Class: Tr8n::LanguageCaseRule

Inherits:
Base
  • Object
show all
Defined in:
lib/tr8n/language_case_rule.rb

Overview

– Copyright © 2014 Michael Berkovich, TranslationExchange.com

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the “Software”), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. ++

Instance Attribute Summary

Attributes inherited from Base

#attributes

Instance Method Summary collapse

Methods inherited from Base

attributes, belongs_to, has_many, #hash_value, hash_value, #initialize, #method_missing, #to_hash, #update_attributes

Constructor Details

This class inherits a constructor from Tr8n::Base

Dynamic Method Handling

This class handles dynamic methods through the method_missing method in the class Tr8n::Base

Instance Method Details

#apply(value) ⇒ Object 



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# File 'lib/tr8n/language_case_rule.rb', line 65

def apply(value)
  value = value.to_s
  return value if operations.nil?

  re = Tr8n::RulesEngine::Evaluator.new
  re.evaluate(["let", "@value", value])

  re.evaluate(operations_expression)
rescue Exception => ex
  Tr8n.logger.error("Failed to apply language case rule [case: #{language_case.id}] [rule: #{id}] [conds: #{conditions_expression}] [opers: #{operations_expression}]: #{ex.message}")
  value
end

#conditions_expression ⇒ Object 



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# File 'lib/tr8n/language_case_rule.rb', line 29

def conditions_expression
  self.attributes[:conditions_expression] ||= Tr8n::RulesEngine::Parser.new(conditions).parse
end

#evaluate(value, object = nil) ⇒ Object

Evaluation Methods



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# File 'lib/tr8n/language_case_rule.rb', line 49

def evaluate(value, object = nil)
  return false if conditions.nil?

  re = Tr8n::RulesEngine::Evaluator.new
  re.evaluate(["let", "@value", value])

  gender_variables(object).each do |key, value|
    re.evaluate(["let", key, value])
  end

  re.evaluate(conditions_expression)
rescue Exception => ex
  Tr8n.logger.error("Failed to evaluate language case #{conditions}: #{ex.message}")
  value
end

#gender_variables(object) ⇒ Object 



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# File 'lib/tr8n/language_case_rule.rb', line 37

def gender_variables(object)
  return {} unless conditions.index('@gender')
  return {"@gender" => "unknown"} unless object
  context = language_case.language.context_by_keyword(:gender)
  return {"@gender" => "unknown"} unless context
  context.vars(object)
end

#operations_expression ⇒ Object 



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# File 'lib/tr8n/language_case_rule.rb', line 33

def operations_expression
  self.attributes[:operations_expression] ||= Tr8n::RulesEngine::Parser.new(operations).parse
end

#to_cache_hash ⇒ Object

Cache Methods



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# File 'lib/tr8n/language_case_rule.rb', line 82

def to_cache_hash
  to_hash(:id, :description, :examples, :conditions, :conditions_expression, :operations, :operations_expression)
end