webmcp

view framework/env/param/get_id.lua @ 567:5e3ebe9fd0ce

Added tag v2.2.1 for changeset 3b71fdb3a00d
author jbe
date Wed Apr 28 13:07:52 2021 +0200 (2 months ago)
parents eeea5b7f31d4
children
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 local str = request.get_id_string()
21 if str then
22 return param._get_parser(nil, param_type)(str)
23 else
24 return nil
25 end
26 end
27 end

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