discourse/lib/flag_query.rb

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require 'ostruct'
module FlagQuery
def self.plugin_post_custom_fields
@plugin_post_custom_fields ||= {}
end
# Allow plugins to add custom fields to the flag views
def self.register_plugin_post_custom_field(field, plugin)
plugin_post_custom_fields[field] = plugin
end
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def self.flagged_posts_report(current_user, opts = nil)
opts ||= {}
offset = opts[:offset] || 0
per_page = opts[:per_page] || 25
actions = flagged_post_actions(opts)
guardian = Guardian.new(current_user)
if !guardian.is_admin?
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actions = actions.where(
'category_id IN (:allowed_category_ids) OR archetype = :private_message',
allowed_category_ids: guardian.allowed_category_ids,
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private_message: Archetype.private_message
)
end
total_rows = actions.count
post_ids_relation = actions.limit(per_page)
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.offset(offset)
.group(:post_id)
.order('MIN(post_actions.created_at) DESC')
if opts[:filter] != "old" && SiteSetting.min_flags_staff_visibility > 1
post_ids_relation = post_ids_relation.having("count(*) >= ?", SiteSetting.min_flags_staff_visibility)
end
post_ids = post_ids_relation.pluck(:post_id).uniq
posts = DB.query(<<~SQL, post_ids: post_ids)
SELECT p.id,
p.cooked as excerpt,
p.raw,
p.user_id,
p.topic_id,
p.post_number,
p.reply_count,
p.hidden,
p.deleted_at,
p.user_deleted,
NULL as post_actions,
NULL as post_action_ids,
(SELECT created_at FROM post_revisions WHERE post_id = p.id AND user_id = p.user_id ORDER BY created_at DESC LIMIT 1) AS last_revised_at,
(SELECT COUNT(*) FROM post_actions WHERE (disagreed_at IS NOT NULL OR agreed_at IS NOT NULL OR deferred_at IS NOT NULL) AND post_id = p.id)::int AS previous_flags_count
FROM posts p
WHERE p.id in (:post_ids)
SQL
post_lookup = {}
user_ids = Set.new
topic_ids = Set.new
posts.each do |p|
user_ids << p.user_id
topic_ids << p.topic_id
p.excerpt = Post.excerpt(p.excerpt)
post_lookup[p.id] = p
end
post_actions = actions.order('post_actions.created_at DESC')
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.includes(related_post: { topic: { ordered_posts: :user } })
.where(post_id: post_ids)
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all_post_actions = []
post_actions.each do |pa|
post = post_lookup[pa.post_id]
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if opts[:rest_api]
post.post_action_ids ||= []
else
post.post_actions ||= []
end
# TODO: add serializer so we can skip this
action = {
id: pa.id,
post_id: pa.post_id,
user_id: pa.user_id,
post_action_type_id: pa.post_action_type_id,
created_at: pa.created_at,
disposed_by_id: pa.disposed_by_id,
disposed_at: pa.disposed_at,
disposition: pa.disposition,
related_post_id: pa.related_post_id,
targets_topic: pa.targets_topic,
staff_took_action: pa.staff_took_action
}
action[:name_key] = PostActionType.types.key(pa.post_action_type_id)
if pa.related_post && pa.related_post.topic
conversation = {}
related_topic = pa.related_post.topic
if response = related_topic.ordered_posts[0]
conversation[:response] = {
excerpt: excerpt(response.cooked),
user_id: response.user_id
}
user_ids << response.user_id
if reply = related_topic.ordered_posts[1]
conversation[:reply] = {
excerpt: excerpt(reply.cooked),
user_id: reply.user_id
}
user_ids << reply.user_id
conversation[:has_more] = related_topic.posts_count > 2
end
end
action.merge!(permalink: related_topic.relative_url, conversation: conversation)
end
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if opts[:rest_api]
post.post_action_ids << action[:id]
all_post_actions << action
else
post.post_actions << action
end
user_ids << pa.user_id
user_ids << pa.disposed_by_id if pa.disposed_by_id
end
post_custom_field_names = []
plugin_post_custom_fields.each do |field, plugin|
post_custom_field_names << field if plugin.enabled?
end
post_custom_fields = Post.custom_fields_for_ids(post_ids, post_custom_field_names)
# maintain order
posts = post_ids.map { |id| post_lookup[id] }
# TODO: add serializer so we can skip this
posts.map! do |post|
result = post.to_h
if cfs = post_custom_fields[post.id]
result[:custom_fields] = cfs
end
result
end
users = User.includes(:user_stat).where(id: user_ids.to_a).to_a
User.preload_custom_fields(users, User.whitelisted_user_custom_fields(guardian))
[
posts,
Topic.with_deleted.where(id: topic_ids.to_a).to_a,
users,
all_post_actions,
total_rows
]
end
def self.flagged_post_actions(opts = nil)
opts ||= {}
post_actions = PostAction.flags
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.joins("INNER JOIN posts ON posts.id = post_actions.post_id")
.joins("INNER JOIN topics ON topics.id = posts.topic_id")
.joins("LEFT JOIN users ON users.id = posts.user_id")
.where("posts.user_id > 0")
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if opts[:topic_id]
post_actions = post_actions.where("topics.id = ?", opts[:topic_id])
end
if opts[:user_id]
post_actions = post_actions.where("posts.user_id = ?", opts[:user_id])
end
if opts[:filter] == 'without_custom'
return post_actions.where(
'post_action_type_id' => PostActionType.flag_types_without_custom.values
)
end
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if opts[:filter] == "old"
post_actions.where("post_actions.disagreed_at IS NOT NULL OR
post_actions.deferred_at IS NOT NULL OR
post_actions.agreed_at IS NOT NULL")
else
post_actions.active
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.where("posts.deleted_at" => nil)
.where("topics.deleted_at" => nil)
end
end
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def self.flagged_topics
results = DB.query(<<~SQL)
SELECT pa.post_action_type_id,
pa.post_id,
p.topic_id,
pa.created_at AS last_flag_at,
p.user_id
FROM post_actions AS pa
INNER JOIN posts AS p ON pa.post_id = p.id
INNER JOIN topics AS t ON t.id = p.topic_id
WHERE pa.post_action_type_id IN (#{PostActionType.notify_flag_type_ids.join(',')})
AND pa.disagreed_at IS NULL
AND pa.deferred_at IS NULL
AND pa.agreed_at IS NULL
AND pa.deleted_at IS NULL
AND p.user_id > 0
AND p.deleted_at IS NULL
AND t.deleted_at IS NULL
ORDER BY pa.created_at DESC
SQL
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ft_by_id = {}
counts_by_post = {}
user_ids = Set.new
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results.each do |pa|
ft = ft_by_id[pa.topic_id] ||= OpenStruct.new(
topic_id: pa.topic_id,
flag_counts: {},
user_ids: Set.new,
last_flag_at: pa.last_flag_at,
meets_minimum: false
)
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counts_by_post[pa.post_id] ||= 0
sum = counts_by_post[pa.post_id] += 1
ft.meets_minimum = true if sum >= SiteSetting.min_flags_staff_visibility
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ft.flag_counts[pa.post_action_type_id] ||= 0
ft.flag_counts[pa.post_action_type_id] += 1
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ft.user_ids << pa.user_id
user_ids << pa.user_id
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end
all_topics = Topic.where(id: ft_by_id.keys).to_a
all_topics.each { |t| ft_by_id[t.id].topic = t }
flagged_topics = ft_by_id.values.select { |ft| ft.meets_minimum }
Topic.preload_custom_fields(all_topics, TopicList.preloaded_custom_fields)
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{
flagged_topics: flagged_topics,
users: User.where(id: user_ids)
}
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end
private
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def self.excerpt(cooked)
excerpt = Post.excerpt(cooked, 200, keep_emoji_images: true)
# remove the first link if it's the first node
fragment = Nokogiri::HTML.fragment(excerpt)
if fragment.children.first == fragment.css("a:first").first && fragment.children.first
fragment.children.first.remove
end
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fragment.to_html.strip
end
end