种情况下是否真的合适……
我有两个问题：
这个模型听起来不错吗？ 如何节省天数？ 因为当我保存这个时：
object(App\Model\Entity\Timesheet)
'id' => (int) 2,
'user_id' => (int) 1,
'week_nb' => (int) 16,
'year' => (int) 2018,
'validated' => false,
'created' => object(Cake\I18n\FrozenTime)
'time' => '2018-04-02T09:25:29+00:00',
'timezone' => 'UTC',
'fixedNowTime' => false
,
'modified' => object(Cake\I18n\FrozenTime)
'time' => '2018-04-28T22:17:29+00:00',
'timezone' => 'UTC',
'fixedNowTime' => false
,
'tasks' => [
(int) 0 => object(App\Model\Entity\Task)
'id' => (int) 1,
'name' => 'Atelier 1 - Compta',
'scope' => 'global',
'user_id' => null,
'project_id' => (int) 1,
'created' => object(Cake\I18n\FrozenTime)
'time' => '2018-04-01T15:19:44+00:00',
'timezone' => 'UTC',
'fixedNowTime' => false
,
'modified' => object(Cake\I18n\FrozenTime)
'time' => '2018-04-01T15:19:44+00:00',
'timezone' => 'UTC',
'fixedNowTime' => false
,
'[new]' => false,
'[accessible]' => [
'*' => true
],
'[dirty]' => [],
'[original]' => [],
'[virtual]' => [],
'[errors]' => [],
'[invalid]' => [],
'[repository]' => 'Tasks'
,
(int) 1 => object(App\Model\Entity\Task)
'id' => (int) 2,
'name' => 'Atelier 2 - Achats',
'scope' => 'global',
'user_id' => null,
'project_id' => (int) 1,
'created' => object(Cake\I18n\FrozenTime)
'time' => '2018-04-01T15:20:13+00:00',
'timezone' => 'UTC',
'fixedNowTime' => false
,
'modified' => object(Cake\I18n\FrozenTime)
'time' => '2018-04-01T15:20:13+00:00',
'timezone' => 'UTC',
'fixedNowTime' => false
,
'[new]' => false,
'[accessible]' => [
'*' => true
],
'[dirty]' => [],
'[original]' => [],
'[virtual]' => [],
'[errors]' => [],
'[invalid]' => [],
'[repository]' => 'Tasks'
],
'timesheets_tasks' => [
(int) 0 => object(App\Model\Entity\TimesheetsTask)
'id' => (int) 13,
'timesheet_id' => (int) 2,
'task_id' => (int) 1,
'created' => object(Cake\I18n\FrozenTime)
'time' => '2018-04-28T22:04:45+00:00',
'timezone' => 'UTC',
'fixedNowTime' => false
,
'modified' => object(Cake\I18n\FrozenTime)
'time' => '2018-04-28T22:04:45+00:00',
'timezone' => 'UTC',
'fixedNowTime' => false
,
'days' => [
(int) 0 => object(App\Model\Entity\Day)
'date' => object(DateTime)
date => '2018-04-16 22:17:40.643236'
timezone_type => (int) 3
timezone => 'UTC'
,
'[new]' => true,
'[accessible]' => [
'*' => true
],
'[dirty]' => [
'date' => true
],
'[original]' => [],
'[virtual]' => [],
'[errors]' => [],
'[invalid]' => [],
'[repository]' => 'Days'
,
(int) 1 => object(App\Model\Entity\Day)
'date' => object(DateTime)
date => '2018-04-17 22:17:40.647586'
timezone_type => (int) 3
timezone => 'UTC'
,
'[new]' => true,
'[accessible]' => [
'*' => true
],
'[dirty]' => [
'date' => true
],
'[original]' => [],
'[virtual]' => [],
'[errors]' => [],
'[invalid]' => [],
'[repository]' => 'Days'
,
(int) 2 => object(App\Model\Entity\Day)
'date' => object(DateTime)
date => '2018-04-18 22:17:40.647655'
timezone_type => (int) 3
timezone => 'UTC'
,
'[new]' => true,
'[accessible]' => [
'*' => true
],
'[dirty]' => [
'date' => true
],
'[original]' => [],
'[virtual]' => [],
'[errors]' => [],
'[invalid]' => [],
'[repository]' => 'Days'
,
(int) 3 => object(App\Model\Entity\Day)
'date' => object(DateTime)
date => '2018-04-19 22:17:40.647705'
timezone_type => (int) 3
timezone => 'UTC'
,
'[new]' => true,
'[accessible]' => [
'*' => true
],
'[dirty]' => [
'date' => true
],
'[original]' => [],
'[virtual]' => [],
'[errors]' => [],
'[invalid]' => [],
'[repository]' => 'Days'
,
(int) 4 => object(App\Model\Entity\Day)
'date' => object(DateTime)
date => '2018-04-20 22:17:40.647754'
timezone_type => (int) 3
timezone => 'UTC'
,
'[new]' => true,
'[accessible]' => [
'*' => true
],
'[dirty]' => [
'date' => true
],
'[original]' => [],
'[virtual]' => [],
'[errors]' => [],
'[invalid]' => [],
'[repository]' => 'Days'
,
(int) 5 => object(App\Model\Entity\Day)
'date' => object(DateTime)
date => '2018-04-21 22:17:40.647796'
timezone_type => (int) 3
timezone => 'UTC'
,
'[new]' => true,
'[accessible]' => [
'*' => true
],
'[dirty]' => [
'date' => true
],
'[original]' => [],
'[virtual]' => [],
'[errors]' => [],
'[invalid]' => [],
'[repository]' => 'Days'
,
(int) 6 => object(App\Model\Entity\Day)
'date' => object(DateTime)
date => '2018-04-22 22:17:40.647838'
timezone_type => (int) 3
timezone => 'UTC'
,
'[new]' => true,
'[accessible]' => [
'*' => true
],
'[dirty]' => [
'date' => true
],
'[original]' => [],
'[virtual]' => [],
'[errors]' => [],
'[invalid]' => [],
'[repository]' => 'Days'
],
'[new]' => false,
'[accessible]' => [
'*' => true
],
'[dirty]' => [
'days' => true
],
'[original]' => [
'days' => []
],
'[virtual]' => [],
'[errors]' => [],
'[invalid]' => [],
'[repository]' => 'TimesheetsTasks'
],
'[new]' => false,
'[accessible]' => [
'*' => true
],
'[dirty]' => [
'tasks' => true
],
'[original]' => [
'tasks' => [
(int) 0 => object(App\Model\Entity\Task)
'id' => (int) 1,
'name' => 'Atelier 1 - Compta',
'scope' => 'global',
'user_id' => null,
'project_id' => (int) 1,
'created' => object(Cake\I18n\FrozenTime)
'time' => '2018-04-01T15:19:44+00:00',
'timezone' => 'UTC',
'fixedNowTime' => false
,
'modified' => object(Cake\I18n\FrozenTime)
'time' => '2018-04-01T15:19:44+00:00',
'timezone' => 'UTC',
'fixedNowTime' => false
,
'_joinData' => object(App\Model\Entity\TimesheetsTask)
'id' => (int) 13,
'timesheet_id' => (int) 2,
'task_id' => (int) 1,
'created' => object(Cake\I18n\FrozenTime)
'time' => '2018-04-28T22:04:45+00:00',
'timezone' => 'UTC',
'fixedNowTime' => false
,
'modified' => object(Cake\I18n\FrozenTime)
'time' => '2018-04-28T22:04:45+00:00',
'timezone' => 'UTC',
'fixedNowTime' => false
,
'[new]' => false,
'[accessible]' => [
'*' => true
],
'[dirty]' => [],
'[original]' => [],
'[virtual]' => [],
'[errors]' => [],
'[invalid]' => [],
'[repository]' => 'TimesheetsTasks'
,
'[new]' => false,
'[accessible]' => [
'*' => true
],
'[dirty]' => [],
'[original]' => [],
'[virtual]' => [],
'[errors]' => [],
'[invalid]' => [],
'[repository]' => 'Tasks'
]
],
'[virtual]' => [],
'[errors]' => [],
'[invalid]' => [],
'[repository]' => 'Timesheets'
我不节省时间......控制器：
public function add()
$timesheet = $this->Timesheets->newEntity();
if ($this->request->is(['patch', 'post', 'put']))
if(!is_null($this->request->getData('id')))
$timesheet = $this->Timesheets->get($this->request->getData('id'), ['contain' => ['TimesheetsTasks' => ['Days'], 'Tasks']]);
// Here I "create" 7 days entities if a new timesheet_task has been added
$this->initEmptyTasks($timesheet);
$timesheet = $this->Timesheets->patchEntity($timesheet, $this->request->getData(), ['associated' => ['TimesheetsTasks' => ['associated' => ['Days']], 'Tasks']]);
if ($result = $this->Timesheets->save($timesheet))
$this->Flash->success(__('The timesheet has been saved.'));
return $this->redirect($this->referer());
$this->Flash->error(__('The timesheet could not be saved. Please, try again.'));
return $this->redirect($this->referer());
$users = $this->Timesheets->Users->find('list', ['limit' => 200]);
$this->set(compact('timesheet', 'users'));
我没有任何错误，但没有保存天数……
提前感谢您的帮助。
【问题讨论】：
【参考方案1】：天哪，我找到了根本原因……
我正在修改实体，而不是用来修补实体的数据……
但现在我有一个问题：
你能有一个 BTM 数据透视表与另一个表有 hasMany 关系吗？
因为我可以为附加字段（此处的注释字段）保存 _joinData，但不能为 hasMany 关系（天表）保存
这是我调用 patchEntity 方法之前的 $data ：
[
'id' => '2',
'week_nb' => '16',
'year' => '2018',
'tasks' => [
(int) 0 => [
'id' => (int) 1,
'_joinData' => [
'comment' => 'Hihi tache 1 new',
'days' => [
(int) 0 => [
'timesheet_task_id' => (int) 35,
'ts_date' => object(DateTime)
date => '2018-04-16 19:04:45.150726'
timezone_type => (int) 3
timezone => 'Europe/Paris'
]
]
]
],
(int) 1 => [
'id' => (int) 2,
'_joinData' => [
'comment' => 'Hihi tache 2'
]
]
]
]
这是我调用 patchEntity 方法后的数据：
$timesheet = $this->Timesheets->patchEntity($timesheet, $data, ['associated' => ['Tasks._joinData.Days']]);
_joinData 部分：
'_joinData' => object(App\Model\Entity\TimesheetsTask)
'id' => (int) 35,
'timesheet_id' => (int) 2,
'task_id' => (int) 1,
'comment' => 'Hihi tache 1 new',
'created' => object(Cake\I18n\FrozenTime)
'time' => '2018-05-01T18:39:17+02:00',
'timezone' => 'Europe/Paris',
'fixedNowTime' => false
,
'modified' => object(Cake\I18n\FrozenTime)
'time' => '2018-05-01T18:58:55+02:00',
'timezone' => 'Europe/Paris',
'fixedNowTime' => false
,
'days' => [
(int) 0 => object(App\Model\Entity\Day)
'timesheet_task_id' => (int) 35,
'ts_date' => object(DateTime)
date => '2018-04-16 19:02:01.023189'
timezone_type => (int) 3
timezone => 'Europe/Paris'
,
'[new]' => true,
'[accessible]' => [
'*' => true
],
'[dirty]' => [
'timesheet_task_id' => true,
'ts_date' => true
],
'[original]' => [],
'[virtual]' => [],
'[errors]' => [],
'[invalid]' => [],
'[repository]' => 'Days'
],
'[new]' => false,
'[accessible]' => [
'*' => true
],
'[dirty]' => [
'days' => true
],
'[original]' => [],
'[virtual]' => [],
'[errors]' => [],
'[invalid]' => [],
'[repository]' => 'TimesheetsTasks'
,
好像 cakephp 正在将我的一天记录转换为一天实体，但现在结果相同，它没有保存。
【讨论】：
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