Class: Cloudsheet::Mapping

Inherits:
Object
  • Object
show all
Defined in:
lib/cloudsheet/mapping.rb

Constant Summary collapse

TO_S = 
->(d) {d.to_s}
NOOP = 
->(d) {d}

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(name) ⇒ Mapping

Returns a new instance of Mapping.



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# File 'lib/cloudsheet/mapping.rb', line 6

def initialize(name)
  @name = name
  @read = NOOP
  @write = NOOP
end

Instance Attribute Details

#name ⇒ Object (readonly)

Returns the value of attribute name.



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# File 'lib/cloudsheet/mapping.rb', line 3

def name
  @name
end

#read ⇒ Object (readonly)

Returns the value of attribute read.



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# File 'lib/cloudsheet/mapping.rb', line 3

def read
  @read
end

Instance Method Details

#map(read, write = nil) ⇒ Object 



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# File 'lib/cloudsheet/mapping.rb', line 12

def map(read, write = nil)
  @read = read
  @write = write if write
  self
end

#type(klass) ⇒ Object 



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# File 'lib/cloudsheet/mapping.rb', line 18

def type(klass)
  klass = klass.to_s
  klass.downcase!
  case klass #Because case uses ===
  when ""
  when "noop"
  when "string"
    @read = ->(d) {String.new(d) if d}
    @write = TO_S
  when "date"
    @read = ->(d) {Date.parse(d) if not d.empty?}
    @write = TO_S
  when "float"
    @read = ->(d) {d.to_f if not d.empty?}
    @write = TO_S
  when "integer"
    @read = ->(d) {d.to_i if not d.empty?}
    @write = TO_S
  when "datetime"
    @read = ->(d) {DateTime.parse(d) if not d.empty?}
    @write = TO_S
  when "money"
    @read = ->(d) {d.gsub(',','').gsub('$','').to_f}
    @write = ->(d) {"$"+d.to_s}
  when "month"
    @read = ->(d) {Date.strptime(d, '%m/%Y') if not d.empty?}
    @write = ->(d) {d.strftime("%m/%Y")}
  else
    raise "No mapping for that type is built in"
  end
  self
end