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classic-wow-forums/lib/myapp/data/reply.ex

92 lines
2.7 KiB
Elixir

defmodule MyApp.Data.Reply do
use Ecto.Schema
import Ecto.Changeset
import Ecto.Query
alias MyApp.Repo
alias MyApp.Data
@derive {Poison.Encoder, except: [:__meta__]}
schema "reply" do
field :user_id, :integer # references :user
field :thread_id, :integer # references :thread
field :content, :string
field :quote_id, :integer
field :edited, :boolean, default: false
field :hidden, :boolean, default: false
has_one :user, Data.User, foreign_key: :id, references: :user_id
timestamps(type: :utc_datetime)
end
defp insert_changeset(reply, params \\ %{}) do
reply
|> cast(params, [:user_id, :thread_id, :content, :quote_id])
|> validate_required([:user_id, :thread_id, :content])
|> foreign_key_constraint(:user_id)
|> foreign_key_constraint(:thread_id)
end
# allow user to update reply
@spec insert(map) :: {:ok, map} | {:error, map}
def insert(params) do
{:ok, data} = Repo.transaction(fn ->
thread = Repo.get_by(Data.Thread, %{ id: Map.get(params, "thread_id")})
if !is_nil(thread) && !thread.locked do
{:ok, data} = insert_changeset(%Data.Reply{}, params)
|> Repo.insert
|> Data.Util.process_insert_or_update
|> update_thread_new_reply
{:ok, Map.drop(data, [:user])} # drop user because we can't encode it if it's not preloaded
else
{:error, "thread locked"}
end
end)
data
end
defp update_thread_new_reply({:error, error}), do: {:error, error}
defp update_thread_new_reply({:ok, reply}) do
thread_id = Map.get(reply, :thread_id)
user_id = Map.get(reply, :user_id)
query = from t in Data.Thread, where: t.id == ^thread_id,
update: [set: [last_reply_id: ^user_id, updated_at: ^DateTime.utc_now], inc: [reply_count: 1]]
case Repo.update_all(query, []) do
nil -> {:error, "update thread error"}
{1, _} -> {:ok, reply}
end
end
@spec user_update(map) :: {:ok, String.t} | {:error, String.t}
def user_update(params) do
id = Map.get(params, "id")
user_id = Map.get(params, "user_id")
content = Map.get(params, "content")
if is_nil(id) || is_nil(user_id) || is_nil(content) do
{:error, "Invalid reply"}
else
query = from r in Data.Reply,
where: r.id == ^id and r.user_id == ^user_id,
update: [set: [content: ^content, edited: true]]
case Repo.update_all(query, []) do
nil -> {:error, "update reply error"}
{1, _} -> {:ok, "ok"}
end
end
end
@spec mod_update(map) :: {:ok, any}
def mod_update(params) do
Repo.transaction(fn ->
reply = Repo.get_by(Data.Reply, %{ id: Map.get(params, "id")})
reply
|> cast(params, [:hidden])
|> Repo.update
end)
end
end