1 --[[--

2 value = -- value of the parameter casted to the chosen param_type

3 param.get(

4 key, -- name of the parameter

5 param_type -- desired type of the returned value

6 )

7

8 Either a GET or POST request parameter is returned by this function, or if param.exchange(...) was called before, one of the exchanged parameters is returned. You can specify which type the returned value shall have. If an external request parameter was used and there is another GET or POST parameter with the same name but a "__format" suffix, the parser with the name of the specified format will be automatically used to parse and convert the input value.

9

10 --]]--

11

12 function param.get(key, param_type)

13 local param_type = param_type or atom.string

14 if param._exchanged then

15 local value = param._exchanged.params[key]

16 if value ~= nil and not atom.has_type(value, param_type) then

17 error("Parameter has unexpected type.")

18 end

19 return value

20 else

21 local str = cgi.params[key]

22 local format_info = cgi.params[key .. "__format"]

23 if not str then

24 if not format_info then

25 return nil

26 end

27 str = ""

28 end

29 return param._get_parser(format_info, param_type)(str)

30 end

31 end