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A foundation for building Elixir Phoenix apps — SaaS, social networks, ERP systems, marketplaces, and more

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phoenix_kit lib modules storage schemas folder.ex
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lib/modules/storage/schemas/folder.ex 

defmodule PhoenixKit.Modules.Storage.Folder do

  @moduledoc """

  Schema for media folders.



  Provides hierarchical organization for media files. Folders are purely

  metadata — storage buckets are unaware of folder structure.

  """



  use Ecto.Schema

  use PhoenixKit.SchemaPrefix

  import Ecto.Changeset



  @primary_key {:uuid, UUIDv7, autogenerate: true}

  @foreign_key_type UUIDv7



  @folder_colors ~w(default red orange amber yellow lime green emerald teal cyan sky blue violet purple fuchsia pink rose)



  schema "phoenix_kit_media_folders" do

    field :name, :string

    field :description, :string

    field :color, :string, default: "default"

    field :trashed_at, :utc_datetime

    # Folder hero-header customization. The cover (background) and logo (icon)

    # are media files living in the folder, excluded from its visible listing.

    # `header_size` is small/medium/large; the `header_show_*` flags toggle each

    # header element. New folders default to a small header (less vertical

    # space up front). Existing rows keep their stored size — the DB column

    # default (v134, "medium") only applies to raw inserts, which never happen

    # here; folders are always created via changeset, so this default wins.

    field :cover_file_uuid, UUIDv7

    field :logo_file_uuid, UUIDv7

    field :header_size, :string, default: "small"

    field :header_show_title, :boolean, default: true

    field :header_show_icon, :boolean, default: true

    field :header_show_creator, :boolean, default: true

    field :header_show_date, :boolean, default: true

    field :header_show_file_count, :boolean, default: true

    field :header_show_description, :boolean, default: true

    field :header_show_background, :boolean, default: true



    belongs_to :parent, __MODULE__,

      foreign_key: :parent_uuid,

      references: :uuid



    belongs_to :user, PhoenixKit.Users.Auth.User,

      foreign_key: :user_uuid,

      references: :uuid



    has_many :children, __MODULE__,

      foreign_key: :parent_uuid,

      references: :uuid



    has_many :files, PhoenixKit.Modules.Storage.File,

      foreign_key: :folder_uuid,

      references: :uuid



    has_many :folder_links, PhoenixKit.Modules.Storage.FolderLink,

      foreign_key: :folder_uuid,

      references: :uuid



    timestamps(type: :utc_datetime)

  end



  def colors, do: @folder_colors



  def changeset(folder, attrs) do

    folder

    |> cast(attrs, [

      :name,

      :description,

      :parent_uuid,

      :user_uuid,

      :color,

      :trashed_at,

      :cover_file_uuid,

      :logo_file_uuid,

      :header_size,

      :header_show_title,

      :header_show_icon,

      :header_show_creator,

      :header_show_date,

      :header_show_file_count,

      :header_show_description,

      :header_show_background

    ])

    |> validate_required([:name])

    |> validate_inclusion(:color, @folder_colors)

    |> validate_inclusion(:header_size, ~w(small medium large))

    |> validate_length(:name, min: 1, max: 255)

    |> validate_length(:description, max: 2000)

    |> foreign_key_constraint(:parent_uuid)

    |> foreign_key_constraint(:user_uuid)

    |> unique_constraint([:name, :parent_uuid],

      name: :phoenix_kit_media_folders_name_parent_idx

    )

  end

end