How to submit changeset with association

[sf8193]

Hello, I’m trying to add something to my database that contains a has_many association like so

  schema "shipments" do
    field :label, :string
    field :target_date_to_be_shipped, :string
    field :status, :string
    has_many :routes, Route

    timestamps()
  end

I have a new form like so

label

---

shipping date

---

status

---

route
??

I want to set a link under route where they can go to route/new and it will be associated with this shipment. is that possible?

EDIT

something like this in the form is what I was thinking

<div class="form-item">
    <%= label f, :routes %>
    <span><%= link "New Route", to: group_shipment_route_path(@conn, :new, @group, @shipment) %></span>
    <%= error_tag f, :routes %>
  </div>

But is there a way to associate what’s submitted after the link with this shipment?

[OvermindDL1]

@sf8193

But is there a way to associate what’s submitted after the link with this shipment?

@sf8193

group_shipment_route_path(@conn, :new, @group, @shipment)

Isn’t passing in shipment here already doing the association on the URL?

[joaquinalcerro]

I think you are trying to accomplish what’s been discussed in this posts:

Best way to handle associations in single html form

Hi everyone, I have been learning a bit more on Ecto and Phoenix. Specifically in how to handle a master/detail o parent/child associations and the corresponding Web Form. My question: Is there a better way to handle this typical scenario than the one I implemented below? In my journey I read about: Ecto associations, multi, cast_assoc, put_assoc, embeded_schemas, transactions Drab Library Checktout many resources like: Phoenix, Ecto, Drab official documentation Different Forums: Medium,…

Handling nested associations with cast_assoc

Hi everyone, I finally had a bit of time to followup on this post: Best way to handle associations in single html form In my previous post I just wanted to create a handle a nested association in the same html form. Specifically to create the parent and child in one go. In this post I want to go a little bit further and try to explain to new comers how I manage to implement a full CRUD for this scenarios. Please feel free to comment in this post how did you handle this scenario. You can fin…

Best regards,

Joaquin Alcerro

[joaquinalcerro]

@sf8193

Please take a look a this post also:

Nested Forms and Associations in Phoenix 1.4

I’m trying to learn how to create nested forms in Phoenix 1.4. The only tutorials I’ve been able to find are for Phoenix 1.2 or otherwise don’t work. Does anyone have any examples of a complex dynamic nested form? I’m looking at a library called Formex that I might end up using but my preferences are to write the code myself for better understanding. Thank you in advance.

I made some changes that makes it easier to handle the association.

Hope this helps.