Class: Tina4::GraphResult

Inherits:
Object
  • Object
show all
Includes:
Enumerable
Defined in:
lib/tina4/graph.rb

Overview

A raw-query result — records + columns, same shape as DatabaseResult.

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(records: nil, columns: nil) ⇒ GraphResult

Returns a new instance of GraphResult.



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# File 'lib/tina4/graph.rb', line 170

def initialize(records: nil, columns: nil)
  @records = records || []
  @columns = columns || []
end

Instance Attribute Details

#columns ⇒ Object (readonly)

Returns the value of attribute columns.



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# File 'lib/tina4/graph.rb', line 168

def columns
  @columns
end

#records ⇒ Object (readonly)

Returns the value of attribute records.



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# File 'lib/tina4/graph.rb', line 168

def records
  @records
end

Instance Method Details

#each(&block) ⇒ Object 



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# File 'lib/tina4/graph.rb', line 192

def each(&block)
  @records.each(&block)
end

#length ⇒ Object Also known as: size 



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# File 'lib/tina4/graph.rb', line 196

def length
  @records.length
end

#scalar ⇒ Object 



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# File 'lib/tina4/graph.rb', line 179

def scalar
  return nil if @records.empty?

  first = @records[0]
  if first.is_a?(Hash)
    first.values.first
  elsif first.is_a?(Array)
    first.empty? ? nil : first[0]
  else
    first
  end
end

#to_a ⇒ Object 



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# File 'lib/tina4/graph.rb', line 175

def to_a
  @records
end