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31 lines
988 B
31 lines
988 B
6 years ago
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class Ecs::CreateCourseTargetsService < ApplicationService
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include AcceptsNestedAttributesHelper
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attr_reader :ec_course, :params
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def initialize(ec_course, params)
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@ec_course = ec_course
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@params = params
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end
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def call
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accepts_attributes = build_accepts_nested_attributes(
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ec_course, ec_course.ec_course_targets,
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params[:course_targets],
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&method(:deal_course_target_attribute!) # 相当于方法后面写代码块，然后把参数传入方法: a(&method(:b)) == a { |c| b(c) }
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)
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ec_course.assign_attributes(ec_course_targets_attributes: accepts_attributes)
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ec_course.save!
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ec_course
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end
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private
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def deal_course_target_attribute!(target)
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target[:content] = target[:content].to_s.strip
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target[:weight] = target[:weight].to_f.round(2)
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target[:ec_graduation_subitem_course_targets_attributes] =
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[{ ec_graduation_subitem_id: target.delete(:graduation_subitem_id) }]
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end
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end
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