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Contents
# encoding: utf-8
require 'rails_best_practices/reviews/review'
module RailsBestPractices
module Reviews
# Review a controller file to make sure that complex model logic should not exist in controller, should be moved into a model.
#
# See the best practice details here http://rails-bestpractices.com/posts/7-move-model-logic-into-the-model.
#
# Implementation:
#
# Review process:
# check all method defines in the controller files,
# if there are multiple method calls apply to one receiver,
# and the receiver is a variable,
# then they are complex model logic, and they should be moved into model.
class MoveModelLogicIntoModelReview < Review
interesting_nodes :def
interesting_files CONTROLLER_FILES
url "http://rails-bestpractices.com/posts/7-move-model-logic-into-the-model"
def initialize(options = {})
super()
@use_count = options['use_count'] || 4
end
# check method define node to see if there are multiple method calls on one varialbe.
#
# it will check every call nodes,
# if there are multiple call nodes who have the same receiver,
# and the receiver is a variable,
# then these method calls and attribute assignments should be moved into model.
add_callback :start_def do |node|
node.grep_nodes(sexp_type: [:call, :assign]) do |child_node|
remember_variable_use_count(child_node)
end
variable_use_count.each do |variable_node, count|
add_error "move model logic into model (#{variable_node} use_count > #{@use_count})" if count > @use_count
end
reset_variable_use_count
end
end
end
end
Version data entries
10 entries across 10 versions & 1 rubygems