Class: Bali::RulesForDsl

Inherits:
Object
  • Object
show all
Defined in:
lib/bali/dsl/rules_for_dsl.rb

Overview

this class is used to define DSL after rules_for is invoked.

Author:

  • Adam Pahlevi Baihaqi

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(map_rules_dsl) ⇒ RulesForDsl

Returns a new instance of RulesForDsl.



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# File 'lib/bali/dsl/rules_for_dsl.rb', line 7

def initialize(map_rules_dsl)
  @@lock = Mutex.new
  self.map_rules_dsl = map_rules_dsl
end

Instance Attribute Details

#current_rule_group ⇒ Object

Returns the value of attribute current_rule_group.



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# File 'lib/bali/dsl/rules_for_dsl.rb', line 5

def current_rule_group
  @current_rule_group
end

#map_rules_dsl ⇒ Object

Returns the value of attribute map_rules_dsl.



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# File 'lib/bali/dsl/rules_for_dsl.rb', line 4

def map_rules_dsl
  @map_rules_dsl
end

Instance Method Details

#can(*operations) ⇒ Object

process_auth_rules



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# File 'lib/bali/dsl/rules_for_dsl.rb', line 102

def can(*operations)
  process_auth_rules(:can, operations)
end

#can_all ⇒ Object 



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# File 'lib/bali/dsl/rules_for_dsl.rb', line 110

def can_all
  self.current_rule_group.zeus = true
  self.current_rule_group.plant = false
end

#cant(*operations) ⇒ Object 



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# File 'lib/bali/dsl/rules_for_dsl.rb', line 106

def cant(*operations)
  process_auth_rules(:cant, operations)
end

#cant_all ⇒ Object 



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# File 'lib/bali/dsl/rules_for_dsl.rb', line 115

def cant_all
  self.current_rule_group.plant = true
  self.current_rule_group.zeus = false
end

#current_rule_class ⇒ Object 



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# File 'lib/bali/dsl/rules_for_dsl.rb', line 12

def current_rule_class
  self.map_rules_dsl.current_rule_class
end

#describe(*params) ⇒ Object 



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# File 'lib/bali/dsl/rules_for_dsl.rb', line 16

def describe(*params)

  subtargets = []
  rules = {}

  params.each do |passed_argument|
    if passed_argument.is_a?(Symbol) || passed_argument.is_a?(String)
      subtargets << passed_argument
    elsif passed_argument.is_a?(NilClass)
      subtargets << passed_argument
    elsif passed_argument.is_a?(Array)
      subtargets += passed_argument
    elsif passed_argument.is_a?(Hash)
      rules = passed_argument
    else 
      raise Bali::DslError, "Allowed argument: symbol, string, nil and hash"
    end
  end

  target_class = self.map_rules_dsl.current_rule_class.target_class
  target_alias = self.map_rules_dsl.current_rule_class.alias_name

  subtargets.each do |subtarget|
    @@lock.synchronize do
      rule_group = self.current_rule_class.rules_for(subtarget)
      if rule_group.nil?
        rule_group = Bali::RuleGroup.new(target_class, target_alias, subtarget)
      end

      self.current_rule_group = rule_group

      if block_given?
        yield
      else
        # auth_val is either can or cant
        rules.each do |auth_val, operations|
          if operations.is_a?(Array)
            operations.each do |op|
              rule = Bali::Rule.new(auth_val, op)
              self.current_rule_group.add_rule(rule)
            end
          else
            operation = operations # well, basically is 1 only
            rule = Bali::Rule.new(auth_val, operation) 
            self.current_rule_group.add_rule(rule)
          end
        end # each rules
      end # block_given?

      # add current_rule_group
      self.map_rules_dsl.current_rule_class.add_rule_group(self.current_rule_group)
    end # mutex synchronize
  end # each subtarget
end

#process_auth_rules(auth_val, operations) ⇒ Object

to define can and cant is basically using this method



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# File 'lib/bali/dsl/rules_for_dsl.rb', line 72

def process_auth_rules(auth_val, operations)
  conditional_hash = nil
  
  # scan operations for options
  operations.each do |elm|
    if elm.is_a?(Hash)
      conditional_hash = elm
    end
  end

  if conditional_hash
    op = operations[0]
    rule = Bali::Rule.new(auth_val, op)
    if conditional_hash[:if] || conditional_hash["if"]
      rule.decider = conditional_hash[:if] || conditional_hash["if"]
      rule.decider_type = :if
    elsif conditional_hash[:unless] || conditional_hash[:unless]
      rule.decider = conditional_hash[:unless] || conditional_hash["unless"]
      rule.decider_type = :unless
    end
    self.current_rule_group.add_rule(rule)
  else
    # no conditional hash, proceed adding operations one by one
    operations.each do |op|
      rule = Bali::Rule.new(auth_val, op)
      self.current_rule_group.add_rule(rule)
    end
  end
end