如何通过 pivot table 从 table 获取相关数据?
How to get data from table related through pivot table?
我有 4 个 table:国家、活动、country_activities 和套餐。
国家和活动通过枢轴 table country_activity 关联,包与 country_activity 关联。
现在,我如何急切加载与一个国家/地区的每个 activity 相关的所有包?
class Country extends Model
{
public function activities() {
return $this->belongsToMany('App\Models\Activity','country_activities')->using('App\Models\CountryActivity')->as('country_activities');
}
}
class Activity extends Model
{
public function countries() {
return $this->belongsToMany('App\Models\Country','country_activities')->using('App\Models\CountryActivity')->as('country_activities');
}
}
class Package extends Model
{
public function country_activities() {
return $this->belongsToMany('App\Models\CountryActivity');
}
}
class CountryActivity extends Pivot
{
protected $table = 'country_activities';
public function packages() {
return $this->hasMany('App\Models\Package');
}
}
我在我从事的项目中做了类似的事情。我不确定它是否有效,但值得一试:
$country = Country::find(1);
$country->activities = $contry->activities()->get()->each(function ($i, $k){
$i->packages = $i->pivot->packages;
//$i->makeHidden('pivot'); -> This is useful if you want to hide the pivot table
});
var_dump($country);
所以,这对我有用。
class Country extends Model
{
public function activities() {
return $this->belongsToMany('App\Models\Activity','country_activities')->using('App\Models\CountryActivity')->withPivot(['id'])->as('country_activities');
}
现在,在我的控制器中,我这样做
$country = Country::with(['activities'=> function($q) {$q->where('name','Trekking');}])->where('name','Nepal')->first(['id','name']);
$country->activities->map(function ($i){
$i->country_activities->load('packages');
return $i;
});
我有 4 个 table:国家、活动、country_activities 和套餐。 国家和活动通过枢轴 table country_activity 关联,包与 country_activity 关联。 现在,我如何急切加载与一个国家/地区的每个 activity 相关的所有包?
class Country extends Model
{
public function activities() {
return $this->belongsToMany('App\Models\Activity','country_activities')->using('App\Models\CountryActivity')->as('country_activities');
}
}
class Activity extends Model
{
public function countries() {
return $this->belongsToMany('App\Models\Country','country_activities')->using('App\Models\CountryActivity')->as('country_activities');
}
}
class Package extends Model
{
public function country_activities() {
return $this->belongsToMany('App\Models\CountryActivity');
}
}
class CountryActivity extends Pivot
{
protected $table = 'country_activities';
public function packages() {
return $this->hasMany('App\Models\Package');
}
}
我在我从事的项目中做了类似的事情。我不确定它是否有效,但值得一试:
$country = Country::find(1);
$country->activities = $contry->activities()->get()->each(function ($i, $k){
$i->packages = $i->pivot->packages;
//$i->makeHidden('pivot'); -> This is useful if you want to hide the pivot table
});
var_dump($country);
所以,这对我有用。
class Country extends Model
{
public function activities() {
return $this->belongsToMany('App\Models\Activity','country_activities')->using('App\Models\CountryActivity')->withPivot(['id'])->as('country_activities');
}
现在,在我的控制器中,我这样做
$country = Country::with(['activities'=> function($q) {$q->where('name','Trekking');}])->where('name','Nepal')->first(['id','name']);
$country->activities->map(function ($i){
$i->country_activities->load('packages');
return $i;
});