91 lines
2.1 KiB
Ruby
91 lines
2.1 KiB
Ruby
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# Copyright (C) 2012-2016 Zammad Foundation, http://zammad-foundation.org/
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module ApplicationModel::CleansParam
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extend ActiveSupport::Concern
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# methods defined here are going to extend the class, not the instance of it
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class_methods do
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=begin
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remove all not used model attributes of params
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result = Model.param_cleanup(params)
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for object creation, ignore id's
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result = Model.param_cleanup(params, true)
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returns
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result = params # params with valid attributes of model
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=end
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def param_cleanup(params, new_object = false)
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if params.respond_to?('permit!')
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params.permit!
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end
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if params.nil?
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raise ArgumentError, "No params for #{self}!"
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end
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data = {}
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params.each { |key, value|
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data[key.to_sym] = value
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}
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# ignore id for new objects
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if new_object && params[:id]
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data.delete(:id)
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end
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# only use object attributes
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clean_params = {}
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new.attributes.each { |attribute, _value|
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next if !data.key?(attribute.to_sym)
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# check reference records, referenced by _id attributes
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reflect_on_all_associations.map { |assoc|
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class_name = assoc.options[:class_name]
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next if !class_name
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name = "#{assoc.name}_id".to_sym
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next if !data.key?(name)
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next if data[name].blank?
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next if assoc.klass.lookup(id: data[name])
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raise ArgumentError, "Invalid value for param '#{name}': #{data[name].inspect}"
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}
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clean_params[attribute.to_sym] = data[attribute.to_sym]
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}
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# we do want to set this via database
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filter_unused_params(clean_params)
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end
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private
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=begin
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remove all not used params of object (per default :updated_at, :created_at, :updated_by_id and :created_by_id)
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result = Model.filter_unused_params(params)
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returns
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result = params # params without listed attributes
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=end
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def filter_unused_params(data)
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# we do want to set this via database
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[:action, :controller, :updated_at, :created_at, :updated_by_id, :created_by_id, :updated_by, :created_by].each { |key|
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data.delete(key)
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}
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data
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end
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end
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end
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