mirror of
https://github.com/philomena-dev/philomena.git
synced 2024-11-23 12:08:00 +01:00
Deduplicate common subscription logic
This commit is contained in:
parent
01da4f4fdb
commit
5678862038
8 changed files with 254 additions and 321 deletions
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@ -8,7 +8,10 @@ defmodule Philomena.Channels do
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alias Philomena.Channels.AutomaticUpdater
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alias Philomena.Channels.Channel
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alias Philomena.Notifications
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use Philomena.Subscriptions,
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actor_types: ~w(Channel LivestreamChannel),
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id_name: :channel_id
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@doc """
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Updates all the tracked channels for which an update scheme is known.
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@ -115,69 +118,4 @@ defmodule Philomena.Channels do
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def change_channel(%Channel{} = channel) do
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Channel.changeset(channel, %{})
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end
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alias Philomena.Channels.Subscription
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@doc """
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Creates a subscription.
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## Examples
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iex> create_subscription(%{field: value})
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{:ok, %Subscription{}}
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iex> create_subscription(%{field: bad_value})
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{:error, %Ecto.Changeset{}}
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"""
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def create_subscription(_channel, nil), do: {:ok, nil}
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def create_subscription(channel, user) do
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%Subscription{channel_id: channel.id, user_id: user.id}
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|> Subscription.changeset(%{})
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|> Repo.insert(on_conflict: :nothing)
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end
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@doc """
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Deletes a Subscription.
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## Examples
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iex> delete_subscription(subscription)
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{:ok, %Subscription{}}
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iex> delete_subscription(subscription)
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{:error, %Ecto.Changeset{}}
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"""
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def delete_subscription(channel, user) do
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clear_notification(channel, user)
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%Subscription{channel_id: channel.id, user_id: user.id}
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|> Repo.delete()
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end
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def subscribed?(_channel, nil), do: false
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def subscribed?(channel, user) do
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Subscription
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|> where(channel_id: ^channel.id, user_id: ^user.id)
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|> Repo.exists?()
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end
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def subscriptions(_channels, nil), do: %{}
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def subscriptions(channels, user) do
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channel_ids = Enum.map(channels, & &1.id)
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Subscription
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|> where([s], s.channel_id in ^channel_ids and s.user_id == ^user.id)
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|> Repo.all()
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|> Map.new(&{&1.channel_id, true})
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end
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def clear_notification(channel, user) do
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Notifications.delete_unread_notification("Channel", channel.id, user)
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Notifications.delete_unread_notification("LivestreamChannel", channel.id, user)
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end
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end
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@ -19,7 +19,6 @@ defmodule Philomena.Comments do
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alias Philomena.NotificationWorker
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alias Philomena.Versions
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alias Philomena.Reports
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alias Philomena.Users.User
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@doc """
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Gets a single comment.
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@ -58,24 +57,17 @@ defmodule Philomena.Comments do
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Image
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|> where(id: ^image.id)
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image_lock_query =
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lock(image_query, "FOR UPDATE")
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Multi.new()
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|> Multi.one(:image, image_lock_query)
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|> Multi.insert(:comment, comment)
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|> Multi.update_all(:image, image_query, inc: [comments_count: 1])
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|> maybe_create_subscription_on_reply(image, attribution[:user])
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|> Multi.update_all(:update_image, image_query, inc: [comments_count: 1])
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|> Images.maybe_subscribe_on(:image, attribution[:user], :watch_on_reply)
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|> Repo.transaction()
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end
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defp maybe_create_subscription_on_reply(multi, image, %User{watch_on_reply: true} = user) do
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multi
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|> Multi.run(:subscribe, fn _repo, _changes ->
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Images.create_subscription(image, user)
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end)
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end
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defp maybe_create_subscription_on_reply(multi, _image, _user) do
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multi
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end
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def notify_comment(comment) do
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Exq.enqueue(Exq, "notifications", NotificationWorker, ["Comments", comment.id])
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end
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@ -7,8 +7,10 @@ defmodule Philomena.Forums do
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alias Philomena.Repo
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alias Philomena.Forums.Forum
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alias Philomena.Forums.Subscription
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alias Philomena.Notifications
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use Philomena.Subscriptions,
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actor_types: ~w(Forum),
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id_name: :forum_id
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@doc """
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Returns the list of forums.
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@ -103,45 +105,4 @@ defmodule Philomena.Forums do
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def change_forum(%Forum{} = forum) do
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Forum.changeset(forum, %{})
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end
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def subscribed?(_forum, nil), do: false
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def subscribed?(forum, user) do
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Subscription
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|> where(forum_id: ^forum.id, user_id: ^user.id)
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|> Repo.exists?()
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end
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def create_subscription(_forum, nil), do: {:ok, nil}
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def create_subscription(forum, user) do
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%Subscription{forum_id: forum.id, user_id: user.id}
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|> Subscription.changeset(%{})
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|> Repo.insert(on_conflict: :nothing)
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end
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@doc """
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Deletes a Subscription.
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## Examples
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iex> delete_subscription(subscription)
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{:ok, %Subscription{}}
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iex> delete_subscription(subscription)
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{:error, %Ecto.Changeset{}}
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"""
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def delete_subscription(forum, user) do
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clear_notification(forum, user)
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%Subscription{forum_id: forum.id, user_id: user.id}
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|> Repo.delete()
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end
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def clear_notification(_forum, nil), do: nil
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def clear_notification(forum, user) do
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Notifications.delete_unread_notification("Forum", forum.id, user)
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end
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end
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@ -18,6 +18,10 @@ defmodule Philomena.Galleries do
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alias Philomena.Notifications.{Notification, UnreadNotification}
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alias Philomena.Images
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use Philomena.Subscriptions,
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actor_types: ~w(Gallery),
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id_name: :gallery_id
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@doc """
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Gets a single gallery.
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@ -356,55 +360,4 @@ defmodule Philomena.Galleries do
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defp position_order(%{order_position_asc: true}), do: [asc: :position]
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defp position_order(_gallery), do: [desc: :position]
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alias Philomena.Galleries.Subscription
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def subscribed?(_gallery, nil), do: false
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def subscribed?(gallery, user) do
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Subscription
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|> where(gallery_id: ^gallery.id, user_id: ^user.id)
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|> Repo.exists?()
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end
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@doc """
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Creates a subscription.
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## Examples
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iex> create_subscription(%{field: value})
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{:ok, %Subscription{}}
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iex> create_subscription(%{field: bad_value})
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{:error, %Ecto.Changeset{}}
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"""
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def create_subscription(gallery, user) do
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%Subscription{gallery_id: gallery.id, user_id: user.id}
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|> Subscription.changeset(%{})
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|> Repo.insert(on_conflict: :nothing)
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end
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@doc """
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Deletes a Subscription.
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## Examples
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iex> delete_subscription(subscription)
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{:ok, %Subscription{}}
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iex> delete_subscription(subscription)
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{:error, %Ecto.Changeset{}}
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"""
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def delete_subscription(gallery, user) do
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%Subscription{gallery_id: gallery.id, user_id: user.id}
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|> Repo.delete()
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end
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def clear_notification(_gallery, nil), do: nil
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def clear_notification(gallery, user) do
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Notifications.delete_unread_notification("Gallery", gallery.id, user)
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end
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end
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@ -37,6 +37,10 @@ defmodule Philomena.Images do
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alias Philomena.Galleries.Interaction
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alias Philomena.Users.User
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use Philomena.Subscriptions,
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actor_types: ~w(Image),
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id_name: :image_id
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@doc """
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Gets a single image.
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@ -103,7 +107,7 @@ defmodule Philomena.Images do
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{:ok, count}
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end)
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|> maybe_create_subscription_on_upload(attribution[:user])
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|> maybe_subscribe_on(:image, attribution[:user], :watch_on_upload)
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|> Repo.transaction()
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|> case do
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{:ok, %{image: image}} = result ->
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@ -157,17 +161,6 @@ defmodule Philomena.Images do
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Logger.error("Aborting upload of #{image.id} after #{retry_count} retries")
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end
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defp maybe_create_subscription_on_upload(multi, %User{watch_on_upload: true} = user) do
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multi
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|> Multi.run(:subscribe, fn _repo, %{image: image} ->
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create_subscription(image, user)
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end)
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end
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defp maybe_create_subscription_on_upload(multi, _user) do
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multi
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end
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def approve_image(image) do
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image
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|> Repo.preload(:user)
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@ -868,53 +861,6 @@ defmodule Philomena.Images do
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alias Philomena.Images.Subscription
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def subscribed?(_image, nil), do: false
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def subscribed?(image, user) do
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Subscription
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|> where(image_id: ^image.id, user_id: ^user.id)
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|> Repo.exists?()
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end
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@doc """
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Creates a subscription.
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## Examples
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iex> create_subscription(%{field: value})
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{:ok, %Subscription{}}
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iex> create_subscription(%{field: bad_value})
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{:error, %Ecto.Changeset{}}
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"""
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def create_subscription(_image, nil), do: {:ok, nil}
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def create_subscription(image, user) do
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%Subscription{image_id: image.id, user_id: user.id}
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|> Subscription.changeset(%{})
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|> Repo.insert(on_conflict: :nothing)
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end
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@doc """
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Deletes a subscription.
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## Examples
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iex> delete_subscription(subscription)
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{:ok, %Subscription{}}
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iex> delete_subscription(subscription)
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{:error, %Ecto.Changeset{}}
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"""
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def delete_subscription(image, user) do
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clear_notification(image, user)
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%Subscription{image_id: image.id, user_id: user.id}
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|> Repo.delete()
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end
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def migrate_subscriptions(source, target) do
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subscriptions =
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Subscription
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@ -968,10 +914,4 @@ defmodule Philomena.Images do
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}
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)
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end
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def clear_notification(_image, nil), do: nil
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def clear_notification(image, user) do
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Notifications.delete_unread_notification("Image", image.id, user)
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end
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end
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@ -20,7 +20,6 @@ defmodule Philomena.Posts do
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alias Philomena.Versions
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alias Philomena.Reports
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alias Philomena.Reports.Report
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alias Philomena.Users.User
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@doc """
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Gets a single post.
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@ -66,7 +65,7 @@ defmodule Philomena.Posts do
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|> where(id: ^topic.forum_id)
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Multi.new()
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|> Multi.all(:topic_lock, topic_lock_query)
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|> Multi.one(:topic, topic_lock_query)
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|> Multi.run(:post, fn repo, _ ->
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last_position =
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Post
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@ -95,7 +94,7 @@ defmodule Philomena.Posts do
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{:ok, count}
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end)
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|> maybe_create_subscription_on_reply(topic, attributes[:user])
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|> Topics.maybe_subscribe_on(:topic, attributes[:user], :watch_on_reply)
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|> Repo.transaction()
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|> case do
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{:ok, %{post: post}} = result ->
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@ -108,17 +107,6 @@ defmodule Philomena.Posts do
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end
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end
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defp maybe_create_subscription_on_reply(multi, topic, %User{watch_on_reply: true} = user) do
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multi
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|> Multi.run(:subscribe, fn _repo, _changes ->
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Topics.create_subscription(topic, user)
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end)
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end
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defp maybe_create_subscription_on_reply(multi, _topic, _user) do
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multi
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end
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def notify_post(post) do
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Exq.enqueue(Exq, "notifications", NotificationWorker, ["Posts", post.id])
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end
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224
lib/philomena/subscriptions.ex
Normal file
224
lib/philomena/subscriptions.ex
Normal file
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@ -0,0 +1,224 @@
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defmodule Philomena.Subscriptions do
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@moduledoc """
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Common subscription logic.
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`use Philomena.Subscriptions` requires the following properties:
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- `:actor_types`
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This is the "actor_type" in the notifications table.
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For `Philomena.Images`, this would be `["Image"]`.
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- `:id_name`
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This is the name of the object field in the subscription table.
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For `Philomena.Images`, this would be `:image_id`.
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The following functions and documentation are produced in the calling module:
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- `subscribed?/2`
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- `subscriptions/2`
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- `create_subscription/2`
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- `delete_subscription/2`
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- `clear_notification/2`
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- `maybe_subscribe_on/4`
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"""
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import Ecto.Query, warn: false
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alias Ecto.Multi
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alias Philomena.Notifications
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alias Philomena.Repo
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defmacro __using__(opts) do
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# For Philomena.Images, this yields ["Image"]
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actor_types = Keyword.fetch!(opts, :actor_types)
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# For Philomena.Images, this yields :image_id
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field_name = Keyword.fetch!(opts, :id_name)
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# For Philomena.Images, this yields Philomena.Images.Subscription
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subscription_module = Module.concat(__CALLER__.module, Subscription)
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quote do
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@doc """
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Returns whether the user is currently subscribed to this object.
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## Examples
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iex> subscribed?(object, user)
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false
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"""
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def subscribed?(object, user) do
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Philomena.Subscriptions.subscribed?(
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unquote(subscription_module),
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unquote(field_name),
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object,
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user
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)
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end
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@doc """
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Returns a map containing whether the user is currently subscribed to any of
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the provided objects.
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## Examples
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iex> subscriptions([%{id: 1}, %{id: 2}], user)
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%{2 => true}
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"""
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def subscriptions(objects, user) do
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Philomena.Subscriptions.subscriptions(
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unquote(subscription_module),
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unquote(field_name),
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objects,
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user
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)
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end
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@doc """
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Creates a subscription.
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## Examples
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iex> create_subscription(object, user)
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{:ok, %Subscription{}}
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iex> create_subscription(object, user)
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{:error, %Ecto.Changeset{}}
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"""
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def create_subscription(object, user) do
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Philomena.Subscriptions.create_subscription(
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unquote(subscription_module),
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unquote(field_name),
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object,
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user
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)
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end
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@doc """
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Deletes a subscription and removes notifications for it.
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## Examples
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iex> delete_subscription(object, user)
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{:ok, %Subscription{}}
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iex> delete_subscription(object, user)
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{:error, %Ecto.Changeset{}}
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"""
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def delete_subscription(object, user) do
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clear_notification(object, user)
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Philomena.Subscriptions.delete_subscription(
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unquote(subscription_module),
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unquote(field_name),
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object,
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user
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)
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end
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@doc """
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Deletes any active notifications for a subscription.
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## Examples
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||||
iex> clear_notification(object, user)
|
||||
:ok
|
||||
|
||||
"""
|
||||
def clear_notification(object, user) do
|
||||
for type <- unquote(actor_types) do
|
||||
Philomena.Subscriptions.clear_notification(type, object, user)
|
||||
end
|
||||
|
||||
:ok
|
||||
end
|
||||
|
||||
@doc """
|
||||
Creates a subscription inside the `m:Ecto.Multi` flow if `user` is not nil
|
||||
and `field` in `user` is `true`.
|
||||
|
||||
Valid values for field are `:watch_on_reply`, `:watch_on_upload`, `:watch_on_new_topic`.
|
||||
|
||||
## Examples
|
||||
|
||||
iex> maybe_subscribe_on(multi, :image, user, :watch_on_reply)
|
||||
%Ecto.Multi{}
|
||||
|
||||
iex> maybe_subscribe_on(multi, :topic, nil, :watch_on_reply)
|
||||
%Ecto.Multi{}
|
||||
|
||||
"""
|
||||
def maybe_subscribe_on(multi, change_name, user, field) do
|
||||
Philomena.Subscriptions.maybe_subscribe_on(multi, __MODULE__, change_name, user, field)
|
||||
end
|
||||
end
|
||||
end
|
||||
|
||||
@doc false
|
||||
def subscribed?(subscription_module, field_name, object, user) do
|
||||
case user do
|
||||
nil ->
|
||||
false
|
||||
|
||||
_ ->
|
||||
subscription_module
|
||||
|> where([s], field(s, ^field_name) == ^object.id and s.user_id == ^user.id)
|
||||
|> Repo.exists?()
|
||||
end
|
||||
end
|
||||
|
||||
@doc false
|
||||
def subscriptions(subscription_module, field_name, objects, user) do
|
||||
case user do
|
||||
nil ->
|
||||
%{}
|
||||
|
||||
_ ->
|
||||
object_ids = Enum.map(objects, & &1.id)
|
||||
|
||||
subscription_module
|
||||
|> where([s], field(s, ^field_name) in ^object_ids and s.user_id == ^user.id)
|
||||
|> Repo.all()
|
||||
|> Map.new(&{Map.fetch!(&1, field_name), true})
|
||||
end
|
||||
end
|
||||
|
||||
@doc false
|
||||
def create_subscription(subscription_module, field_name, object, user) do
|
||||
struct!(subscription_module, [{field_name, object.id}, {:user_id, user.id}])
|
||||
|> subscription_module.changeset(%{})
|
||||
|> Repo.insert(on_conflict: :nothing)
|
||||
end
|
||||
|
||||
@doc false
|
||||
def delete_subscription(subscription_module, field_name, object, user) do
|
||||
struct!(subscription_module, [{field_name, object.id}, {:user_id, user.id}])
|
||||
|> Repo.delete()
|
||||
end
|
||||
|
||||
@doc false
|
||||
def clear_notification(type, object, user) do
|
||||
case user do
|
||||
nil -> nil
|
||||
_ -> Notifications.delete_unread_notification(type, object.id, user)
|
||||
end
|
||||
end
|
||||
|
||||
@doc false
|
||||
def maybe_subscribe_on(multi, module, change_name, user, field)
|
||||
when field in [:watch_on_reply, :watch_on_upload, :watch_on_new_topic] do
|
||||
case user do
|
||||
%{^field => true} ->
|
||||
Multi.run(multi, :subscribe, fn _repo, changes ->
|
||||
object = Map.fetch!(changes, change_name)
|
||||
module.create_subscription(object, user)
|
||||
end)
|
||||
|
||||
_ ->
|
||||
multi
|
||||
end
|
||||
end
|
||||
end
|
|
@ -12,7 +12,10 @@ defmodule Philomena.Topics do
|
|||
alias Philomena.Posts
|
||||
alias Philomena.Notifications
|
||||
alias Philomena.NotificationWorker
|
||||
alias Philomena.Users.User
|
||||
|
||||
use Philomena.Subscriptions,
|
||||
actor_types: ~w(Topic),
|
||||
id_name: :topic_id
|
||||
|
||||
@doc """
|
||||
Gets a single topic.
|
||||
|
@ -70,7 +73,7 @@ defmodule Philomena.Topics do
|
|||
|
||||
{:ok, count}
|
||||
end)
|
||||
|> maybe_create_subscription_on_new_topic(attribution[:user])
|
||||
|> maybe_subscribe_on(:topic, attribution[:user], :watch_on_new_topic)
|
||||
|> Repo.transaction()
|
||||
|> case do
|
||||
{:ok, %{topic: topic}} = result ->
|
||||
|
@ -84,17 +87,6 @@ defmodule Philomena.Topics do
|
|||
end
|
||||
end
|
||||
|
||||
defp maybe_create_subscription_on_new_topic(multi, %User{watch_on_new_topic: true} = user) do
|
||||
multi
|
||||
|> Multi.run(:subscribe, fn _repo, %{topic: topic} ->
|
||||
create_subscription(topic, user)
|
||||
end)
|
||||
end
|
||||
|
||||
defp maybe_create_subscription_on_new_topic(multi, _user) do
|
||||
multi
|
||||
end
|
||||
|
||||
def notify_topic(topic, post) do
|
||||
Exq.enqueue(Exq, "notifications", NotificationWorker, ["Topics", [topic.id, post.id]])
|
||||
end
|
||||
|
@ -173,55 +165,6 @@ defmodule Philomena.Topics do
|
|||
Topic.changeset(topic, %{})
|
||||
end
|
||||
|
||||
alias Philomena.Topics.Subscription
|
||||
|
||||
def subscribed?(_topic, nil), do: false
|
||||
|
||||
def subscribed?(topic, user) do
|
||||
Subscription
|
||||
|> where(topic_id: ^topic.id, user_id: ^user.id)
|
||||
|> Repo.exists?()
|
||||
end
|
||||
|
||||
@doc """
|
||||
Creates a subscription.
|
||||
|
||||
## Examples
|
||||
|
||||
iex> create_subscription(%{field: value})
|
||||
{:ok, %Subscription{}}
|
||||
|
||||
iex> create_subscription(%{field: bad_value})
|
||||
{:error, %Ecto.Changeset{}}
|
||||
|
||||
"""
|
||||
def create_subscription(_topic, nil), do: {:ok, nil}
|
||||
|
||||
def create_subscription(topic, user) do
|
||||
%Subscription{topic_id: topic.id, user_id: user.id}
|
||||
|> Subscription.changeset(%{})
|
||||
|> Repo.insert(on_conflict: :nothing)
|
||||
end
|
||||
|
||||
@doc """
|
||||
Deletes a Subscription.
|
||||
|
||||
## Examples
|
||||
|
||||
iex> delete_subscription(subscription)
|
||||
{:ok, %Subscription{}}
|
||||
|
||||
iex> delete_subscription(subscription)
|
||||
{:error, %Ecto.Changeset{}}
|
||||
|
||||
"""
|
||||
def delete_subscription(topic, user) do
|
||||
clear_notification(topic, user)
|
||||
|
||||
%Subscription{topic_id: topic.id, user_id: user.id}
|
||||
|> Repo.delete()
|
||||
end
|
||||
|
||||
def stick_topic(topic) do
|
||||
Topic.stick_changeset(topic)
|
||||
|> Repo.update()
|
||||
|
@ -299,10 +242,4 @@ defmodule Philomena.Topics do
|
|||
|> Topic.title_changeset(attrs)
|
||||
|> Repo.update()
|
||||
end
|
||||
|
||||
def clear_notification(_topic, nil), do: nil
|
||||
|
||||
def clear_notification(topic, user) do
|
||||
Notifications.delete_unread_notification("Topic", topic.id, user)
|
||||
end
|
||||
end
|
||||
|
|
Loading…
Reference in a new issue