110 lines
1.8 KiB
Elixir
110 lines
1.8 KiB
Elixir
defmodule Outlook.Authors do
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@moduledoc """
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The Authors context.
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"""
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import Ecto.Query, warn: false
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alias Outlook.Repo
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alias Outlook.Authors.Author
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@doc """
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Returns the list of authors.
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## Examples
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iex> list_authors()
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[%Author{}, ...]
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"""
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def list_authors do
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Repo.all(Author)
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end
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@doc """
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Gets a single author.
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Raises `Ecto.NoResultsError` if the Author does not exist.
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## Examples
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iex> get_author!(123)
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%Author{}
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iex> get_author!(456)
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** (Ecto.NoResultsError)
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"""
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def get_author!(id), do: Repo.get!(Author, id)
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def get_author_with_articles!(id) do
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Repo.get!(Author, id)
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|> Repo.preload([:articles])
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end
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@doc """
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Creates a author.
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## Examples
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iex> create_author(%{field: value})
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{:ok, %Author{}}
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iex> create_author(%{field: bad_value})
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{:error, %Ecto.Changeset{}}
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"""
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def create_author(attrs \\ %{}) do
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%Author{}
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|> Author.changeset(attrs)
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|> Repo.insert()
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end
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@doc """
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Updates a author.
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## Examples
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iex> update_author(author, %{field: new_value})
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{:ok, %Author{}}
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iex> update_author(author, %{field: bad_value})
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{:error, %Ecto.Changeset{}}
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"""
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def update_author(%Author{} = author, attrs) do
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author
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|> Author.changeset(attrs)
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|> Repo.update()
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end
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@doc """
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Deletes a author.
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## Examples
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iex> delete_author(author)
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{:ok, %Author{}}
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iex> delete_author(author)
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{:error, %Ecto.Changeset{}}
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"""
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def delete_author(%Author{} = author) do
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Repo.delete(author)
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end
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@doc """
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Returns an `%Ecto.Changeset{}` for tracking author changes.
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## Examples
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iex> change_author(author)
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%Ecto.Changeset{data: %Author{}}
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"""
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def change_author(%Author{} = author, attrs \\ %{}) do
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Author.changeset(author, attrs)
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end
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end
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