feat: more stuff around persistence of data

lib/bds/media/media.ex

@@ -0,0 +1,64 @@
+defmodule BDS.Media.Media do
+  @moduledoc false
+
+  use Ecto.Schema
+  import Ecto.Changeset
+
+  alias BDS.Types.StringList
+
+  @primary_key {:id, :string, autogenerate: false}
+  @foreign_key_type :string
+
+  schema "media" do
+    belongs_to :project, BDS.Projects.Project, type: :string
+
+    field :filename, :string
+    field :original_name, :string
+    field :mime_type, :string
+    field :size, :integer
+    field :width, :integer
+    field :height, :integer
+    field :title, :string
+    field :alt, :string
+    field :caption, :string
+    field :author, :string
+    field :language, :string
+    field :file_path, :string
+    field :sidecar_path, :string
+    field :checksum, :string
+    field :tags, StringList, default: []
+    field :created_at, :integer
+    field :updated_at, :integer
+  end
+
+  def changeset(media, attrs) do
+    media
+    |> cast(
+      attrs,
+      [
+        :id,
+        :project_id,
+        :filename,
+        :original_name,
+        :mime_type,
+        :size,
+        :width,
+        :height,
+        :title,
+        :alt,
+        :caption,
+        :author,
+        :language,
+        :file_path,
+        :sidecar_path,
+        :checksum,
+        :tags,
+        :created_at,
+        :updated_at
+      ],
+      empty_values: [nil]
+    )
+    |> validate_required([:id, :project_id, :filename, :original_name, :mime_type, :size, :file_path, :sidecar_path, :created_at, :updated_at])
+    |> assoc_constraint(:project)
+  end
+end