Class: Philiprehberger::DataMapper::Mapping

Inherits:
Object
  • Object
show all
Includes:
Parsable, Reversible
Defined in:
lib/philiprehberger/data_mapper/mapping.rb

Instance Method Summary collapse

Methods included from Reversible

#reverse

Methods included from Parsable

#from_csv, #from_json

Constructor Details

#initialize(&block) ⇒ Mapping

Returns a new instance of Mapping.



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# File 'lib/philiprehberger/data_mapper/mapping.rb', line 12

def initialize(&block)
  @fields = []
  @computed_fields = []
  instance_eval(&block) if block
end

Instance Method Details

#array_field(target, split: ',', **opts, &transform) ⇒ Object 



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# File 'lib/philiprehberger/data_mapper/mapping.rb', line 26

def array_field(target, split: ',', **opts, &transform)
  field(target, split: split, **opts, &transform)
end

#computed(target) ⇒ Object 



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# File 'lib/philiprehberger/data_mapper/mapping.rb', line 22

def computed(target, &)
  @computed_fields << ComputedDefinition.new(target, &)
end

#field(target) ⇒ Object 



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# File 'lib/philiprehberger/data_mapper/mapping.rb', line 18

def field(target, ...)
  @fields << FieldDefinition.new(target, ...)
end

#field_names ⇒ Array<Symbol>

Names (targets) of every declared field, including computed fields.

Returns:

  • (Array<Symbol>) 


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# File 'lib/philiprehberger/data_mapper/mapping.rb', line 50

def field_names
  @fields.map(&:target) + @computed_fields.map(&:target)
end

#map(hash) ⇒ Object 



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# File 'lib/philiprehberger/data_mapper/mapping.rb', line 30

def map(hash)
  result = map_fields(hash)
  apply_computed(hash, result)
  result
end

#map_all(array) ⇒ Object 



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# File 'lib/philiprehberger/data_mapper/mapping.rb', line 43

def map_all(array)
  array.map { |hash| map(hash) }
end

#map_with_validation(hash) ⇒ Object 



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# File 'lib/philiprehberger/data_mapper/mapping.rb', line 36

def map_with_validation(hash)
  result = {}
  errors = collect_errors(hash, result)
  apply_computed(hash, result)
  MappingResult.new(result, errors)
end