Class: Sakuramochi::Configuration

Inherits:
Object
  • Object
show all
Defined in:
lib/sakuramochi/configuration.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ Configuration

Returns a new instance of Configuration.



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# File 'lib/sakuramochi/configuration.rb', line 7

def initialize
  @predicates = {}
  restore
end

Instance Attribute Details

#predicates ⇒ Object

Returns the value of attribute predicates.



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# File 'lib/sakuramochi/configuration.rb', line 5

def predicates
  @predicates
end

Instance Method Details

#add(*args) ⇒ Object 



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# File 'lib/sakuramochi/configuration.rb', line 12

def add(*args)
  options = args.extract_options!
  options.reverse_merge!(:grouping => true)

  suffixes = [nil]
  suffixes += ['any', 'all'] if options[:grouping]

  args.flatten.each do |name|
    name = name.to_s
    suffixes.each do |suffix|
      predicate_name = [name, suffix].compact.join('_')
      @predicates[predicate_name] = Predicate.new(options.merge({
        :name => predicate_name,
        :arel_predicate => [options[:arel_predicate], suffix].compact.join('_')
      }))
    end
  end 
end

#clear ⇒ Object 



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# File 'lib/sakuramochi/configuration.rb', line 31

def clear
  @predicates.clear
end

#restore ⇒ Object 



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# File 'lib/sakuramochi/configuration.rb', line 35

def restore
  clear

  names = {
    :contains =>    [:contains],
    :starts_with => [:starts_with, :start_with],
    :ends_with =>   [:ends_with, :end_with],
    :in =>          [:in],
    :eq =>          [:eq, :equal, :equals],
    :gt =>          [:gt],
    :gte =>         [:gte, :gteq],
    :lt =>          [:lt],
    :lte =>         [:lte, :lteq],
  }
  negative = proc { |p| "not_#{p}" }

  add names[:contains],                   :arel_predicate => :matches,        :converter => proc { |v| "%#{v}%" }
  add names[:contains].map(&negative),    :arel_predicate => :does_not_match, :converter => proc { |v| "%#{v}%" }
  add names[:starts_with],                :arel_predicate => :matches,        :converter => proc { |v| "#{v}%" }
  add names[:starts_with].map(&negative), :arel_predicate => :does_not_match, :converter => proc { |v| "#{v}%" }
  add names[:ends_with],                  :arel_predicate => :matches,        :converter => proc { |v| "%#{v}" }
  add names[:ends_with].map(&negative),   :arel_predicate => :does_not_match, :converter => proc { |v| "%#{v}" }
  add names[:in],                         :arel_predicate => :in
  add names[:in].map(&negative),          :arel_predicate => :not_in
  add names[:eq],                         :arel_predicate => :eq
  add names[:eq].map(&negative), :ne,     :arel_predicate => :not_eq
  add names[:gt],                         :arel_predicate => :gt
  add names[:gte],                        :arel_predicate => :gteq
  add names[:lt],                         :arel_predicate => :lt
  add names[:lte],                        :arel_predicate => :lteq
end