class JqueryQueryBuilder::Rule

Attributes

field[RW]
id[RW]
input[RW]
operator[RW]
type[RW]
value[RW]

Public Class Methods

new(rule_hash) click to toggle source
# File lib/jquery_query_builder/rule.rb, line 4
def initialize(rule_hash)
  self.id = rule_hash['id']
  self.field = rule_hash['field']
  self.type = rule_hash['type']
  self.input = rule_hash['input']
  self.operator = rule_hash['operator']
  self.value = rule_hash['value']
end

Public Instance Methods

evaluate(object) click to toggle source
# File lib/jquery_query_builder/rule.rb, line 13
def evaluate(object)
  get_operator.evaluate(get_input(object), get_value)
end
get_input(object) click to toggle source
# File lib/jquery_query_builder/rule.rb, line 21
def get_input(object)
  fields = field.split('.')
  result = object
  steps = fields.length
  fields.each_with_index do |field, i|
    last_step = i == steps - 1
    result = result[field]
    result = result.first if(result.is_a?(Array) && !last_step)
    break if result.nil?
  end
  if result.is_a? Array
    result.map{|v| typecast_value(v)}
  else
    typecast_value(result)
  end
end
get_operator() click to toggle source
# File lib/jquery_query_builder/rule.rb, line 17
def get_operator
  JqueryQueryBuilder::Operator.get_operator_class(operator).new
end
get_value() click to toggle source
# File lib/jquery_query_builder/rule.rb, line 38
def get_value
  if value.is_a? Array
    value.map{|v| typecast_value(v)}
  else
    typecast_value(value)
  end
end
typecast_value(value_to_cast) click to toggle source
# File lib/jquery_query_builder/rule.rb, line 46
def typecast_value(value_to_cast)
  return nil if value_to_cast.nil?

  case type
    when 'string'
      value_to_cast.to_s
    when 'integer'
      value_to_cast.to_i
    when 'double'
      value_to_cast.to_f
    when 'date'
      value_to_cast.is_a?(String) ? Date.parse(value_to_cast) : value_to_cast
    when 'time'
      value_to_cast.is_a?(String) ? Time.parse(value_to_cast) : value_to_cast
    when 'datetime'
      value_to_cast.is_a?(String) ? DateTime.parse(value_to_cast) : value_to_cast
    when 'boolean'
      value_to_cast == 'Yes' || value_to_cast == 'yes' || value_to_cast == 'True' || value_to_cast == 'true' || value_to_cast == true
    else
      value_to_cast
  end
end