Class: Mode::Connector::TypeMap

Inherits:
Object
  • Object
show all
Includes:
Enumerable
Defined in:
lib/mode/connector/type_map.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ TypeMap

Returns a new instance of TypeMap.



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# File 'lib/mode/connector/type_map.rb', line 8

def initialize
  @types = {}
end

Instance Attribute Details

#types ⇒ Object (readonly)

Returns the value of attribute types.



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# File 'lib/mode/connector/type_map.rb', line 6

def types
  @types
end

Instance Method Details

#each(&block) ⇒ Object 



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# File 'lib/mode/connector/type_map.rb', line 12

def each(&block)
  types.each do |name, value|
    yield name, type?(name)
  end
end

#insert(row) ⇒ Object 



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# File 'lib/mode/connector/type_map.rb', line 18

def insert(row)
  row.each do |name, value|
    types[name] ||= {}
    types[name][type(value)] ||= 1
  end
end

#type(value) ⇒ Object 



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# File 'lib/mode/connector/type_map.rb', line 25

def type(value)
  if value.kind_of?(Integer)
    :integer
  elsif value.kind_of?(Float)
    :number
  elsif value.kind_of?(Date) || value.kind_of?(Time)
    :datetime
  elsif value.kind_of?(TrueClass) || value.kind_of?(FalseClass)
    :boolean
  else
    :string
  end
end

#type?(name) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/mode/connector/type_map.rb', line 39

def type?(name)
  keys = types[name].keys
  keys.compact.length == 1 ? keys.first : :string
end