Chatwoot/app/finders/conversation_finder.rb
Sony Mathew fc7b84d612
Chore: Fix N+1 queries in dashboard side (#1254)
* Chore: Fix N+1 queries in dashboard side

Fixed a couple of N+1 queries fired on the dashboard side of
the app to improve performance.
2020-09-19 12:46:34 +05:30

102 lines
2.4 KiB
Ruby

class ConversationFinder
attr_reader :current_user, :current_account, :params
DEFAULT_STATUS = 'open'.freeze
# assumptions
# inbox_id if not given, take from all conversations, else specific to inbox
# assignee_type if not given, take 'all'
# conversation_status if not given, take 'open'
# response of this class will be of type
# {conversations: [array of conversations], count: {open: count, resolved: count}}
# params
# assignee_type, inbox_id, :status
def initialize(current_user, params)
@current_user = current_user
@current_account = current_user.account
@params = params
end
def perform
set_inboxes
set_assignee_type
find_all_conversations
filter_by_status
filter_by_labels if params[:labels]
mine_count, unassigned_count, all_count = set_count_for_all_conversations
filter_by_assignee_type
{
conversations: conversations,
count: {
mine_count: mine_count,
unassigned_count: unassigned_count,
all_count: all_count
}
}
end
private
def set_inboxes
if params[:inbox_id]
@inbox_ids = current_account.inboxes.where(id: params[:inbox_id])
else
if @current_user.administrator?
@inbox_ids = current_account.inboxes.pluck(:id)
elsif @current_user.agent?
@inbox_ids = @current_user.assigned_inboxes.pluck(:id)
end
end
end
def set_assignee_type
@assignee_type = params[:assignee_type]
end
def find_all_conversations
@conversations = current_account.conversations.includes(
:assignee, :inbox, :taggings, contact: [:avatar_attachment]
).where(inbox_id: @inbox_ids)
end
def filter_by_assignee_type
case @assignee_type
when 'me'
@conversations = @conversations.assigned_to(current_user)
when 'unassigned'
@conversations = @conversations.unassigned
end
@conversations
end
def filter_by_status
@conversations = @conversations.where(status: params[:status] || DEFAULT_STATUS)
end
def filter_by_labels
@conversations = @conversations.tagged_with(params[:labels], any: true)
end
def set_count_for_all_conversations
[
@conversations.assigned_to(current_user).count,
@conversations.unassigned.count,
@conversations.count
]
end
def current_page
params[:page]
end
def conversations
current_page ? @conversations.latest.page(current_page) : @conversations.latest
end
end