1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/framework/env/request/add_variable.lua	Sat Mar 14 23:39:47 2015 +0100
     1.3 @@ -0,0 +1,22 @@
     1.4 +--[[--
     1.5 +request.add_variable(
     1.6 +  tbl,                 -- table where the variable is stored
     1.7 +  key,                 -- name of variable (key within the table)
     1.8 +  value                -- optional value for initialization
     1.9 +)
    1.10 +
    1.11 +Marks a field of a table to be re-initialized for every request. If this variable (i.e. the field of the table) is modified before the first requst is being handled (e.g. during configuration or pre-/post-fork initializers), then the modified value will be used for re-initialization on every request. See env/request/__init.lua for an example.
    1.12 +
    1.13 +--]]--
    1.14 +
    1.15 +function request.add_variable(tbl, key, value)
    1.16 +  local initialized_value
    1.17 +  tbl[key] = value
    1.18 +  request.add_initializer(function(first)
    1.19 +    if first then
    1.20 +      initialized_value = tbl[key]
    1.21 +    else
    1.22 +      tbl[key] = initialized_value
    1.23 +    end
    1.24 +  end)
    1.25 +end