Refactor media upload

Use Upload Media logic from Pleroma

Backend changes for picture upload

Move AS <-> Model conversion to separate module

Front changes

Downgrade apollo-client: https://github.com/Akryum/vue-apollo/issues/577

Signed-off-by: Thomas Citharel <tcit@tcit.fr>

lib/mobilizon/media.ex

@@ -0,0 +1,115 @@
+defmodule Mobilizon.Media do
+  @moduledoc """
+  The Media context.
+  """
+
+  import Ecto.Query, warn: false
+  alias Mobilizon.Repo
+
+  alias Mobilizon.Media.Picture
+
+  @doc false
+  def data() do
+    Dataloader.Ecto.new(Mobilizon.Repo, query: &query/2)
+  end
+
+  @doc false
+  def query(queryable, _params) do
+    queryable
+  end
+
+  @doc """
+  Gets a single picture.
+
+  Raises `Ecto.NoResultsError` if the Picture does not exist.
+
+  ## Examples
+
+      iex> get_picture!(123)
+      %Picture{}
+
+      iex> get_picture!(456)
+      ** (Ecto.NoResultsError)
+
+  """
+  def get_picture!(id), do: Repo.get!(Picture, id)
+
+  def get_picture(id), do: Repo.get(Picture, id)
+
+  @doc """
+  Get a picture by it's URL
+  """
+  @spec get_picture_by_url(String.t()) :: Picture.t() | nil
+  def get_picture_by_url(url) do
+    from(
+      p in Picture,
+      where: fragment("? @> ?", p.file, ~s|{"url": "#{url}"}|)
+    )
+    |> Repo.one()
+  end
+
+  @doc """
+  Creates a picture.
+
+  ## Examples
+
+      iex> create_picture(%{field: value})
+      {:ok, %Picture{}}
+
+      iex> create_picture(%{field: bad_value})
+      {:error, %Ecto.Changeset{}}
+
+  """
+  def create_picture(attrs \\ %{}) do
+    %Picture{}
+    |> Picture.changeset(attrs)
+    |> Repo.insert()
+  end
+
+  @doc """
+  Updates a picture.
+
+  ## Examples
+
+      iex> update_picture(picture, %{field: new_value})
+      {:ok, %Picture{}}
+
+      iex> update_picture(picture, %{field: bad_value})
+      {:error, %Ecto.Changeset{}}
+
+  """
+  def update_picture(%Picture{} = picture, attrs) do
+    picture
+    |> Picture.changeset(attrs)
+    |> Repo.update()
+  end
+
+  @doc """
+  Deletes a Picture.
+
+  ## Examples
+
+      iex> delete_picture(picture)
+      {:ok, %Picture{}}
+
+      iex> delete_picture(picture)
+      {:error, %Ecto.Changeset{}}
+
+  """
+  def delete_picture(%Picture{} = picture) do
+    Repo.delete(picture)
+  end
+
+  @doc """
+  Returns an `%Ecto.Changeset{}` for tracking picture changes.
+
+  ## Examples
+
+      iex> change_picture(picture)
+      %Ecto.Changeset{source: %Picture{}}
+
+  """
+  def change_picture(%Picture{} = picture) do
+    Picture.changeset(picture, %{})
+  end
+end