Module: Condition

Included in:
URI::QueryParams
Defined in:
lib/query_params/condition.rb

Constant Summary collapse

OPERATORS = 
{ "=" => "eq", ">=" => "ge", "<=" => "le", "between" => "bt", "in" => "in" }

Instance Method Summary collapse

Instance Method Details

#set_conditions(conditions) ⇒ Object 



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# File 'lib/query_params/condition.rb', line 7

def set_conditions(conditions)
  
  if conditions.kind_of?(Array)
    conditions.each do |condition|
      set_query(condition)
    end
  else
    set_query(conditions)
  end
end

#set_query(condition) ⇒ Object

Raises:

  • (ArgumentError) 


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# File 'lib/query_params/condition.rb', line 18

def set_query(condition)

  condition = condition.gsub(/ in\(/i, ' in (')

  tokens = condition.split(" ")
  
  raise(ArgumentError, "Invalid condition: #{condition}. Probably, the operator was not separated by space.") if tokens.size < 3

  field = tokens[0].strip
  operator = tokens[1].strip.downcase
  value = tokens[2..tokens.size].join(" ").strip.gsub(/['"]/,"")
  
  raise(ArgumentError, "Invalid operator. Accepted tokens: #{OPERATORS.values}") if OPERATORS[operator].nil?

  if operator == "between"
    bt_values = value.downcase.split(' and ')
    # queryParam.bt('age', 18, 21)
    self.send(OPERATORS[operator], field, bt_values[0], bt_values[1])
  elsif operator == "in"
    # queryParam.in('age', [1,2,3])
    self.send(OPERATORS[operator], field, value.strip[1..-2].split(","))
  else
    # queryParam.eq('age', 18)
    self.send(OPERATORS[operator], field, value)
  end
end