Function Repo.all/1 is undefined (module Repo is not available)

In the docs, Repo.fun/arity needs to be considered as MyApp.Repo.fun. So in your example, I would suggest adding alias PhxReactList7.Repo in your controller and you should be good to go.

thank you for your answer, will add it now…

the new controller file now looks like this:

defmodule PhxReactList7Web.BlogsController do
  use PhxReactList7Web, :controller

  alias PhxReactList7.Blogs
  alias PhxReactList7.Repo

  def index(conn, _params) do
    blogs = Repo.all(Blogs)
    render conn, "index.json", blogs: blogs
  end
end

and now I get the error:

protocol Ecto.Queryable not implemented for PhxReactList7.Blogs of type Atom, the given module does not provide a schema. This protocol is implemented for the following type(s): Atom, BitString, Ecto.Query, Ecto.SubQuery, Tuple

I guess my main problem is that I am totally confused where the schema and the database tables are defined and used inside the application as the steps described in the article do now correspond to the current version.

I have read both the controllers guides and the ecto guides but I still have not made the connection between the dots metaphorically.

I did the migration step and that worked, I then added a few records to the database so I’m good there.

Database tables are defined in the migrations. You didn’t create a schema in your .Blogs module

Ecto treats schemas separately from the database and does not autopopulate it for you. You can have more than one schema for any given database table, you can use that to enforce contextual boundaries on database columns access (context A needs to only see these columns and context B needs to only see these other columns)

I did create a schema, the file name is blogs.ex under the blogs directory under the app directory

the file looks like this:

defmodule PhxReactList7.Blog do
  use Ecto.Schema
  import Ecto.Changeset

  schema "blogs" do
    field :title, :string
    field :subtitle, :string
    field :image, :string
    field :link, :string
    field :author, :string

    timestamps()
  end

  @doc false
  def changeset(blogs, attrs) do
    blogs
    |> cast(attrs, [:title, :subtitle, :image, :link, :author])
    |> validate_required([:title, :subtitle, :image, :link, :author])
  end
end

I followed the Ecto guides in creating the schema file, but I may have the object names wrong…

anywho: thank you for your great response…

That’s the inconvenient following 1.3 tuto, there were no context and no schema, but models…

Also beware of Blog, Blogs, blog, blogs. Because You made some mistakes in the naming.

What You should have is something like PhxReactList7.Blogs.Blog with Blogs being the context, and blog being the schema.

I suggest You start a demo project and initialize a simple resource, and see how it is done with 1.5

With mix phx.gen.context

I figured as much. I did just as are suggesting and created the friends mix app as shown in the Ecto guides but that demo does not go far enough as it does not have a front end section to the example that uses the created schema/tables context

I will start all over again by reading about context and other things and also I will put the project in github so I don’t have to cut and paste like I’m doing now..

the Blogs, Blogs.blog, blogs and other bloggie issues did not work for me… again because of the 1.3 to 1.5 incompatibility issue and there does not seem to be any docs that amplify or describe the way to go from one to the other…

Thanks

Google is your friend

https://medium.com/adorableio/from-models-to-contexts-in-phoenix-1-3-0-1535d1d773b2

Oh boy have I been into google, but sometimes friends do not understand what you are trying to ask or the questions do not make any sense to your friend, so the answers do not help.

No prob, will continue to google, and to bing it with edge as well.

Thanks again, will read the medium article since I also am a subscriber…

just to be clear, you need to pass the PhxReactList7.Blog module to the repo function. Currently you are passing the PhxReactList7.Blogs module to the repo function.