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# frozen_string_literal: true
# Finder for retrieving the pending todos of a user, optionally filtered using
# various fields.
#
# While this finder is a bit more verbose compared to use
# `where(params.slice(...))`, it allows us to decouple the input parameters from
# the actual column names. For example, if we ever decide to use separate
# columns for target types (e.g. `issue_id`, `merge_request_id`, etc), we no
# longer need to change _everything_ that uses this finder. Instead, we just
# change the various `by_*` methods in this finder, without having to touch
# everything that uses it.
class PendingTodosFinder
attr_reader :users, :params
# users - The list of users to retrieve the todos for.
# params - A Hash containing columns and values to use for filtering todos.
def initialize(users, params = {})
@users = users
@params = params
end
def execute
todos = Todo.for_user(users)
todos = todos.pending
todos = by_project(todos)
todos = by_target_id(todos)
todos = by_target_type(todos)
todos = by_discussion(todos)
todos = by_commit_id(todos)
by_action(todos)
end
def by_project(todos)
if (id = params[:project_id])
todos.for_project(id)
else
todos
end
end
def by_target_id(todos)
if (id = params[:target_id])
todos.for_target(id)
else
todos
end
end
def by_target_type(todos)
if (type = params[:target_type])
todos.for_type(type)
else
todos
end
end
def by_commit_id(todos)
if (id = params[:commit_id])
todos.for_commit(id)
else
todos
end
end
def by_discussion(todos)
if (discussion = params[:discussion])
todos.for_note(discussion.notes)
else
todos
end
end
def by_action(todos)
return todos if params[:action].blank?
todos.for_action(params[:action])
end
end
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