66 lines
2.4 KiB
Ruby
66 lines
2.4 KiB
Ruby
# workaround for https://github.com/einzige/date_time_attribute/issues/14
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require 'date_time_attribute'
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module DateTimeAttributeValidate
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extend ActiveSupport::Concern
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include DateTimeAttribute
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module ClassMethods
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def date_time_attribute(*attributes)
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super
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attributes.each do |attribute|
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validate -> { self.send("#{attribute}_datetime_value_valid") }
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# allow resetting the field to nil
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before_validation do
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if self.instance_variable_get("@#{attribute}_is_set")
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date = self.instance_variable_get("@#{attribute}_date_value")
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time = self.instance_variable_get("@#{attribute}_time_value")
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if date.blank? && time.blank?
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self.send("#{attribute}=", nil)
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end
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end
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end
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# remember old date and time values
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define_method("#{attribute}_date_value=") do |val|
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self.instance_variable_set("@#{attribute}_is_set", true)
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self.instance_variable_set("@#{attribute}_date_value", val)
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self.send("#{attribute}_date=", val) rescue nil
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end
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define_method("#{attribute}_time_value=") do |val|
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self.instance_variable_set("@#{attribute}_is_set", true)
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self.instance_variable_set("@#{attribute}_time_value", val)
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self.send("#{attribute}_time=", val) rescue nil
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end
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# fallback to field when values are not set
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define_method("#{attribute}_date_value") do
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self.instance_variable_get("@#{attribute}_date_value") || self.send("#{attribute}_date").try {|e| e.strftime('%Y-%m-%d')}
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end
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define_method("#{attribute}_time_value") do
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self.instance_variable_get("@#{attribute}_time_value") || self.send("#{attribute}_time").try {|e| e.strftime('%H:%M')}
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end
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private
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# validate date and time
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define_method("#{attribute}_datetime_value_valid") do
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date = self.instance_variable_get("@#{attribute}_date_value")
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unless date.blank? || (Date.parse(date) rescue nil)
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errors.add(attribute, "is not a valid date") # @todo I18n
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end
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time = self.instance_variable_get("@#{attribute}_time_value")
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unless time.blank? || (Time.parse(time) rescue nil)
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errors.add(attribute, "is not a valid time") # @todo I18n
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end
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end
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end
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end
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end
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end
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