Add pagination to events, groups, partipants to an event and categories

lists
This commit is contained in:
Chocobozzz 2018-12-14 11:23:36 +01:00
parent 72dbc8c261
commit 48eb72cd4c
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GPG Key ID: 583A612D890159BE
11 changed files with 92 additions and 72 deletions

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@ -20,11 +20,13 @@ defmodule Mobilizon.Actors.Actor do
"""
use Ecto.Schema
import Ecto.Changeset
alias Mobilizon.Actors
alias Mobilizon.Actors.{Actor, User, Follower, Member}
alias Mobilizon.Events.Event
import Ecto.Query
import Mobilizon.Ecto
alias Mobilizon.Repo
require Logger
@ -232,18 +234,15 @@ defmodule Mobilizon.Actors.Actor do
If actor A and C both follow actor B, actor B's followers are A and C
"""
def get_followers(%Actor{id: actor_id} = _actor, page \\ 1, limit \\ 10) do
start = (page - 1) * limit
def get_followers(%Actor{id: actor_id} = _actor, page \\ nil, limit \\ nil) do
Repo.all(
from(
a in Actor,
join: f in Follower,
on: a.id == f.actor_id,
where: f.target_actor_id == ^actor_id,
limit: ^limit,
offset: ^start
where: f.target_actor_id == ^actor_id
)
|> paginate(page, limit)
)
end
@ -252,18 +251,15 @@ defmodule Mobilizon.Actors.Actor do
If actor A follows actor B and C, actor A's followings are B and B
"""
def get_followings(%Actor{id: actor_id} = _actor, page \\ 1, limit \\ 10) do
start = (page - 1) * limit
def get_followings(%Actor{id: actor_id} = _actor, page \\ nil, limit \\ nil) do
Repo.all(
from(
a in Actor,
join: f in Follower,
on: a.id == f.target_actor_id,
where: f.actor_id == ^actor_id,
limit: ^limit,
offset: ^start
where: f.actor_id == ^actor_id
)
|> paginate(page, limit)
)
end

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@ -4,6 +4,8 @@ defmodule Mobilizon.Actors do
"""
import Ecto.Query, warn: false
import Mobilizon.Ecto
alias Mobilizon.Repo
alias Mobilizon.Actors.{Actor, Bot, Member, Follower, User}
@ -150,8 +152,14 @@ defmodule Mobilizon.Actors do
@doc """
List the groups
"""
def list_groups do
Repo.all(from(a in Actor, where: a.type == ^:Group))
def list_groups(page \\ nil, limit \\ nil) do
Repo.all(
from(
a in Actor,
where: a.type == ^:Group
)
|> paginate(page, limit)
)
end
def get_group_by_name(name) do
@ -446,21 +454,18 @@ defmodule Mobilizon.Actors do
Find actors by their name or displayed name
"""
@spec find_actors_by_username_or_name(String.t(), integer(), integer()) :: list(Actor.t())
def find_actors_by_username_or_name(username, page \\ 1, limit \\ 10)
def find_actors_by_username_or_name(username, page \\ nil, limit \\ nil)
def find_actors_by_username_or_name("", _page, _limit), do: []
def find_actors_by_username_or_name(username, page, limit) do
start = (page - 1) * limit
Repo.all(
from(
a in Actor,
limit: ^limit,
offset: ^start,
where:
ilike(a.preferred_username, ^like_sanitize(username)) or
ilike(a.name, ^like_sanitize(username))
)
|> paginate(page, limit)
)
end

34
lib/mobilizon/ecto.ex Normal file
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@ -0,0 +1,34 @@
defmodule Mobilizon.Ecto do
@moduledoc """
Mobilizon Ecto utils
"""
import Ecto.Query, warn: false
@doc """
Add limit and offset to the query
"""
def paginate(query, page \\ 1, size \\ 10)
def paginate(query, page, _size) when is_nil(page), do: paginate(query)
def paginate(query, page, size) when is_nil(size), do: paginate(query, page)
def paginate(query, page, size) do
from(query,
limit: ^size,
offset: ^((page - 1) * size)
)
end
def increment_slug(slug) do
case List.pop_at(String.split(slug, "-"), -1) do
{nil, _} ->
slug
{suffix, slug_parts} ->
case Integer.parse(suffix) do
{id, _} -> Enum.join(slug_parts, "-") <> "-" <> Integer.to_string(id + 1)
:error -> slug <> "-1"
end
end
end
end

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@ -4,6 +4,7 @@ defmodule Mobilizon.Events do
"""
import Ecto.Query, warn: false
import Mobilizon.Ecto
alias Mobilizon.Repo
alias Mobilizon.Events.{Event, Comment, Participant}
@ -18,16 +19,12 @@ defmodule Mobilizon.Events do
queryable
end
def get_events_for_actor(%Actor{id: actor_id} = _actor, page \\ 1, limit \\ 10) do
start = (page - 1) * limit
def get_events_for_actor(%Actor{id: actor_id} = _actor, page \\ nil, limit \\ nil) do
query =
from(
e in Event,
where: e.organizer_actor_id == ^actor_id,
limit: ^limit,
order_by: [desc: :id],
offset: ^start,
preload: [
:organizer_actor,
:category,
@ -38,6 +35,7 @@ defmodule Mobilizon.Events do
:physical_address
]
)
|> paginate(page, limit)
events = Repo.all(query)
@ -186,15 +184,10 @@ defmodule Mobilizon.Events do
[%Event{}, ...]
"""
def list_events(page \\ 1, limit \\ 10) do
start = (page - 1) * limit
def list_events(page \\ nil, limit \\ nil) do
query =
from(e in Event,
limit: ^limit,
offset: ^start,
preload: [:organizer_actor]
)
from(e in Event, preload: [:organizer_actor])
|> paginate(page, limit)
Repo.all(query)
end
@ -202,20 +195,18 @@ defmodule Mobilizon.Events do
@doc """
Find events by name
"""
def find_events_by_name(name, page \\ 1, limit \\ 10)
def find_events_by_name(name, page \\ nil, limit \\ nil)
def find_events_by_name("", page, limit), do: list_events(page, limit)
def find_events_by_name(name, page, limit) do
name = String.trim(name)
start = (page - 1) * limit
query =
from(e in Event,
limit: ^limit,
offset: ^start,
where: ilike(e.title, ^like_sanitize(name)),
preload: [:organizer_actor]
)
|> paginate(page, limit)
Repo.all(query)
end
@ -309,8 +300,11 @@ defmodule Mobilizon.Events do
[%Category{}, ...]
"""
def list_categories do
Repo.all(Category)
def list_categories(page \\ nil, limit \\ nil) do
Repo.all(
Category
|> paginate(page, limit)
)
end
@doc """
@ -519,7 +513,7 @@ defmodule Mobilizon.Events do
[%Participant{}, ...]
"""
def list_participants_for_event(uuid) do
def list_participants_for_event(uuid, page \\ nil, limit \\ nil) do
Repo.all(
from(
p in Participant,
@ -528,6 +522,7 @@ defmodule Mobilizon.Events do
where: e.uuid == ^uuid,
preload: [:actor]
)
|> paginate(page, limit)
)
end
@ -846,16 +841,12 @@ defmodule Mobilizon.Events do
Repo.all(Comment)
end
def get_comments_for_actor(%Actor{id: actor_id}, page \\ 1, limit \\ 10) do
start = (page - 1) * limit
def get_comments_for_actor(%Actor{id: actor_id}, page \\ nil, limit \\ nil) do
query =
from(
c in Comment,
where: c.actor_id == ^actor_id,
limit: ^limit,
order_by: [desc: :id],
offset: ^start,
preload: [
:actor,
:in_reply_to_comment,
@ -863,6 +854,7 @@ defmodule Mobilizon.Events do
:event
]
)
|> paginate(page, limit)
comments = Repo.all(query)

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@ -25,7 +25,7 @@ defmodule Mobilizon.Events.Tag.TitleSlug do
_tag ->
slug
|> Mobilizon.Slug.increment_slug()
|> Mobilizon.Ecto.increment_slug()
|> build_unique_slug(changeset)
end
end

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@ -1,17 +0,0 @@
defmodule Mobilizon.Slug do
@moduledoc """
Common functions for slug generation
"""
def increment_slug(slug) do
case List.pop_at(String.split(slug, "-"), -1) do
{nil, _} ->
slug
{suffix, slug_parts} ->
case Integer.parse(suffix) do
{id, _} -> Enum.join(slug_parts, "-") <> "-" <> Integer.to_string(id + 1)
:error -> slug <> "-1"
end
end
end
end

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@ -2,9 +2,9 @@ defmodule MobilizonWeb.Resolvers.Category do
require Logger
alias Mobilizon.Actors.User
def list_categories(_parent, _args, _resolution) do
def list_categories(_parent, %{page: page, limit: limit}, _resolution) do
categories =
Mobilizon.Events.list_categories()
Mobilizon.Events.list_categories(page, limit)
|> Enum.map(fn category ->
urls = MobilizonWeb.Uploaders.Category.urls({category.picture, category})
Map.put(category, :picture, %{url: urls.original, url_thumbnail: urls.thumb})

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@ -2,8 +2,8 @@ defmodule MobilizonWeb.Resolvers.Event do
alias Mobilizon.Service.ActivityPub
alias Mobilizon.Actors
def list_events(_parent, _args, _resolution) do
{:ok, Mobilizon.Events.list_events()}
def list_events(_parent, %{page: page, limit: limit}, _resolution) do
{:ok, Mobilizon.Events.list_events(page, limit)}
end
def find_event(_parent, %{uuid: uuid}, _resolution) do
@ -26,8 +26,8 @@ defmodule MobilizonWeb.Resolvers.Event do
@doc """
List participants for event (through an event request)
"""
def list_participants_for_event(%{uuid: uuid}, _args, _resolution) do
{:ok, Mobilizon.Events.list_participants_for_event(uuid)}
def list_participants_for_event(%{uuid: uuid}, %{page: page, limit: limit}, _resolution) do
{:ok, Mobilizon.Events.list_participants_for_event(uuid, page, limit)}
end
@doc """

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@ -20,8 +20,8 @@ defmodule MobilizonWeb.Resolvers.Group do
@doc """
Lists all groups
"""
def list_groups(_parent, _args, _resolution) do
{:ok, Actors.list_groups()}
def list_groups(_parent, %{page: page, limit: limit}, _resolution) do
{:ok, Actors.list_groups(page, limit)}
end
@doc """

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@ -395,11 +395,15 @@ defmodule MobilizonWeb.Schema do
query do
@desc "Get all events"
field :events, list_of(:event) do
arg(:page, :integer, default_value: 1)
arg(:limit, :integer, default_value: 10)
resolve(&Resolvers.Event.list_events/3)
end
@desc "Get all groups"
field :groups, list_of(:group) do
arg(:page, :integer, default_value: 1)
arg(:limit, :integer, default_value: 10)
resolve(&Resolvers.Group.list_groups/3)
end
@ -420,6 +424,8 @@ defmodule MobilizonWeb.Schema do
@desc "Get all participants for an event uuid"
field :participants, list_of(:participant) do
arg(:uuid, non_null(:uuid))
arg(:page, :integer, default_value: 1)
arg(:limit, :integer, default_value: 10)
resolve(&Resolvers.Event.list_participants_for_event/3)
end
@ -453,6 +459,8 @@ defmodule MobilizonWeb.Schema do
@desc "Get the list of categories"
field :categories, non_null(list_of(:category)) do
arg(:page, :integer, default_value: 1)
arg(:limit, :integer, default_value: 10)
resolve(&Resolvers.Category.list_categories/3)
end
end

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@ -361,7 +361,9 @@ defmodule Mobilizon.Service.ActivityPub do
Return all public activities (events & comments) for an actor
"""
@spec fetch_public_activities_for_actor(Actor.t(), integer(), integer()) :: {list(), integer()}
def fetch_public_activities_for_actor(%Actor{} = actor, page \\ 1, limit \\ 10) do
def fetch_public_activities_for_actor(actor, page \\ nil, limit \\ nil)
def fetch_public_activities_for_actor(%Actor{} = actor, page, limit) do
case actor.type do
:Person ->
{:ok, events, total_events} = Events.get_events_for_actor(actor, page, limit)