--- loncom/interface/Attic/lonwizard.pm 2003/02/10 21:27:27 1.5 +++ loncom/interface/Attic/lonwizard.pm 2003/02/14 00:41:50 1.9 @@ -103,6 +103,13 @@ sub new { =cut +# Sometimes the wizard writer will want to use the result of the previous +# state to change the text of the next state. In order to do that, it +# has to be done during the declaration of the states, or it won't be +# available. Therefore, basic form processing must occur before the +# actual display routine is called and the actual pre-process is called, +# or it won't be available. +# This also factors common code out of the preprocess calls. sub declareVars { my $self = shift; my $varlist = shift; @@ -119,6 +126,12 @@ sub declareVars { { $self->{VARS}->{$element} = $ENV{$envname}; } + + # If there's an incoming form submission, use that + $envname = "form." . $element . ".forminput"; + if (defined ($ENV{$envname})) { + $self->{VARS}->{$element} = $ENV{$envname}; + } } } @@ -366,48 +379,46 @@ sub handler { $r->rflush(); my $mes = <This wizard will allow you to

- - +

This wizard will allow you to set open, due, and answer dates for problems. You will be asked to select a problem, what kind of date you want to set, and for whom the date should be effective.

After the wizard is done, you will be shown where in the advanced interface you would have gone to change the parameter you have chosen, so in the future you can do it directly.

+ +

Press Next -> to begin, or select <- Previous to go back to the previous screen.

WIZBEGIN my $wizard = Apache::lonwizard->new("Course Parameter Wizard"); $wizard->declareVars(['ACTION_TYPE', 'GRANULARITY', 'TARGETS', 'PARM_DATE', 'RESOURCE_ID', 'USER_NAME', 'SECTION_NAME']); - my %dateTypeHash = ('open_date' => "Opening Date", - 'due_date' => "Due Date", - 'answer_date' => "Answer Date"); + my %dateTypeHash = ('open_date' => "opening date", + 'due_date' => "due date", + 'answer_date' => "answer date"); + my %levelTypeHash = ('whole_course' => "all problems in the course", + 'map' => 'the selected folder', + 'resource' => 'the selected problem'); - Apache::lonwizard::message_state->new($wizard, "START", "Welcome to the Assignment Parameter Wizard", $mes, "CHOOSE_ACTION"); - Apache::lonwizard::switch_state->new($wizard, "CHOOSE_ACTION", "What do you want to do?", "ACTION_TYPE", [ - ["open_date", "Set an Open Date for a problem", "CHOOSE_LEVEL"], - ["due_date", "Set a Due Date for a problem", "CHOOSE_LEVEL"], - ["answer_date", "Set an Answer Open Date for a problem", "CHOOSE_LEVEL" ] ]); - Apache::lonwizard::switch_state->new($wizard, "CHOOSE_LEVEL", "Parameter Granularity", "GRANULARITY", [ - ["whole_course", "Set for Whole Course", "CHOOSE_STUDENT_LEVEL"], - ["map", "Set for a Folder/Map", "CHOOSE_FOLDER"], - ["resource", "Set for a Particular Problem", "CHOOSE_RESOURCE"]], - "How general should this setting be?"); - Apache::lonwizard::resource_choice->new($wizard, "CHOOSE_FOLDER", "Select Folder", "", "", "CHOOSE_STUDENT_LEVEL", "RESOURCE_ID", sub {my $res = shift; return $res->is_map();}); - Apache::lonwizard::resource_choice->new($wizard, "CHOOSE_RESOURCE", "Select Resource", "", "", "CHOOSE_STUDENT_LEVEL", "RESOURCE_ID", sub {my $res = shift; return $res->is_map() || $res->is_problem();}, sub {my $res = shift; return $res->is_problem(); }); - Apache::lonwizard::switch_state->new($wizard, "CHOOSE_STUDENT_LEVEL", "Parameter Targets", "TARGETS", [ - ["course", "Set for All Studen####n Course", "CHOOSE_DATE"], - ["section", "Set for Section", "CHOOSE_SECTION"], - ["student", "Set for an Individual Student", "CHOOSE_STUDENT"]], - "Whom should this setting affect?"); - + Apache::lonwizard::message_state->new($wizard, "START", "Welcome to the Assignment Parameter Wizard", $mes, "CHOOSE_LEVEL"); + Apache::lonwizard::switch_state->new($wizard, "CHOOSE_LEVEL", "Which Problem or Problems?", "GRANULARITY", [ + ["whole_course", "Every problem in the course", "CHOOSE_ACTION"], + ["map", "Every problem in a particular folder", "CHOOSE_FOLDER"], + ["resource", "One particular problem", "CHOOSE_RESOURCE"]], + "Which problems do you wish to change a date for?"); + Apache::lonwizard::resource_choice->new($wizard, "CHOOSE_FOLDER", "Select Folder", "Select the folder you wish to set the date for:", "", "CHOOSE_ACTION", "RESOURCE_ID", sub {my $res = shift; return $res->is_map();}); + Apache::lonwizard::resource_choice->new($wizard, "CHOOSE_RESOURCE", "Select Resource", "", "", "CHOOSE_ACTION", "RESOURCE_ID", sub {my $res = shift; return $res->is_map() || $res->is_problem();}, sub {my $res = shift; return $res->is_problem(); }); + my $levelType = $levelTypeHash{$wizard->{VARS}->{GRANULARITY}}; + Apache::lonwizard::switch_state->new($wizard, "CHOOSE_ACTION", "Parameter Type", "ACTION_TYPE", [ + ["open_date", "Set an open date", "CHOOSE_DATE"], + ["due_date", "Set a due date", "CHOOSE_DATE"], + ["answer_date", "Set an answer open date", "CHOOSE_DATE" ] ], + "What parameters do you want to set for $levelType?"); my $dateType = $dateTypeHash{$wizard->{VARS}->{ACTION_TYPE}}; - Apache::lonwizard::choose_section->new($wizard, "CHOOSE_SECTION", "Select Section", "Please select the section you wish to set the $dateType for:", "", "CHOOSE_DATE", "SECTION_NAME"); - Apache::lonwizard::choose_student->new($wizard, "CHOOSE_STUDENT", "Select Student", "Please select the student you wish to set the $dateType for:", "", "CHOOSE_DATE", "USER_NAME"); - Apache::lonwizard::date_state->new($wizard, "CHOOSE_DATE", "Set Date", "PARM_DATE", "FINISH", "What should the $dateType be set to?"); + Apache::lonwizard::date_state->new($wizard, "CHOOSE_DATE", "Set Date", "PARM_DATE", "CHOOSE_STUDENT_LEVEL", "What should the $dateType be set to?"); + Apache::lonwizard::switch_state->new($wizard, "CHOOSE_STUDENT_LEVEL", "Students Affected", "TARGETS", [ + ["course", ". . . for all students in the course", "FINISH"], + ["section", ". . . for a particular section", "CHOOSE_SECTION"], + ["student", ". . . for an individual student", "CHOOSE_STUDENT"]], + "Set $dateType of $levelType for. . ."); + + Apache::lonwizard::choose_section->new($wizard, "CHOOSE_SECTION", "Select Section", "Please select the section you wish to set the $dateType for:", "", "FINISH", "SECTION_NAME"); + Apache::lonwizard::choose_student->new($wizard, "CHOOSE_STUDENT", "Select Student", "Please select the student you wish to set the $dateType for:", "", "FINISH", "USER_NAME"); Apache::lonwizard::parmwizfinal->new($wizard, "FINISH", "Confirm Selection"); $r->print($wizard->display()); @@ -429,6 +440,8 @@ It is importent to remember when constru None of the pre-packaged states correctly handle there being B input, as the wizard does not currently have any protection against errors in the states themselves. (The closest thing you can do is set the wizard to be done and display an error message, which should be adequate.) +By default, the wizard framework will take form elements of the form {VAR_NAME}.forminput and automatically insert the contents of that form element into the wizard variable {VAR_NAME}. You only need to use postprocess to do something fancy if that is not sufficient, for instance, processing a multi-element selection. (See resource choice for an example of that.) + =head2 lonwizstate methods These methods should be overridden in derived states, except B which may be sufficient. @@ -646,7 +659,7 @@ sub render { foreach (@keys) { $result .= "\n"; } $result .= "\n\n"; @@ -663,7 +676,7 @@ sub postprocess { my $wizard = $self->{WIZARD}; my $formvalue = $ENV{'form.' . $self->{VAR_NAME} . '.forminput'}; if ($formvalue) { - $wizard->setVar($self->{VAR_NAME}, $formvalue); + # Value already stored by Wizard $wizard->changeState($self->{NEXT_STATE}); } else { $self->{ERROR_MSG} = "Can't continue the wizard because you must make" @@ -745,11 +758,10 @@ sub render { } sub postprocess { + # Value already stored by wizard my $self = shift; my $wizard = $self->{WIZARD}; my $chosenValue = $ENV{"form." . $self->{VAR_NAME} . '.forminput'}; - $wizard->setVar($self->{VAR_NAME}, $chosenValue) - if (defined ($self->{VAR_NAME})); foreach my $choice (@{$self->{CHOICE_LIST}}) { @@ -858,7 +870,7 @@ sub render { } else { $result .= "\n"; } $result .= "\n"; @@ -870,7 +882,7 @@ sub render { } else { $result .= '\n"; } $result .= ",\n"; @@ -882,43 +894,50 @@ sub render { } else { $result .= "\n"; } $result .= ",\n"; # Display Hours and Minutes if they are called for if (!$self->{DISPLAY_JUST_DATE}) { + # Build hour $result .= " :\n"; $result .= "\n"; - - $result .= ""; } if (defined ($self->{MESSAGE_AFTER})) { @@ -1152,10 +1171,15 @@ sub postprocess { return; } - my $chosenValue = $ENV{"form." . $self->{VAR_NAME} . ".forminput"}; - $wizard->setVar($self->{VAR_NAME}, $chosenValue) - if (defined($self->{VAR_NAME})); - + if (!$ENV{'form.' . $self->{VAR_NAME} . '.forminput'}) { + $self->{ERROR_MSG} = "Can't continue wizard because you must ". + "select a resource."; + return; + } + + + # Value stored by wizard framework + $wizard->changeState($self->{NEXT_STATE}); } @@ -1174,18 +1198,13 @@ sub render { $vals->{$curVal} = 1; } - $result .= $self->{MESSAGE_BEFORE} if (defined $self->{MESSAGE_BEFORE}); - - # Get the course nav map - my $navmap = Apache::lonnavmaps::navmap->new( - $ENV{"request.course.fn"}.".db", - $ENV{"request.course.fn"}."_parms.db", 0, 0); - - if (!defined($navmap)) { - return "Something has gone wrong with the map selection feature. Please contact your administrator."; + if (defined $self->{ERROR_MSG}) { + $result .= '' . $self->{ERROR_MSG} . '

'; } - my $iterator = $navmap->getIterator(undef, undef, undef, 0, 0); + $result .= $self->{MESSAGE_BEFORE} . '

' + if (defined $self->{MESSAGE_BEFORE}); + my $filterFunc = $self->{FILTER_FUNC}; my $choiceFunc = $self->{CHOICE_FUNC}; @@ -1206,15 +1225,13 @@ sub render { }; $result .= - &Apache::lonnavmaps::render( { "iterator" => $iterator, - 'cols' => [$renderColFunc, + &Apache::lonnavmaps::render( { 'cols' => [$renderColFunc, Apache::lonnavmaps::resource()], 'showParts' => 0, 'queryString' => $wizard->queryStringVars() . '&folderManip=1', - 'url' => '/adm/wizard'} ); + 'url' => '/adm/wizard', + 'filterFunc' => $filterFunc } ); - $navmap->untieHashes(); - $result .= $self->{MESSAGE_AFTER} if (defined $self->{MESSAGE_AFTER}); return $result;