Module: SalesforceOrm::SqlToSoql

Included in:
Base
Defined in:
lib/salesforce-orm/sql_to_soql.rb

Instance Method Summary collapse

Instance Method Details

#aggregate_function?(keyword) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/salesforce-orm/sql_to_soql.rb', line 3

def aggregate_function?(keyword)
  keyword =~ /^(AVG|COUNT|COUNT|COUNT_DISTINCT|MIN|MAX|SUM)\(/i
end

#boolean_data_type_conversion(sql) ⇒ Object 



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# File 'lib/salesforce-orm/sql_to_soql.rb', line 22

def boolean_data_type_conversion(sql)
  klass.data_type_map.each do |keyword, data_type|
    if data_type == :boolean
      [0, 1].each do |value|
        regex = Regexp.new("\s+#{keyword}\s*\=\s*#{value}(\s+|$)")
        sql.gsub!(regex, " #{keyword} = #{value == 1}\\1")
      end
      ['t', 'f'].each do |value|
        regex = Regexp.new("\s+#{keyword}\s*\=\s*'#{value}'(\s+|$)")
        sql.gsub!(regex, " #{keyword} = #{value == 't'}\\1")
      end
    end
  end
  sql
end

#convert_aliased_fields(sql_str, split_by = Regexp.new('\s+'), join_by = ' ') ⇒ Object 



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# File 'lib/salesforce-orm/sql_to_soql.rb', line 7

def convert_aliased_fields(sql_str, split_by = Regexp.new('\s+'), join_by = ' ')
  spcial_char_regex = /[=<>!,]+/
  sql_str.split(split_by, -1).map do |keyword|
    if aggregate_function?(keyword)
      aggregate_data = keyword.match(/^(.*)\((.*)(\).*)/i).captures
      raise Error::CommonError, 'Invalid aggregate function' unless aggregate_data[1]
      "#{aggregate_data[0]}(#{convert_aliased_fields(aggregate_data[1])}#{aggregate_data[2]}"
    elsif keyword =~ spcial_char_regex
      convert_aliased_fields(keyword, spcial_char_regex, keyword.gsub(spcial_char_regex).first)
    else
      klass.field_map[keyword.to_sym] || keyword
    end
  end.join(join_by)
end

#sql_to_soql(sql) ⇒ Object

TODO: optimize this method



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# File 'lib/salesforce-orm/sql_to_soql.rb', line 39

def sql_to_soql(sql)
  # Unescape column and table names
  sql.gsub!('`', '')

  # Remove table namespace from fields
  sql.gsub!("#{QueryBuilder::DUMMY_TABLE_NAME}.", '')

  # Add table name
  sql.gsub!(QueryBuilder::DUMMY_TABLE_NAME, klass.object_name)

  # Convert 1=0 to id IS NULL (id never be NULL, so it a false case)
  sql.gsub!(/\s+1=0(\s*)/i, ' id IS NULL\1')

  # Convert IS NOT to !=
  sql.gsub!(/\s+IS\s+NOT\s+/i, ' != ')

  # Convert IS to =
  sql.gsub!(/\s+IS\s+/i, ' = ')

  # Convert datatime to salesforce format
  sql.gsub!(/'(\d{4}-\d{2}-\d{2}) (\d{2}:\d{2}:\d{2})'/, '\1T\2Z')

  # Convert date to salesforce format
  sql.gsub!(/'(\d{4}-\d{2}-\d{2})'/, '\1')

  # Convert boolean_field = (1|0) to boolean_field = (true|false)
  sql = boolean_data_type_conversion(sql)

  # Convert aliased fields
  convert_aliased_fields(sql).strip
end