Complex relationship formation in Laravel 5












0















I'm working on a complex shopping cart project. I have relationships like this



CategoryGroup model





// AppCategoryGroup

class CategoryGroup extend Model
{

public function categories()
{
return $this->hasMany(Category::class);
}
}


Category model



// AppCategory

class Inventory extend Model
{

public function categoryGroup()
{
return $this->belongsTo(CategoryGroup::class);
}


public function products()
{
return $this->belongsToMany(Product::class);
}


public function listings()
{
return $this->belongsToMany(
Inventory::class,
'category_product',
null,
'product_id',
null,
'product_id'
);
}

}


Product model



// AppProduct

class Product extend Model
{
public function categories()
{
return $this->belongsToMany(Category::class);
}

public function listings()
{
return $this->hasMany(Inventory::class);
}
}


Inventory model



// AppInventory

class Inventory extend Model
{

public function products()
{
return $this->belongsTo(Product::class);
}
}


Now I'm stuck on the situation where I need to create a relationship between The CategoryGroups and the Inventory model like this:



// AppCategoryGroup

class CategoryGroup extend Model
{

public function categories()
{
return $this->hasMany(Category::class);
}


public function listings()
{
// Can't figured out the way
// A belongsToMany like the AppCategory would be great
}

}


Is there a good way to achieve this kind of relationship?










share|improve this question





























    0















    I'm working on a complex shopping cart project. I have relationships like this



    CategoryGroup model





    // AppCategoryGroup

    class CategoryGroup extend Model
    {

    public function categories()
    {
    return $this->hasMany(Category::class);
    }
    }


    Category model



    // AppCategory

    class Inventory extend Model
    {

    public function categoryGroup()
    {
    return $this->belongsTo(CategoryGroup::class);
    }


    public function products()
    {
    return $this->belongsToMany(Product::class);
    }


    public function listings()
    {
    return $this->belongsToMany(
    Inventory::class,
    'category_product',
    null,
    'product_id',
    null,
    'product_id'
    );
    }

    }


    Product model



    // AppProduct

    class Product extend Model
    {
    public function categories()
    {
    return $this->belongsToMany(Category::class);
    }

    public function listings()
    {
    return $this->hasMany(Inventory::class);
    }
    }


    Inventory model



    // AppInventory

    class Inventory extend Model
    {

    public function products()
    {
    return $this->belongsTo(Product::class);
    }
    }


    Now I'm stuck on the situation where I need to create a relationship between The CategoryGroups and the Inventory model like this:



    // AppCategoryGroup

    class CategoryGroup extend Model
    {

    public function categories()
    {
    return $this->hasMany(Category::class);
    }


    public function listings()
    {
    // Can't figured out the way
    // A belongsToMany like the AppCategory would be great
    }

    }


    Is there a good way to achieve this kind of relationship?










    share|improve this question



























      0












      0








      0








      I'm working on a complex shopping cart project. I have relationships like this



      CategoryGroup model





      // AppCategoryGroup

      class CategoryGroup extend Model
      {

      public function categories()
      {
      return $this->hasMany(Category::class);
      }
      }


      Category model



      // AppCategory

      class Inventory extend Model
      {

      public function categoryGroup()
      {
      return $this->belongsTo(CategoryGroup::class);
      }


      public function products()
      {
      return $this->belongsToMany(Product::class);
      }


      public function listings()
      {
      return $this->belongsToMany(
      Inventory::class,
      'category_product',
      null,
      'product_id',
      null,
      'product_id'
      );
      }

      }


      Product model



      // AppProduct

      class Product extend Model
      {
      public function categories()
      {
      return $this->belongsToMany(Category::class);
      }

      public function listings()
      {
      return $this->hasMany(Inventory::class);
      }
      }


      Inventory model



      // AppInventory

      class Inventory extend Model
      {

      public function products()
      {
      return $this->belongsTo(Product::class);
      }
      }


      Now I'm stuck on the situation where I need to create a relationship between The CategoryGroups and the Inventory model like this:



      // AppCategoryGroup

      class CategoryGroup extend Model
      {

      public function categories()
      {
      return $this->hasMany(Category::class);
      }


      public function listings()
      {
      // Can't figured out the way
      // A belongsToMany like the AppCategory would be great
      }

      }


      Is there a good way to achieve this kind of relationship?










      share|improve this question
















      I'm working on a complex shopping cart project. I have relationships like this



      CategoryGroup model





      // AppCategoryGroup

      class CategoryGroup extend Model
      {

      public function categories()
      {
      return $this->hasMany(Category::class);
      }
      }


      Category model



      // AppCategory

      class Inventory extend Model
      {

      public function categoryGroup()
      {
      return $this->belongsTo(CategoryGroup::class);
      }


      public function products()
      {
      return $this->belongsToMany(Product::class);
      }


      public function listings()
      {
      return $this->belongsToMany(
      Inventory::class,
      'category_product',
      null,
      'product_id',
      null,
      'product_id'
      );
      }

      }


      Product model



      // AppProduct

      class Product extend Model
      {
      public function categories()
      {
      return $this->belongsToMany(Category::class);
      }

      public function listings()
      {
      return $this->hasMany(Inventory::class);
      }
      }


      Inventory model



      // AppInventory

      class Inventory extend Model
      {

      public function products()
      {
      return $this->belongsTo(Product::class);
      }
      }


      Now I'm stuck on the situation where I need to create a relationship between The CategoryGroups and the Inventory model like this:



      // AppCategoryGroup

      class CategoryGroup extend Model
      {

      public function categories()
      {
      return $this->hasMany(Category::class);
      }


      public function listings()
      {
      // Can't figured out the way
      // A belongsToMany like the AppCategory would be great
      }

      }


      Is there a good way to achieve this kind of relationship?







      laravel-5 eloquent laravel-5.5 laravel-query-builder eloquent--relationship






      share|improve this question















      share|improve this question













      share|improve this question




      share|improve this question








      edited Mar 6 at 19:34







      Munna Khan

















      asked Nov 25 '18 at 21:21









      Munna KhanMunna Khan

      410519




      410519
























          1 Answer
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          0














          Laravel has no native support for a direct relationship.



          I created a package for cases like this: https://github.com/staudenmeir/eloquent-has-many-deep



          You can use it like this:





          class CategoryGroup extends Model {
          use StaudenmeirEloquentHasManyDeepHasRelationships;

          public function inventories() {
          return $this->hasManyDeep(
          Inventory::class,
          [Category::class, 'category_product', Product::class]
          );
          }
          }





          share|improve this answer























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            1 Answer
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            1 Answer
            1






            active

            oldest

            votes









            active

            oldest

            votes






            active

            oldest

            votes









            0














            Laravel has no native support for a direct relationship.



            I created a package for cases like this: https://github.com/staudenmeir/eloquent-has-many-deep



            You can use it like this:





            class CategoryGroup extends Model {
            use StaudenmeirEloquentHasManyDeepHasRelationships;

            public function inventories() {
            return $this->hasManyDeep(
            Inventory::class,
            [Category::class, 'category_product', Product::class]
            );
            }
            }





            share|improve this answer




























              0














              Laravel has no native support for a direct relationship.



              I created a package for cases like this: https://github.com/staudenmeir/eloquent-has-many-deep



              You can use it like this:





              class CategoryGroup extends Model {
              use StaudenmeirEloquentHasManyDeepHasRelationships;

              public function inventories() {
              return $this->hasManyDeep(
              Inventory::class,
              [Category::class, 'category_product', Product::class]
              );
              }
              }





              share|improve this answer


























                0












                0








                0







                Laravel has no native support for a direct relationship.



                I created a package for cases like this: https://github.com/staudenmeir/eloquent-has-many-deep



                You can use it like this:





                class CategoryGroup extends Model {
                use StaudenmeirEloquentHasManyDeepHasRelationships;

                public function inventories() {
                return $this->hasManyDeep(
                Inventory::class,
                [Category::class, 'category_product', Product::class]
                );
                }
                }





                share|improve this answer













                Laravel has no native support for a direct relationship.



                I created a package for cases like this: https://github.com/staudenmeir/eloquent-has-many-deep



                You can use it like this:





                class CategoryGroup extends Model {
                use StaudenmeirEloquentHasManyDeepHasRelationships;

                public function inventories() {
                return $this->hasManyDeep(
                Inventory::class,
                [Category::class, 'category_product', Product::class]
                );
                }
                }






                share|improve this answer












                share|improve this answer



                share|improve this answer










                answered Nov 26 '18 at 1:47









                Jonas StaudenmeirJonas Staudenmeir

                13.3k2937




                13.3k2937
































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