Class: Protopack::Exporter

Inherits:
Object
  • Object
show all
Defined in:
lib/protopack/exporter.rb

Instance Method Summary collapse

Instance Method Details

#array_assoc(list) ⇒ Object 



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# File 'lib/protopack/exporter.rb', line 5

def array_assoc list      ; list.map { |item| to_attributes item }                                     ; end

#build_association(obj, table, getter, setter) ⇒ Object 



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# File 'lib/protopack/exporter.rb', line 27

def build_association obj, table, getter, setter
  assoc = obj.send getter
  return if assoc.blank? || assoc.empty?
  attrs = (assoc.respond_to?(:each)) ? array_assoc(assoc) : to_attributes(assoc)
  table[setter] = attrs
end

#build_association_table(obj) ⇒ Object 



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# File 'lib/protopack/exporter.rb', line 16

def build_association_table obj
  export_config(obj)[:associations].inject({ }) { |table, name|
    if name.is_a? Hash
      build_association obj, table, name[:get], name[:set]
    else
      build_association obj, table, name, "#{name}_attributes"
    end
    table
  }
end

#clean_attrs(attrs) ⇒ Object 



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# File 'lib/protopack/exporter.rb', line 14

def clean_attrs     attrs ; remove_blanks(attrs).recursively_replace_values { |k,v| styled_literal v } ; end

#clean_yaml(hsh) ⇒ Object 



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# File 'lib/protopack/exporter.rb', line 6

def clean_yaml hsh        ; StyledYAML.dump(clean_attrs hsh)                                           ; end

#default_export_config ⇒ Object 



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# File 'lib/protopack/exporter.rb', line 8

def default_export_config ; { fields: [], associations: [] }                                           ; end

#export_config(obj) ⇒ Object 



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# File 'lib/protopack/exporter.rb', line 9

def export_config     obj ; default_export_config.merge obj.protopack_export_config                    ; end

#maybe_name_methods ⇒ Object 



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# File 'lib/protopack/exporter.rb', line 3

def maybe_name_methods    ; i{ export_name full_name presentation_name name }                         ; end

#name_method(obj) ⇒ Object 



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# File 'lib/protopack/exporter.rb', line 4

def name_method obj       ; maybe_name_methods.detect { |m| obj.respond_to?(m) && obj.send(m) }        ; end

#no_name?(obj_id) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/protopack/exporter.rb', line 7

def no_name? obj_id       ; raise "no name for object: #{obj_id.inspect}" if obj_id.blank?             ; end

#remove_blanks(attrs) ⇒ Object 



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# File 'lib/protopack/exporter.rb', line 12

def remove_blanks   attrs ; attrs.recursively_remove_by_value! { |v| (v != false) && v.blank? }        ; end

#styled_literal(str) ⇒ Object 



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# File 'lib/protopack/exporter.rb', line 13

def styled_literal    str ; str.is_a?(String) ? StyledYAML.literal(str) : str                          ; end

#to_attributes(obj) ⇒ Object 



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# File 'lib/protopack/exporter.rb', line 10

def to_attributes     obj ; obj.slice(*export_config(obj)[:fields]).merge build_association_table obj  ; end

#to_package(obj, meta = { }) ⇒ Object 



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# File 'lib/protopack/exporter.rb', line 34

def to_package obj, meta={ }
  obj_name        = obj.send(name_method obj)
  obj_id          = obj_name.to_s.gsub(/_/, '-')

  no_name? obj_id

  hsh = {
    id:          obj_id,
    description: obj_name,
    type:        obj.class.name,
    attributes:  to_attributes(obj),
  }.deep_merge(meta).recursively_stringify_keys!
end

#to_yaml(obj, meta = {}) ⇒ Object 



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# File 'lib/protopack/exporter.rb', line 11

def to_yaml  obj, meta={} ; clean_yaml to_package obj, meta                                            ; end