Class: CrateRuby::ResultSet

Inherits:
Object
  • Object
show all
Includes:
Enumerable
Defined in:
lib/crate_ruby/result_set.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(result) ⇒ ResultSet

Returns a new instance of ResultSet.

Parameters:

  • result (String) 


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# File 'lib/crate_ruby/result_set.rb', line 28

def initialize(result)
  result = JSON.parse(result)
  @cols = result['cols']
  @rows = result['rows']
  @rowcount = result['rowcount']
  @duration = result['duration']
end

Instance Attribute Details

#cols ⇒ Object (readonly)

Returns the value of attribute cols.



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# File 'lib/crate_ruby/result_set.rb', line 25

def cols
  @cols
end

#duration ⇒ Object (readonly)

Returns the value of attribute duration.



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# File 'lib/crate_ruby/result_set.rb', line 25

def duration
  @duration
end

#rowcount ⇒ Object (readonly)

Returns the value of attribute rowcount.



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# File 'lib/crate_ruby/result_set.rb', line 25

def rowcount
  @rowcount
end

Instance Method Details

#<<(val) ⇒ Object 



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# File 'lib/crate_ruby/result_set.rb', line 40

def <<(val)
  @rows << val
end

#[](val) ⇒ Object 



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# File 'lib/crate_ruby/result_set.rb', line 48

def [](val)
  @rows[val]
end

#each(&block) ⇒ Object 



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# File 'lib/crate_ruby/result_set.rb', line 44

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

#inspect ⇒ Object 



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# File 'lib/crate_ruby/result_set.rb', line 36

def inspect
  %(#<CrateRuby::ResultSet:#{object_id}>, @rowcount="#{@rowcount}", @duration=#{@duration}>)
end

#select_columns(ary, &block) ⇒ Array

Returns Filtered rows.

Parameters:

  • ary (Array) —

    Column names to filer on

Returns:

  • (Array) —

    Filtered rows



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# File 'lib/crate_ruby/result_set.rb', line 59

def select_columns(ary, &block)
  indexes = ary.map { |col| @cols.index(col) }.compact
  @rows.map { |r| r.values_at(*indexes) }.each(&block)
end

#values ⇒ Array

Returns all rows as Array of arrays

Returns:

  • (Array) —

    Returns all rows as Array of arrays



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# File 'lib/crate_ruby/result_set.rb', line 53

def values
  @rows
end