Display Many to Many Field in Django admin site

[mansi thakkar]

Hello ,

In my database, there is one table named Product and the other table is Ingredient. Both are related with ManyToMany Relationship using bridge entity (table) named ProductIngredient. 

I am trying to display Many To Many field named ingredient in my Django admin site. 

Here is the attached code and screen shot of the error.

I would like to know the solution of this error and also any other way to display  the list of ingredients for each product. 

Thank you.

[squal poreover]

I need to see get_ingredients() . To guess what's happening?

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[mansi thakkar]

It is there in ProductIngredient.png.

[Julio Biason]

It seems your `get_ingredients()` is expecting the Product itself and another object (for some reason).

Have you tried to remove `obj` from the parameters and use `self` in that function?

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[mansi thakkar]

Yes I have. But it didn't work. Basically my product has many ingredients and on ingredient is contained in many products so all I need is just display product with all the ingredients it contains on admin site.

On Tuesday, April 3, 2018 at 12:48:34 PM UTC-4, Julio Biason wrote:

It seems your `get_ingredients()` is expecting the Product itself and another object (for some reason).

Have you tried to remove `obj` from the parameters and use `self` in that function?

On Tue, Apr 3, 2018 at 12:22 PM, mansi thakkar <mansith...@gmail.com> wrote:

Hello ,

In my database, there is one table named Product and the other table is Ingredient. Both are related with ManyToMany Relationship using bridge entity (table) named ProductIngredient. 

I am trying to display Many To Many field named ingredient in my Django admin site. 

Here is the attached code and screen shot of the error.

I would like to know the solution of this error and also any other way to display  the list of ingredients for each product. 

Thank you.

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[Muhammad bin-haneef]

kindly share the code where you registered your product for admin site and you are calling "get_ ingredients()" method.

As the error shows your method needs 2 arguments to pass when you call "get_ingredients()".

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[carlos]

[i.fields for i in self.ingredients.objects.all()]

fields is you method __str__ back, try comments __str__ method in model  Ingredients

or this function get_ingredient create in admin files and used obj parameter

cheers

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att.

Carlos Rocha