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How to auto assign ForeignKey to CBV Create View?


By : Ibrahim Yehia
Date : October 16 2020, 08:10 AM
fixed the issue. Will look into that further I have two models ProductionProcess and ProductsMaster When I use {{ object.ProductName }} it comes with all ForeignKey Data. but i want to select only one which pk comes with url
code :
                docs.save(commit=False)
                docs.instance.ProductName_id = self.kwargs.get('pk')
                docs.instance.user = self.request.user
                docs.save()


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When I load from a .nib do I still need to create a view to assign to View?


By : cable_channel
Date : March 29 2020, 07:55 AM
hop of those help? No, your understanding is correct.
You use LoadView to instantiate the view if you are not using a .xib (i.e. you are creating the programatically).

How to assign foreignkey in DynamoDB?


By : user3157207
Date : March 29 2020, 07:55 AM
To fix the issue you can do DynamoDB does not have foreign keys. It is a NoSQL database that doesn't support that kind of relational data. There is no data integrity maintained between tables, so this sort of behavior is not built in. If you want to have this sort of behavior, you will have to model your data storage in DynamoDB a different way.
From the FAQ explaining that it is not a relational database:

Does Entityframework auto assign navigation properties on create


By : user3448397
Date : March 29 2020, 07:55 AM
Hope this helps When I run the below mentioned code EF saves the PersonAddress with the correct PersonId. I have NOT added the PersonAddress entities to the Person entity, even though I have not done this the records in my database are linked correctly. , Here's what happens:
code :
var person = context.People.Create();
var postalAddress           = context.PersonAddresses.Create();
postalAddress.AddressLine1  = "PostalAddressLine1";
var residentialAddress          = context.PersonAddresses.Create();
residentialAddress.AddressLine1 = "ResidentialAddressLine1";
context.People.Add(person);
context.PersonAddresses.Add(postalAddress);
context.PersonAddresses.Add(residentialAddress);
context.SaveChanges();

How to auto-assign value to the permitted params in Rails controller create method


By : Evan Bosscher
Date : March 29 2020, 07:55 AM
Hope this helps At first, you should authenticate a user. Since the current user is authenticated there is no need to pass him in parameters. You can do something like this:
code :
class CommentsController < ApplicationController

  before_action :authenticate_user!

  def create
    @meme = Meme.find(params[:meme_id])
    @comment = @meme.comments.create(comment_params)

    redirect_to meme_path(@meme)
  end

private

    def comment_params
      params.require(:comment).permit(:body).merge(commenter: current_user)
    end
end

How to create multiple objects along with a foreignkey whose foreignkey field is provided?


By : user1638396
Date : March 29 2020, 07:55 AM
With these it helps all you need is to create the Lawyer, also you should set allow null to true for the laweyer field.
code :
class SessionSerializer(serializers.ModelSerializer):

  email = serializers.SerializerMethodField()
  lawyer = serializers.IntegerField(allow_null=True, required=False)

  fields=['name', 'lawyer','email']

  def create(self, validated_data):
     user = User.objects.create(email=validated_data.get('email'))
     lawyer = Lawyer.objects.create(user=user)
     name = validated_data.get('name')
     instance = Session.objects.create(lawyer=lawyer, name=name)
     return instance
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