webmcp
view framework/env/param/get_id.lua @ 63:4f38db8354b0
Added tag v1.1.3 for changeset 68170813cca5
| author | jbe | 
|---|---|
| date | Tue Apr 03 00:56:02 2012 +0200 (2012-04-03) | 
| parents | 9fdfb27f8e67 | 
| children | 2f8d8edd1836 | 
 line source
     1 --[[--
     2 value =        -- value of the id casted to the chosen param_type
     3 param.get_id(
     4   param_type   -- desired type of the returned value
     5 )
     7 Same as param.get(...), but operates on a special id parameter. An id is set via a __webmcp_id GET or POST parameter or an 'id' option to execute.view{...} or execute.action{...}. In a normal setup a beauty URL of the form http://www.example.com/example-application/example-module/example-view/<id>.html will cause the id to be set.
     9 --]]--
    11 function param.get_id(param_type)
    12   local param_type = param_type or atom.integer
    13   if param._exchanged then
    14     local value = param._exchanged.id
    15     if value ~= nil and not atom.has_type(value, param_type) then
    16       error("Parameter has unexpected type.")
    17     end
    18     return value
    19   else
    20     return param.get("_webmcp_id", param_type)
    21   end
    22 end
