150 lines
3.5 KiB
Elixir
150 lines
3.5 KiB
Elixir
defmodule Cannery.Tags do
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@moduledoc """
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The Tags context.
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"""
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import Ecto.Query, warn: false
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import CanneryWeb.Gettext
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alias Cannery.{Accounts.User, Repo, Tags.Tag}
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@doc """
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Returns the list of tags.
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## Examples
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iex> list_tags(%User{id: 123})
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[%Tag{}, ...]
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iex> list_tags("cool", %User{id: 123})
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[%Tag{name: "my cool tag"}, ...]
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"""
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@spec list_tags(User.t()) :: [Tag.t()]
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@spec list_tags(search :: nil | String.t(), User.t()) :: [Tag.t()]
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def list_tags(search \\ nil, user)
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def list_tags(search, %{id: user_id}) when search |> is_nil() or search == "",
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do: Repo.all(from t in Tag, where: t.user_id == ^user_id, order_by: t.name)
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def list_tags(search, %{id: user_id}) when search |> is_binary() do
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trimmed_search = String.trim(search)
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Repo.all(
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from t in Tag,
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where: t.user_id == ^user_id,
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where:
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fragment(
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"search @@ websearch_to_tsquery('english', ?)",
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^trimmed_search
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),
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order_by: {
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:desc,
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fragment(
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"ts_rank_cd(search, websearch_to_tsquery('english', ?), 4)",
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^trimmed_search
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)
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}
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)
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end
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@doc """
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Gets a single tag.
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## Examples
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iex> get_tag(123, %User{id: 123})
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{:ok, %Tag{}}
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iex> get_tag(456, %User{id: 123})
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{:error, "tag not found"}
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"""
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@spec get_tag(Tag.id(), User.t()) :: {:ok, Tag.t()} | {:error, String.t()}
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def get_tag(id, %User{id: user_id}) do
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Repo.one(from t in Tag, where: t.id == ^id and t.user_id == ^user_id)
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|> case do
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nil -> {:error, dgettext("errors", "Tag not found")}
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tag -> {:ok, tag}
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end
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end
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@doc """
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Gets a single tag.
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Raises `Ecto.NoResultsError` if the Tag does not exist.
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## Examples
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iex> get_tag!(123, %User{id: 123})
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%Tag{}
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iex> get_tag!(456, %User{id: 123})
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** (Ecto.NoResultsError)
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"""
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@spec get_tag!(Tag.id(), User.t()) :: Tag.t()
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def get_tag!(id, %User{id: user_id}),
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do: Repo.one!(from t in Tag, where: t.id == ^id and t.user_id == ^user_id)
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@doc """
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Creates a tag.
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## Examples
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iex> create_tag(%{field: value}, %User{id: 123})
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{:ok, %Tag{}}
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iex> create_tag(%{field: bad_value}, %User{id: 123})
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{:error, %Changeset{}}
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"""
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@spec create_tag(attrs :: map(), User.t()) ::
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{:ok, Tag.t()} | {:error, Tag.changeset()}
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def create_tag(attrs, %User{} = user),
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do: %Tag{} |> Tag.create_changeset(user, attrs) |> Repo.insert()
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@doc """
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Updates a tag.
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## Examples
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iex> update_tag(tag, %{field: new_value}, %User{id: 123})
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{:ok, %Tag{}}
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iex> update_tag(tag, %{field: bad_value}, %User{id: 123})
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{:error, %Changeset{}}
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"""
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@spec update_tag(Tag.t(), attrs :: map(), User.t()) ::
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{:ok, Tag.t()} | {:error, Tag.changeset()}
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def update_tag(%Tag{user_id: user_id} = tag, attrs, %User{id: user_id}),
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do: tag |> Tag.update_changeset(attrs) |> Repo.update()
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@doc """
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Deletes a tag.
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## Examples
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iex> delete_tag(tag, %User{id: 123})
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{:ok, %Tag{}}
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iex> delete_tag(tag, %User{id: 123})
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{:error, %Changeset{}}
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"""
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@spec delete_tag(Tag.t(), User.t()) :: {:ok, Tag.t()} | {:error, Tag.changeset()}
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def delete_tag(%Tag{user_id: user_id} = tag, %User{id: user_id}), do: tag |> Repo.delete()
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@doc """
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Deletes a tag.
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## Examples
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iex> delete_tag!(tag, %User{id: 123})
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%Tag{}
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"""
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@spec delete_tag!(Tag.t(), User.t()) :: Tag.t()
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def delete_tag!(%Tag{user_id: user_id} = tag, %User{id: user_id}), do: tag |> Repo.delete!()
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end
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