Class: Ronin::Code::SQL::Select

Inherits:
Statement show all
Defined in:
lib/ronin/code/sql/select.rb

Instance Attribute Summary

Attributes inherited from Statement

#clauses

Instance Method Summary collapse

Methods inherited from Statement

clause_order, clauses, #get_clause, #has_clause?, has_clause?

Methods inherited from Expr

#===, #in?, #not_in?

Constructor Details

#initialize(dialect, options = {}, &block) ⇒ Select

Returns a new instance of Select.



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# File 'lib/ronin/code/sql/select.rb', line 52

def initialize(dialect,options={},&block)
  super(dialect,options)

  if options[:distinct_rows]
    self.distinct_rows!
  end

  if options[:all_rows]
    self.all_rows!
  end

  unless options[:fields]
    fields(all)
  end

  instance_eval(&block) if block
end

Dynamic Method Handling

This class handles dynamic methods through the method_missing method in the class Ronin::Code::SQL::Statement

Instance Method Details

#all_rows! ⇒ Object 



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# File 'lib/ronin/code/sql/select.rb', line 70

def all_rows!
  @all_rows = true
  return self
end

#all_rows? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/ronin/code/sql/select.rb', line 75

def all_rows?
  @all_rows == true
end

#distinct_rows! ⇒ Object 



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# File 'lib/ronin/code/sql/select.rb', line 79

def distinct_rows!
  @distinct_rows = true
  return self
end

#distinct_rows? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/ronin/code/sql/select.rb', line 84

def distinct_rows?
  @distinct_rows == true
end

#emit ⇒ Object 



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# File 'lib/ronin/code/sql/select.rb', line 88

def emit
  tokens = emit_token('SELECT')

  if @distinct_rows
    tokens += emit_token('DISTINCT')
  elsif @all_rows
    tokens += emit_token('ALL')
  end
  
  return tokens + super
end