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https://github.com/mgerb/classic-wow-forums
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61 lines
1.7 KiB
Elixir
61 lines
1.7 KiB
Elixir
defmodule MyApp.Data.Reply do
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use Ecto.Schema
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import Ecto.Changeset
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alias MyApp.Repo
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alias MyApp.Data
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@derive {Poison.Encoder, except: [:__meta__]}
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schema "reply" do
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field :user_id, :integer # references :user
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field :thread_id, :integer # references :thread
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field :content, :string
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field :edited, :boolean, default: false
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field :quote, :boolean, default: false
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timestamps()
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end
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defp insert_changeset(reply, params \\ %{}) do
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reply
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|> cast(params, [:user_id, :thread_id, :content, :quote])
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|> validate_required([:user_id, :thread_id, :content])
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|> foreign_key_constraint(:user_id)
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|> foreign_key_constraint(:thread_id)
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end
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# allow user to update reply
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defp user_update_changeset(reply, params \\ %{}) do
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reply
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|> cast(params, [:content])
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|> force_change(:edited, true) # set edited flag on update
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|> validate_required([:content])
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end
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@spec insert(map) :: {:ok, map} | {:error, map}
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def insert(params) do
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insert_changeset(%Data.Reply{}, params)
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|> Repo.insert
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|> Data.Util.process_insert_or_update
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end
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@spec user_update(map) :: {:ok, map} | {:error, map}
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def user_update(params) do
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id = Map.get(params, "id")
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user_id = Map.get(params, "user_id")
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if is_nil(id) || is_nil(user_id) do
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{:error, "Invalid reply"}
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else
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Repo.get_by(Data.Reply, %{id: id, user_id: user_id})
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|> process_user_update(params)
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end
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end
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defp process_user_update(reply, _params) when is_nil(reply), do: {:error, "Invalid reply"}
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defp process_user_update(reply, params) when not is_nil(reply) do
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user_update_changeset(reply, params)
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|> Repo.update
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|> Data.Util.process_insert_or_update
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end
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end
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