Show number of participants

Signed-off-by: Thomas Citharel <tcit@tcit.fr>

lib/mobilizon/events/events.ex

@@ -747,6 +747,28 @@ defmodule Mobilizon.Events do
     |> paginate(page, limit)
   end
 
+  def count_approved_participants(id) do
+    query =
+      from(
+        p in Participant,
+        where: p.role != ^:not_approved,
+        where: p.event_id == ^id
+      )
+
+    Repo.aggregate(query, :count, :id)
+  end
+
+  def count_unapproved_participants(id) do
+    query =
+      from(
+        p in Participant,
+        where: p.role == ^:not_approved,
+        where: p.event_id == ^id
+      )
+
+    Repo.aggregate(query, :count, :id)
+  end
+
   @doc """
   Returns the list of participations for an actor.
 

lib/mobilizon_web/resolvers/event.ex

@@ -6,7 +6,7 @@ defmodule MobilizonWeb.Resolvers.Event do
   alias Mobilizon.Addresses
   alias Mobilizon.Addresses.Address
   alias Mobilizon.Events
-  alias Mobilizon.Events.{Event, Participant}
+  alias Mobilizon.Events.{Event, Participant, EventOptions}
   alias Mobilizon.Media.Picture
   alias Mobilizon.Users.User
   alias Mobilizon.Actors
@@ -51,6 +51,14 @@ defmodule MobilizonWeb.Resolvers.Event do
     {:ok, Mobilizon.Events.list_participants_for_event(uuid, 1, 10)}
   end
 
+  def stats_participants_for_event(%Event{id: id}, _args, _resolution) do
+    {:ok,
+     %{
+       approved: Mobilizon.Events.count_approved_participants(id),
+       unapproved: Mobilizon.Events.count_unapproved_participants(id)
+     }}
+  end
+
   @doc """
   List related events
   """

lib/mobilizon_web/schema/event.ex

@@ -54,6 +54,8 @@ defmodule MobilizonWeb.Schema.EventType do
 
     field(:category, :string, description: "The event's category")
 
+    field(:participant_stats, :participant_stats, resolve: &Event.stats_participants_for_event/3)
+
     field(:participants, list_of(:participant),
       resolve: &Event.list_participants_for_event/3,
       description: "The event's participants"
@@ -92,6 +94,11 @@ defmodule MobilizonWeb.Schema.EventType do
     value(:cancelled, description: "The event is cancelled")
   end
 
+  object :participant_stats do
+    field(:approved, :integer, description: "The number of approved participants")
+    field(:unapproved, :integer, description: "The number of unapproved participants")
+  end
+
   object :event_offer do
     field(:price, :float, description: "The price amount for this offer")
     field(:price_currency, :string, description: "The currency for this price offer")