Laravel 多态关联中不能使用 has, whereHas

ghost commented on Apr 13, 2017 • 

edited by ghost 

i'm currently using this code in my own project my Model (\App\Production\Models\Production Model) public function detail() { return $this->morphTo('detail'); } public function scopeDetailable($query, $callable = null) { list($type, $key) = $this->getPolymorphicFields(); $this->newQuery()->distinct()->get([$type])->keyBy($type)->map(function ($model) use ($type) { return (new $model->{$type})->getTable(); })->each(function ($table, $modelClass) use (&$query, $key, $callable) { $model = new $modelClass; $query = $query->orWhereExists(function ($query) use ($table, $model, $key, $callable) { $query->select('*')->from($table)->whereRaw("{$this->getTable()}.{$key} = {$table}.{$model->getKeyName()}") ->when($callable instanceof \Closure, $callable); }); }); return $query; } protected function getPolymorphicFields() { $relation = $this->detail(); return [$relation->getMorphType(), $relation->getForeignKey()]; } my Controller \App\Production\Models\Production::detailable(function ($query) { $query->whereDate('panen_future_date', '2017-02-08'); })->with('detail')->get() and it works for my use case. please note that all model related to \App\Production\Models\Production model have 'panen_future_date' filed in its table.

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转载于:https://www.cnblogs.com/mouseleo/p/10984076.html