webmcp

annotate framework/env/param/get.lua @ 1:985024b16520

Version 1.0.1

New feature: JSON requests

Changes in ui.paginate: Current page setting is directly fetched from CGI params, instead of view params

Changed behavior of load methods of atom library to accept nil as input

Bugfixes in mondelefant_atom_connector timestamp(tz) loaders

Added global constant _WEBMCP_VERSION containing a version string
author jbe
date Tue Nov 17 12:00:00 2009 +0100 (2009-11-17)
parents 9fdfb27f8e67
children 32ec28229bb5
rev   line source
jbe/bsw@0 1 --[[--
jbe/bsw@0 2 value = -- value of the parameter casted to the chosen param_type
jbe/bsw@0 3 param.get(
jbe/bsw@0 4 key, -- name of the parameter
jbe/bsw@0 5 param_type -- desired type of the returned value
jbe/bsw@0 6 )
jbe/bsw@0 7
jbe/bsw@0 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.
jbe/bsw@0 9
jbe/bsw@0 10 --]]--
jbe/bsw@0 11
jbe/bsw@0 12 function param.get(key, param_type)
jbe/bsw@0 13 local param_type = param_type or atom.string
jbe/bsw@0 14 if param._exchanged then
jbe/bsw@0 15 local value = param._exchanged.params[key]
jbe/bsw@0 16 if value ~= nil and not atom.has_type(value, param_type) then
jbe/bsw@0 17 error("Parameter has unexpected type.")
jbe/bsw@0 18 end
jbe/bsw@0 19 return value
jbe/bsw@0 20 else
jbe/bsw@0 21 local str = cgi.params[key]
jbe/bsw@0 22 local format_info = cgi.params[key .. "__format"]
jbe/bsw@0 23 if not str then
jbe/bsw@0 24 if not format_info then
jbe/bsw@0 25 return nil
jbe/bsw@0 26 end
jbe/bsw@0 27 str = ""
jbe/bsw@0 28 end
jbe/bsw@0 29 return param._get_parser(format_info, param_type)(str)
jbe/bsw@0 30 end
jbe/bsw@0 31 end

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