Module: JunglePath::DBModel::Params

Defined in:
lib/jungle_path/db_model/params.rb

Class Method Summary collapse

Class Method Details

.convert_to_type(params, columns) ⇒ Object 



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# File 'lib/jungle_path/db_model/params.rb', line 19

def self.convert_to_type(params, columns)
  #params must be hash of symbols (as keys) and values
  p = {}
  params = params.to_hash
  params.each do |k, v|
    column = columns[k]
    if column and v
      #puts "column, type: #{k} #{column.type}."
      if column.type == :integer or column.base_type == :integer
        p[k] = v.to_i
      elsif column.type == :timestamp and v.class == String
        p[k] = Time.parse(v).utc
      elsif column.type == :timestamp_local and v.class == String # experimental, probably won't use...
        p[k] = Time.parse(v)
      elsif column.type == :date and v.class == String
        p[k] = Date.parse(v).to_time
      elsif column.type == :date and v.class == Date
        p[k] = v.to_time
      elsif column.type == :boolean
        p[k] = to_bool(v)
      elsif (column.type == :string or column.base_type == :string) and v.class == String and v.strip.empty?
        # treat empty/whitespace only strings as nil.
        p[k] = nil
      else
        p[k] = v
      end
    else
      p[k] = v
    end
  end
  p
end

.symbolize(params) ⇒ Object 



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# File 'lib/jungle_path/db_model/params.rb', line 14

def self.symbolize(params)
  p = params.to_hash
  Hash[p.map {|k, v| [k.to_sym, v] }]
end

.to_bool(value) ⇒ Object

Raises:

  • (ArgumentError) 


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# File 'lib/jungle_path/db_model/params.rb', line 52

def self.to_bool(value)
  return false if value == nil
  return true  if value == true   || value =~ (/(true|t|yes|y|on|1)$/i)
  return false if value == false  || value.empty? || value =~ (/(false|f|no|n|off|0)$/i)
  raise ArgumentError.new("invalid value for Boolean: \"#{value}\"")
end

.transform(params, columns) ⇒ Object 



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# File 'lib/jungle_path/db_model/params.rb', line 4

def self.transform(params, columns)
  # sinatra params come as string keys with string values.
  # Convert values to various types based on Schema column definitions.
  # Convert keys to symbols.
  p = params.to_hash
  p = symbolize(p)
  p = convert_to_type(p, columns)
  p
end