110 lines
1.9 KiB
Elixir
110 lines
1.9 KiB
Elixir
defmodule Nulla.Announces do
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@moduledoc """
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The Announces context.
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"""
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import Ecto.Query, warn: false
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alias Nulla.Repo
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alias Nulla.Announces.Announce
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@doc """
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Returns the list of announces.
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## Examples
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iex> list_announces()
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[%Announce{}, ...]
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"""
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def list_announces do
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Repo.all(Announce)
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end
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def list_announces_by(by) when is_map(by) or is_list(by) do
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Announce
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|> where(^by)
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|> Repo.all()
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end
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@doc """
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Gets a single announce.
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Raises `Ecto.NoResultsError` if the Announce does not exist.
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## Examples
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iex> get_announce!(123)
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%Announce{}
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iex> get_announce!(456)
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** (Ecto.NoResultsError)
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"""
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def get_announce!(id), do: Repo.get!(Announce, id)
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@doc """
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Creates a announce.
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## Examples
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iex> create_announce(%{field: value})
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{:ok, %Announce{}}
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iex> create_announce(%{field: bad_value})
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{:error, %Ecto.Changeset{}}
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"""
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def create_announce(attrs \\ %{}) do
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%Announce{}
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|> Announce.changeset(attrs)
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|> Repo.insert()
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end
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@doc """
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Updates a announce.
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## Examples
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iex> update_announce(announce, %{field: new_value})
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{:ok, %Announce{}}
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iex> update_announce(announce, %{field: bad_value})
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{:error, %Ecto.Changeset{}}
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"""
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def update_announce(%Announce{} = announce, attrs) do
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announce
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|> Announce.changeset(attrs)
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|> Repo.update()
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end
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@doc """
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Deletes a announce.
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## Examples
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iex> delete_announce(announce)
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{:ok, %Announce{}}
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iex> delete_announce(announce)
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{:error, %Ecto.Changeset{}}
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"""
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def delete_announce(%Announce{} = announce) do
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Repo.delete(announce)
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end
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@doc """
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Returns an `%Ecto.Changeset{}` for tracking announce changes.
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## Examples
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iex> change_announce(announce)
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%Ecto.Changeset{data: %Announce{}}
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"""
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def change_announce(%Announce{} = announce, attrs \\ %{}) do
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Announce.changeset(announce, attrs)
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end
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end
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