Module: DocumentMapper::Document::ClassMethods

Defined in:
lib/document_mapper/document.rb

Instance Method Summary collapse

Instance Method Details

#all ⇒ Object 



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# File 'lib/document_mapper/document.rb', line 97

def all
  @documents
end

#attributes ⇒ Object 



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# File 'lib/document_mapper/document.rb', line 109

def attributes
  @documents.map(&:attributes).map(&:keys).flatten.uniq.sort
end

#directory=(new_directory) ⇒ Object

Raises:



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# File 'lib/document_mapper/document.rb', line 45

def directory=(new_directory)
  raise FileNotFoundError unless File.directory?(new_directory)
  self.reset
  @directory = Dir.new File.expand_path(new_directory)
  @directory.each do |file|
    next if file[0,1] == '.'
    self.from_file [@directory.path, file].join('/')
  end
end

#first ⇒ Object 



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# File 'lib/document_mapper/document.rb', line 101

def first
  @documents.first
end

#from_file(file_path) ⇒ Object 



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# File 'lib/document_mapper/document.rb', line 32

def from_file(file_path)
  if !File.exist? file_path
    raise FileNotFoundError
  end
  self.new.tap do |document|
    document.attributes = {
      :file_path => File.expand_path(file_path)
    }
    document.read_yaml
    @documents << document
  end
end

#last ⇒ Object 



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# File 'lib/document_mapper/document.rb', line 105

def last
  @documents.last
end

#limit(number) ⇒ Object 



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# File 'lib/document_mapper/document.rb', line 93

def limit(number)
  Query.new(self).limit(number)
end

#offset(number) ⇒ Object 



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# File 'lib/document_mapper/document.rb', line 89

def offset(number)
  Query.new(self).offset(number)
end

#order_by(field) ⇒ Object 



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# File 'lib/document_mapper/document.rb', line 85

def order_by(field)
  Query.new(self).order_by(field)
end

#reload ⇒ Object 



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# File 'lib/document_mapper/document.rb', line 27

def reload
  self.reset
  self.directory = @directory.path
end

#reset ⇒ Object 



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# File 'lib/document_mapper/document.rb', line 23

def reset
  @documents = []
end

#select(options = {}) ⇒ Object 



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# File 'lib/document_mapper/document.rb', line 55

def select(options = {})
  documents = @documents.dup
  options[:where].each do |selector, selector_value|
    documents = documents.select do |document|
      next unless document.attributes.has_key? selector.attribute
      document_value = document.send(selector.attribute)
      operator = OPERATOR_MAPPING[selector.operator]
      document_value.send operator, selector_value
    end
  end

  if options[:order_by].present?
    order_attribute = options[:order_by].keys.first
    asc_or_desc = options[:order_by].values.first
    documents = documents.select do |document|
      document.attributes.include? order_attribute
    end
    documents = documents.sort_by do |document|
      document.send order_attribute
    end
    documents.reverse! if asc_or_desc == :desc
  end

  documents
end

#where(hash) ⇒ Object 



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# File 'lib/document_mapper/document.rb', line 81

def where(hash)
  Query.new(self).where(hash)
end