105 lines
1.6 KiB
Elixir
105 lines
1.6 KiB
Elixir
defmodule Cannery.Tags do
|
|
@moduledoc """
|
|
The Tags context.
|
|
"""
|
|
|
|
import Ecto.Query, warn: false
|
|
alias Cannery.Repo
|
|
|
|
alias Cannery.Tags.Tag
|
|
|
|
@doc """
|
|
Returns the list of tags.
|
|
|
|
## Examples
|
|
|
|
iex> list_tags()
|
|
[%Tag{}, ...]
|
|
|
|
"""
|
|
def list_tags do
|
|
Repo.all(Tag)
|
|
end
|
|
|
|
@doc """
|
|
Gets a single tag.
|
|
|
|
Raises `Ecto.NoResultsError` if the Tag does not exist.
|
|
|
|
## Examples
|
|
|
|
iex> get_tag!(123)
|
|
%Tag{}
|
|
|
|
iex> get_tag!(456)
|
|
** (Ecto.NoResultsError)
|
|
|
|
"""
|
|
def get_tag!(id), do: Repo.get!(Tag, id)
|
|
|
|
@doc """
|
|
Creates a tag.
|
|
|
|
## Examples
|
|
|
|
iex> create_tag(%{field: value})
|
|
{:ok, %Tag{}}
|
|
|
|
iex> create_tag(%{field: bad_value})
|
|
{:error, %Ecto.Changeset{}}
|
|
|
|
"""
|
|
def create_tag(attrs \\ %{}) do
|
|
%Tag{}
|
|
|> Tag.changeset(attrs)
|
|
|> Repo.insert()
|
|
end
|
|
|
|
@doc """
|
|
Updates a tag.
|
|
|
|
## Examples
|
|
|
|
iex> update_tag(tag, %{field: new_value})
|
|
{:ok, %Tag{}}
|
|
|
|
iex> update_tag(tag, %{field: bad_value})
|
|
{:error, %Ecto.Changeset{}}
|
|
|
|
"""
|
|
def update_tag(%Tag{} = tag, attrs) do
|
|
tag
|
|
|> Tag.changeset(attrs)
|
|
|> Repo.update()
|
|
end
|
|
|
|
@doc """
|
|
Deletes a tag.
|
|
|
|
## Examples
|
|
|
|
iex> delete_tag(tag)
|
|
{:ok, %Tag{}}
|
|
|
|
iex> delete_tag(tag)
|
|
{:error, %Ecto.Changeset{}}
|
|
|
|
"""
|
|
def delete_tag(%Tag{} = tag) do
|
|
Repo.delete(tag)
|
|
end
|
|
|
|
@doc """
|
|
Returns an `%Ecto.Changeset{}` for tracking tag changes.
|
|
|
|
## Examples
|
|
|
|
iex> change_tag(tag)
|
|
%Ecto.Changeset{data: %Tag{}}
|
|
|
|
"""
|
|
def change_tag(%Tag{} = tag, attrs \\ %{}) do
|
|
Tag.changeset(tag, attrs)
|
|
end
|
|
end
|