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Adding To Association Table Without Loading


By : pravin
Date : September 12 2020, 01:00 PM
it fixes the issue It looks like creating the B object outside the Add operation and either attaching it to the context or marking its state as "Unchanged" works as required.
code :
var b = new B(){
    Id = 100
};

context.B.Attach(b);
//OR
context.Entry(b).State = EntityState.Unchanged;

A.Bs.Add(b);


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Adding a record into an association table using Breezejs


By : Vijay K
Date : March 29 2020, 07:55 AM
Hope that helps Providing that you set the "foreign key" properties appropriately when creating and attaching entities, Breeze will automatically update all of the associated relationships, i.e. navigation properties on this and any related entities. You should never need to manually perform any fixup.
Similarly, if you do the reverse and assign an entity to a scalar navigation property then Breeze will automatically update the foreign key(s). For a collection navigation property, if you push a value into the collection then Breeze will automatically update the foreign key of the entity being pushed.

ActiveAdmin automatically loading full association table


By : Seteven Wei
Date : March 29 2020, 07:55 AM
hop of those help? For anyone dealing with this same issue, I finally traced it to the automatically generated sidebar in ActiveAdmin. This includes a search field that includes a select box for all associated records.
If you have an associated table with over a million records like I do AA will happily attempt to insert the entire table into the select box.
code :
ActiveAdmin.register Product do
  filter :title
end

Adding junction table to EF ends up as association


By : JiroCat
Date : March 29 2020, 07:55 AM
it fixes the issue This happens because the only function of this junction table is to create a many to many relation.
When EF finds a table which only have columns which are FKs to other tables, and they compose the primary key, it simply converts it to a many-to-many relation.

Sequelize eager loading association with through table


By : user2941244
Date : March 29 2020, 07:55 AM
it helps some times I found the problem. The associations in the above code are actually correct - what was failing was my models/index.js, which had been automatically generated by the yeoman generator-angular-express-sequelize
index.js was looping through the model files, importing them into the sequelize object and storing a copy in an array db[], then trying to run the classMethod associate(), but it was calling models.options.associate() instead of models.associate():
code :
Object.keys(db).forEach(function (modelName) {
    if (db[modelName].options.hasOwnProperty('associate')) {
        db[modelName].options.associate(db);
    }
});

Adding Association to Join Table for HaBtM Relationship


By : Adnan Siddiqui
Date : March 29 2020, 07:55 AM
wish helps you Decided to use a has_many :through (user-meeting-user) relationship instead. Question no longer relevant.
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