1.1 --- a/framework/env/execute/view.lua	Thu Mar 26 16:38:30 2015 +0100
     1.2 +++ b/framework/env/execute/view.lua	Thu Mar 26 16:40:04 2015 +0100
     1.3 @@ -1,9 +1,11 @@
     1.4  --[[--
     1.5 +view_exists =       -- boolean returned if "test_existence" is set to true, otherwise no value returned
     1.6  execute.view{
     1.7    module = module,  -- module name of the view to be executed
     1.8    view   = view,    -- name of the view to be executed
     1.9    id     = id,      -- id to be returned by param.get_id(...) during execution
    1.10 -  params = params   -- parameters to be returned by param.get(...) during execution
    1.11 +  params = params,   -- parameters to be returned by param.get(...) during execution
    1.12 +  test_existence = test_existence  -- do not execute view but only check if it exists
    1.13  }
    1.14  
    1.15  Executes a view directly (without associated filters).
    1.16 @@ -12,14 +14,23 @@
    1.17  
    1.18  function execute.view(args)
    1.19    local module = args.module
    1.20 -  local view = args.view
    1.21 -  trace.enter_view{ module = module, view = view }
    1.22 -  execute.file_path{
    1.23 +  local view   = args.view
    1.24 +  local test   = args.test_existence
    1.25 +  if not test then
    1.26 +    trace.enter_view{ module = module, view = view }
    1.27 +  end
    1.28 +  local result = execute.file_path{
    1.29      file_path = encode.file_path(
    1.30        WEBMCP_BASE_PATH, 'app', WEBMCP_APP_NAME, module, view .. '.lua'
    1.31      ),
    1.32      id     = args.id,
    1.33 -    params = args.params
    1.34 +    params = args.params,
    1.35 +    test_existence = test
    1.36    }
    1.37 -  trace.execution_return()
    1.38 +  if not test then
    1.39 +    trace.execution_return()
    1.40 +  end
    1.41 +  if test then
    1.42 +    return result
    1.43 +  end
    1.44  end