Class: Arel::Visitors::ToSql

Inherits:
Object
  • Object
show all
Defined in:
lib/arel_extensions/visitors/to_sql.rb

Instance Method Summary collapse

Instance Method Details

#old_visit_Arel_Nodes_And ⇒ Object

Boolean logic.



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# File 'lib/arel_extensions/visitors/to_sql.rb', line 548

alias_method :old_visit_Arel_Nodes_And, :visit_Arel_Nodes_And

#old_visit_Arel_Nodes_Or ⇒ Object 



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# File 'lib/arel_extensions/visitors/to_sql.rb', line 568

alias_method :old_visit_Arel_Nodes_Or, :visit_Arel_Nodes_Or

#visit_Arel_Nodes_And(o, collector) ⇒ Object 



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# File 'lib/arel_extensions/visitors/to_sql.rb', line 549

def visit_Arel_Nodes_And o, collector
  case o.children.length
  when 0
    collector << '1 = 1' # but this should not happen
  when 1
    collector = visit o.children[0], collector
  else
    collector << '('
    o.children.each_with_index { |arg, i|
      if i != 0
        collector << ') AND ('
      end
      collector = visit arg, collector
    }
    collector << ')'
  end
  collector
end

#visit_Arel_Nodes_As(o, collector) ⇒ Object 



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# File 'lib/arel_extensions/visitors/to_sql.rb', line 340

def visit_Arel_Nodes_As o, collector
  if o.left.is_a?(Arel::Nodes::Binary)
    collector << '('
    collector = visit o.left, collector
    collector << ')'
  else
    collector = visit o.left, collector
  end
  collector << " AS "
  collector = visit o.right, collector
  collector
end

#visit_Arel_Nodes_LessThan(o, collector) ⇒ Object 



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# File 'lib/arel_extensions/visitors/to_sql.rb', line 517

def visit_Arel_Nodes_LessThan o, collector
  collector = visit o.left, collector
  collector << " < "
  visit o.right, collector
end

#visit_Arel_Nodes_NotRegexp(o, collector) ⇒ Object 



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# File 'lib/arel_extensions/visitors/to_sql.rb', line 362

def visit_Arel_Nodes_NotRegexp o, collector
  collector = visit o.left, collector
  collector << " NOT REGEXP "
  collector = visit o.right, collector
  collector
end

#visit_Arel_Nodes_Or(o, collector) ⇒ Object 



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# File 'lib/arel_extensions/visitors/to_sql.rb', line 569

def visit_Arel_Nodes_Or o, collector
  case o.children.length
  when 0
    collector << '1 = 0' # but this should not happen
  when 1
    collector = visit o.children[0], collector
  else
      collector << '('
      o.children.each_with_index { |arg, i|
        if i != 0
          collector << ') OR ('
        end
        collector = visit arg, collector
      }
      collector << ')'
  end
  collector
end

#visit_Arel_Nodes_Regexp(o, collector) ⇒ Object 



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# File 'lib/arel_extensions/visitors/to_sql.rb', line 354

def visit_Arel_Nodes_Regexp o, collector
  collector = visit o.left, collector
  collector << " REGEXP "
  collector = visit o.right, collector
  collector
end

#visit_ArelExtensions_InsertManager_BulkValues(o, collector) ⇒ Object 



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# File 'lib/arel_extensions/visitors/to_sql.rb', line 426

def visit_ArelExtensions_InsertManager_BulkValues o, collector
  collector << 'VALUES '
  row_nb = o.left.length
  o.left.each_with_index do |row, idx|
    collector << '('
    len = row.length - 1
    row.zip(o.cols).each_with_index { |(value, attr), i|
      case value
      when Arel::Nodes::SqlLiteral, Arel::Nodes::BindParam
        collector = visit value, collector
      else
        collector << quote(value, attr && column_for(attr)).to_s
      end
      collector << Arel::Visitors::ToSql::COMMA unless i == len
    }
    collector << (idx == row_nb-1 ? ')' : '), ')
  end
  collector
end

#visit_ArelExtensions_Nodes_Abs(o, collector) ⇒ Object

Math Functions



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# File 'lib/arel_extensions/visitors/to_sql.rb', line 7

def visit_ArelExtensions_Nodes_Abs o, collector
  collector << "ABS("
  o.expressions.each_with_index { |arg, i|
    collector << Arel::Visitors::ToSql::COMMA unless i == 0
    collector = visit arg, collector
  }
  collector << ")"
  collector
end

#visit_ArelExtensions_Nodes_Blank(o, collector) ⇒ Object 



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# File 'lib/arel_extensions/visitors/to_sql.rb', line 238

def visit_ArelExtensions_Nodes_Blank o, collector
    #visit o.left.coalesce('').trim.length.eq(0), collector
  collector << 'LENGTH(TRIM(COALESCE('
  collector = visit o.expr, collector
  collector << Arel::Visitors::ToSql::COMMA
  collector = visit Arel::Nodes.build_quoted(''), collector
  collector << "))) = 0"
  collector
end

#visit_ArelExtensions_Nodes_Case(o, collector) ⇒ Object 



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# File 'lib/arel_extensions/visitors/to_sql.rb', line 483

def visit_ArelExtensions_Nodes_Case o, collector
  collector << "CASE "
  if o.case
    visit o.case, collector
    collector << " "
  end
  o.conditions.each do |condition|
    visit condition, collector
    collector << " "
  end
  if o.default
    visit o.default, collector
    collector << " "
  end
  collector << "END"
end

#visit_ArelExtensions_Nodes_Case_Else(o, collector) ⇒ Object 



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# File 'lib/arel_extensions/visitors/to_sql.rb', line 507

def visit_ArelExtensions_Nodes_Case_Else o, collector
  collector << "ELSE "
  visit Arel::Nodes.build_quoted(o.expr), collector
end

#visit_ArelExtensions_Nodes_Case_When(o, collector) ⇒ Object 



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# File 'lib/arel_extensions/visitors/to_sql.rb', line 500

def visit_ArelExtensions_Nodes_Case_When o, collector
  collector << "WHEN "
  visit Arel::Nodes.build_quoted(o.left), collector
  collector << " THEN "
  visit Arel::Nodes.build_quoted(o.right), collector
end

#visit_ArelExtensions_Nodes_Cast(o, collector) ⇒ Object

comparators



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# File 'lib/arel_extensions/visitors/to_sql.rb', line 281

def visit_ArelExtensions_Nodes_Cast o, collector
  collector << "CAST("
  collector = visit o.left, collector
  collector << " AS "
  case o.as_attr
  when :string
    as_attr = Arel::Nodes::SqlLiteral.new('char')
  when :int
    as_attr = Arel::Nodes::SqlLiteral.new('int')
  when :decimal, :float, :number
    as_attr = Arel::Nodes::SqlLiteral.new('float')
  when :datetime
    as_attr = Arel::Nodes::SqlLiteral.new('datetime')
  when :time
    as_attr = Arel::Nodes::SqlLiteral.new('time')
  when :binary
    as_attr = Arel::Nodes::SqlLiteral.new('binary')
  else
    as_attr = Arel::Nodes::SqlLiteral.new(o.as_attr.to_s)
  end
  collector = visit as_attr, collector
  collector << ")"
  collector
end

#visit_ArelExtensions_Nodes_Ceil(o, collector) ⇒ Object 



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# File 'lib/arel_extensions/visitors/to_sql.rb', line 17

def visit_ArelExtensions_Nodes_Ceil o, collector
  collector << "CEIL("
  o.expressions.each_with_index { |arg, i|
    collector << Arel::Visitors::ToSql::COMMA unless i == 0
    collector = visit arg, collector
  }
  collector << ")"
  collector
end

#visit_ArelExtensions_Nodes_Coalesce(o, collector) ⇒ Object 



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# File 'lib/arel_extensions/visitors/to_sql.rb', line 306

def visit_ArelExtensions_Nodes_Coalesce o, collector
  collector << "COALESCE("
  o.expressions.each_with_index { |arg, i|
    collector << Arel::Visitors::ToSql::COMMA unless i == 0
    collector = visit arg, collector
  }
  collector << ")"
  collector
end

#visit_ArelExtensions_Nodes_Concat(o, collector) ⇒ Object

String functions



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# File 'lib/arel_extensions/visitors/to_sql.rb', line 82

def visit_ArelExtensions_Nodes_Concat o, collector
  collector << "CONCAT("
o.expressions.each_with_index { |arg, i|
    collector << Arel::Visitors::ToSql::COMMA unless i == 0
    collector = visit arg, collector
  }
  collector << ")"
  collector
end

#visit_ArelExtensions_Nodes_DateAdd(o, collector) ⇒ Object

Date operations



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# File 'lib/arel_extensions/visitors/to_sql.rb', line 416

def visit_ArelExtensions_Nodes_DateAdd o, collector
  collector << "DATE_ADD("
  collector = visit o.left, collector
  collector << Arel::Visitors::ToSql::COMMA
  collector = visit o.sqlite_value(o.right), collector
  collector << ')'
  collector
end

#visit_ArelExtensions_Nodes_DateDiff(o, collector) ⇒ Object 



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# File 'lib/arel_extensions/visitors/to_sql.rb', line 316

def visit_ArelExtensions_Nodes_DateDiff o, collector
  collector << if o.left_node_type == :ruby_time || o.left_node_type == :datetime || o.left_node_type == :time
                'TIMEDIFF('
              else
                'DATEDIFF('
              end
  collector = visit o.left, collector
  collector << Arel::Visitors::ToSql::COMMA
  collector = visit o.right, collector
  collector << ")"
  collector
end

#visit_ArelExtensions_Nodes_DateSub(o, collector) ⇒ Object 



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# File 'lib/arel_extensions/visitors/to_sql.rb', line 329

def visit_ArelExtensions_Nodes_DateSub o, collector
  collector << "DATE_SUB("
  collector = visit o.left, collector
  collector << Arel::Visitors::ToSql::COMMA
  collector = visit o.right, collector
  collector << ")"
  collector
end

#visit_ArelExtensions_Nodes_Downcase(o, collector) ⇒ Object 



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# File 'lib/arel_extensions/visitors/to_sql.rb', line 188

def visit_ArelExtensions_Nodes_Downcase o, collector
  collector << "LOWER("
  o.expressions.each_with_index { |arg, i|
    collector << Arel::Visitors::ToSql::COMMA unless i == 0
    collector = visit arg, collector
  }
  collector << ")"
  collector
end

#visit_ArelExtensions_Nodes_FindInSet(o, collector) ⇒ Object 



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# File 'lib/arel_extensions/visitors/to_sql.rb', line 168

def visit_ArelExtensions_Nodes_FindInSet o, collector
  collector << "FIND_IN_SET("
  o.expressions.each_with_index { |arg, i|
    collector << Arel::Visitors::ToSql::COMMA unless i == 0
    collector = visit arg, collector
  }
  collector << ")"
  collector
end

#visit_ArelExtensions_Nodes_Floor(o, collector) ⇒ Object 



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# File 'lib/arel_extensions/visitors/to_sql.rb', line 27

def visit_ArelExtensions_Nodes_Floor o, collector
  collector << "FLOOR("
  o.expressions.each_with_index { |arg, i|
    collector << Arel::Visitors::ToSql::COMMA unless i == 0
    collector = visit arg, collector
  }
  collector << ")"
  collector
end

#visit_ArelExtensions_Nodes_Format(o, collector) ⇒ Object 



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# File 'lib/arel_extensions/visitors/to_sql.rb', line 259

def visit_ArelExtensions_Nodes_Format o, collector
  case o.col_type
  when :date, :datetime, :time
    collector << "STRFTIME("
    collector = visit o.right, collector
    collector << Arel::Visitors::ToSql::COMMA
    collector = visit o.left, collector
    collector << ")"
  when :integer, :float, :decimal
    collector << "FORMAT("
    collector = visit o.left, collector
    collector << Arel::Visitors::ToSql::COMMA
    collector = visit o.right, collector
    collector << ")"
  else
    collector = visit o.left, collector
  end
  collector
end

#visit_ArelExtensions_Nodes_FormattedNumber(o, collector) ⇒ Object 



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# File 'lib/arel_extensions/visitors/to_sql.rb', line 512

def visit_ArelExtensions_Nodes_FormattedNumber o, collector
  visit o.left, collector
end

#visit_ArelExtensions_Nodes_GroupConcat(o, collector) ⇒ Object 



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# File 'lib/arel_extensions/visitors/to_sql.rb', line 92

def visit_ArelExtensions_Nodes_GroupConcat o, collector
  collector << "GROUP_CONCAT("
  collector = visit o.left, collector
  if o.separator && o.separator != 'NULL'
    collector << Arel::Visitors::ToSql::COMMA
    collector = visit o.separator, collector
  end
  collector << ")"
  collector
end

#visit_ArelExtensions_Nodes_IDoesNotMatch(o, collector) ⇒ Object 



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# File 'lib/arel_extensions/visitors/to_sql.rb', line 379

def visit_ArelExtensions_Nodes_IDoesNotMatch o, collector
  collector = infix_value o, collector, ' NOT ILIKE '
  if o.escape
    collector << ' ESCAPE '
    collector = visit o.escape, collector
  end
  collector
end

#visit_ArelExtensions_Nodes_IMatches(o, collector) ⇒ Object 



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# File 'lib/arel_extensions/visitors/to_sql.rb', line 369

def visit_ArelExtensions_Nodes_IMatches o, collector
  collector = infix_value o, collector, ' ILIKE '
  if o.escape
    collector << ' ESCAPE '
    visit o.escape, collector
  else
    collector
  end
end

#visit_ArelExtensions_Nodes_IsNotNull(o, collector) ⇒ Object 



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# File 'lib/arel_extensions/visitors/to_sql.rb', line 395

def visit_ArelExtensions_Nodes_IsNotNull o, collector
    collector << "NOT ISNULL("
    collector = visit o.expr, collector
    collector << ")"
    collector
end

#visit_ArelExtensions_Nodes_IsNull(o, collector) ⇒ Object 



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# File 'lib/arel_extensions/visitors/to_sql.rb', line 388

def visit_ArelExtensions_Nodes_IsNull o, collector
  collector << "ISNULL("
  collector = visit o.expr, collector
  collector << ")"
  collector
end

#visit_ArelExtensions_Nodes_Json(o, collector) ⇒ Object 



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# File 'lib/arel_extensions/visitors/to_sql.rb', line 588

def visit_ArelExtensions_Nodes_Json o,collector
  case o.dict
  when Array
    res = Arel::Nodes.build_quoted('[')
    o.dict.each.with_index do |v,i|
      if i != 0
        res += ', '
      end
      if (v.is_a?(Arel::Attributes::Attribute) && o.type_of_attribute(v) == :string) || (v.return_type == :string)
        res = res + '"' + v + '"'
      else
        res += v
      end
    end
    res += ']'
    collector = visit res, collector
  when Hash
    res = Arel::Nodes.build_quoted('{')
    o.dict.each.with_index do |(k,v),i|
      if i != 0
        res += ', '
      end
      res += Arel::Nodes.build_quoted('"')+k + '": '
      if (v.is_a?(Arel::Attributes::Attribute) && o.type_of_attribute(v) == :string) || (v.respond_to?(:return_type) && v.return_type == :string)
        res = res + '"' + v + '"'
      else
        res += v
      end
    end
    res += '}'
    collector = visit res, collector
  else
    collector = visit o.dict, collector
  end
  collector
end

#visit_ArelExtensions_Nodes_JsonGroup(o, collector) ⇒ Object 



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# File 'lib/arel_extensions/visitors/to_sql.rb', line 625

def visit_ArelExtensions_Nodes_JsonGroup o, collector
  if o.as_array
    res = Arel::Nodes.build_quoted('[') + (o.orders ? o.dict.group_concat(', ', order: Array(o.orders)) : o.dict.group_concat(', ')).coalesce('') + ']'
    collector = visit res, collector
  else
    res = Arel::Nodes.build_quoted('{')
    orders = o.orders || o.dict.keys
    o.dict.each.with_index do |(k,v),i|
      if i != 0
        res = res + ', '
      end
      kv = Arel::Nodes.build_quoted('"')+k + '": '
      if (v.is_a?(Arel::Attributes::Attribute) && o.type_of_attribute(v) == :string) || (v.respond_to?(:return_type) && v.return_type == :string)
        kv = kv + '"' + v + '"'
      else
        kv += v
      end
      res = res + kv.group_concat(', ', order: Array(orders)).coalesce('')
    end
    res = res + '}'
    collector = visit res, collector
  end
  collector
end

#visit_ArelExtensions_Nodes_Length(o, collector) ⇒ Object 



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# File 'lib/arel_extensions/visitors/to_sql.rb', line 110

def visit_ArelExtensions_Nodes_Length o, collector
  collector << "LENGTH("
  collector = visit o.left, collector
  collector << ")"
  collector
end

#visit_ArelExtensions_Nodes_LevenshteinDistance(o, collector) ⇒ Object 



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# File 'lib/arel_extensions/visitors/to_sql.rb', line 537

def visit_ArelExtensions_Nodes_LevenshteinDistance o, collector
  collector << "LEVENSHTEIN_DISTANCE("
  collector = visit o.left, collector
  collector << Arel::Visitors::ToSql::COMMA
  collector = visit o.right, collector
  collector << ')'
  collector
end

#visit_ArelExtensions_Nodes_Locate(o, collector) ⇒ Object 



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# File 'lib/arel_extensions/visitors/to_sql.rb', line 117

def visit_ArelExtensions_Nodes_Locate o, collector
  collector << "LOCATE("
  collector = visit o.right, collector
  collector << Arel::Visitors::ToSql::COMMA
  collector = visit o.left, collector
  collector << ")"
  collector
end

#visit_ArelExtensions_Nodes_Log10(o, collector) ⇒ Object 



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# File 'lib/arel_extensions/visitors/to_sql.rb', line 57

def visit_ArelExtensions_Nodes_Log10 o, collector
  collector << "LOG10("
  collector = visit o.left, collector
  collector << ")"
  collector
end

#visit_ArelExtensions_Nodes_Ltrim(o, collector) ⇒ Object 



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# File 'lib/arel_extensions/visitors/to_sql.rb', line 218

def visit_ArelExtensions_Nodes_Ltrim o, collector
  collector << "LTRIM("
  o.expressions.each_with_index { |arg, i|
    collector << Arel::Visitors::ToSql::COMMA unless i == 0
    collector = visit arg, collector
  }
  collector << ")"
  collector
end

#visit_ArelExtensions_Nodes_MD5(o, collector) ⇒ Object 



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# File 'lib/arel_extensions/visitors/to_sql.rb', line 103

def visit_ArelExtensions_Nodes_MD5 o, collector
  collector << "MD5("
  collector = visit o.left, collector
  collector << ")"
  collector
end

#visit_ArelExtensions_Nodes_NotBlank(o, collector) ⇒ Object 



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# File 'lib/arel_extensions/visitors/to_sql.rb', line 249

def visit_ArelExtensions_Nodes_NotBlank o, collector
    #visit o.left.coalesce('').trim.length.gt(0), collector
  collector << 'LENGTH(TRIM(COALESCE('
  collector = visit o.expr, collector
  collector << Arel::Visitors::ToSql::COMMA
  collector = visit Arel::Nodes.build_quoted(''), collector
  collector << "))) > 0"
  collector
end

#visit_ArelExtensions_Nodes_Power(o, collector) ⇒ Object 



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# File 'lib/arel_extensions/visitors/to_sql.rb', line 64

def visit_ArelExtensions_Nodes_Power o, collector
  collector << "POW("
  o.expressions.each_with_index { |arg, i|
    collector << Arel::Visitors::ToSql::COMMA unless i == 0
    collector = visit arg, collector
  }
  collector << ")"
  collector
end

#visit_ArelExtensions_Nodes_Rand(o, collector) ⇒ Object 



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# File 'lib/arel_extensions/visitors/to_sql.rb', line 37

def visit_ArelExtensions_Nodes_Rand o, collector
  collector << "RAND("
  o.expressions.each_with_index { |arg, i|
    collector << Arel::Visitors::ToSql::COMMA unless i == 0
    collector = visit arg, collector
  }
  collector << ")"
  collector
end

#visit_ArelExtensions_Nodes_RegexpReplace(o, collector) ⇒ Object 



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# File 'lib/arel_extensions/visitors/to_sql.rb', line 147

def visit_ArelExtensions_Nodes_RegexpReplace o, collector
  collector << "REGEXP_REPLACE("
  visit o.left, collector
  collector << Arel::Visitors::ToSql::COMMA
  visit Arel::Nodes.build_quoted(o.pattern.to_s), collector
  collector << Arel::Visitors::ToSql::COMMA
  visit o.substitute, collector
  collector << ")"
  collector
end

#visit_ArelExtensions_Nodes_Repeat(o, collector) ⇒ Object 



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# File 'lib/arel_extensions/visitors/to_sql.rb', line 158

def visit_ArelExtensions_Nodes_Repeat o, collector
  collector << "REPEAT("
  o.expressions.each_with_index { |arg, i|
    collector << Arel::Visitors::ToSql::COMMA unless i == 0
    collector = visit arg, collector
  }
  collector << ")"
  collector
end

#visit_ArelExtensions_Nodes_Replace(o, collector) ⇒ Object 



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# File 'lib/arel_extensions/visitors/to_sql.rb', line 136

def visit_ArelExtensions_Nodes_Replace o, collector
  collector << "REPLACE("
  visit o.left, collector
  collector << Arel::Visitors::ToSql::COMMA
  visit o.pattern, collector
  collector << Arel::Visitors::ToSql::COMMA
  visit o.substitute, collector
  collector << ")"
  collector
end

#visit_ArelExtensions_Nodes_Round(o, collector) ⇒ Object 



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# File 'lib/arel_extensions/visitors/to_sql.rb', line 47

def visit_ArelExtensions_Nodes_Round o, collector
  collector << "ROUND("
  o.expressions.each_with_index { |arg, i|
    collector << Arel::Visitors::ToSql::COMMA unless i == 0
    collector = visit arg, collector
  }
  collector << ")"
  collector
end

#visit_ArelExtensions_Nodes_Rtrim(o, collector) ⇒ Object 



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# File 'lib/arel_extensions/visitors/to_sql.rb', line 228

def visit_ArelExtensions_Nodes_Rtrim o, collector
  collector << "RTRIM("
  o.expressions.each_with_index { |arg, i|
    collector << Arel::Visitors::ToSql::COMMA unless i == 0
    collector = visit arg, collector
  }
  collector << ")"
  collector
end

#visit_ArelExtensions_Nodes_Soundex(o, collector) ⇒ Object 



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# File 'lib/arel_extensions/visitors/to_sql.rb', line 178

def visit_ArelExtensions_Nodes_Soundex o, collector
  collector << "SOUNDEX("
  o.expressions.each_with_index { |arg, i|
    collector << Arel::Visitors::ToSql::COMMA unless i == 0
    collector = visit arg, collector
  }
  collector << ")"
  collector
end

#visit_ArelExtensions_Nodes_Std(o, collector) ⇒ Object 



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# File 'lib/arel_extensions/visitors/to_sql.rb', line 523

def visit_ArelExtensions_Nodes_Std o, collector
  collector << "STD("
  visit o.left, collector
  collector << ")"
  collector
end

#visit_ArelExtensions_Nodes_Substring(o, collector) ⇒ Object 



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# File 'lib/arel_extensions/visitors/to_sql.rb', line 126

def visit_ArelExtensions_Nodes_Substring o, collector
  collector << "SUBSTRING("
  o.expressions.each_with_index { |arg, i|
    collector << Arel::Visitors::ToSql::COMMA unless i == 0
    collector = visit arg, collector
  }
  collector << ")"
  collector
end

#visit_ArelExtensions_Nodes_Sum(o, collector) ⇒ Object 



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# File 'lib/arel_extensions/visitors/to_sql.rb', line 74

def visit_ArelExtensions_Nodes_Sum o, collector
  collector << "SUM("
  collector = visit o.expr, collector
  collector << ")"
  collector
end

#visit_ArelExtensions_Nodes_Then(o, collector) ⇒ Object 



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# File 'lib/arel_extensions/visitors/to_sql.rb', line 402

def visit_ArelExtensions_Nodes_Then o, collector
  collector << "CASE WHEN ("
  collector = visit o.left, collector
  collector << ") THEN "
  collector = visit o.right, collector
  if o.expressions[2]
    collector << " ELSE "
    collector = visit o.expressions[2], collector
  end
  collector << " END"
  collector
end

#visit_ArelExtensions_Nodes_Trim(o, collector) ⇒ Object 



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# File 'lib/arel_extensions/visitors/to_sql.rb', line 208

def visit_ArelExtensions_Nodes_Trim o, collector
  collector << "TRIM("
  o.expressions.each_with_index { |arg, i|
    collector << Arel::Visitors::ToSql::COMMA unless i == 0
    collector = visit arg, collector
  }
  collector << ")"
  collector
end

#visit_ArelExtensions_Nodes_Union(o, collector) ⇒ Object 



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# File 'lib/arel_extensions/visitors/to_sql.rb', line 469

def visit_ArelExtensions_Nodes_Union o, collector
  collector = visit o.left, collector
  collector << " UNION "
  collector = visit o.right, collector
  collector
end

#visit_ArelExtensions_Nodes_UnionAll(o, collector) ⇒ Object 



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# File 'lib/arel_extensions/visitors/to_sql.rb', line 476

def visit_ArelExtensions_Nodes_UnionAll o, collector
  collector = visit o.left, collector
  collector << " UNION ALL "
  collector = visit o.right, collector
  collector
end

#visit_ArelExtensions_Nodes_Upcase(o, collector) ⇒ Object 



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# File 'lib/arel_extensions/visitors/to_sql.rb', line 198

def visit_ArelExtensions_Nodes_Upcase o, collector
  collector << "UPPER("
  o.expressions.each_with_index { |arg, i|
    collector << Arel::Visitors::ToSql::COMMA unless i == 0
    collector = visit arg, collector
  }
  collector << ")"
  collector
end

#visit_ArelExtensions_Nodes_Variance(o, collector) ⇒ Object 



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# File 'lib/arel_extensions/visitors/to_sql.rb', line 530

def visit_ArelExtensions_Nodes_Variance o, collector
  collector << "VARIANCE("
  visit o.left, collector
  collector << ")"
  collector
end