Well, not sure why this is necessary but I stuck this in my
dispatcher-servlet.xml:
<property name="commandName" value="findStreetSection"/>
<property name="commandClass"
value="com.myco.myapp.model.FindStreetSection"/>
and now when I debug commandClass is correct. But in my page I still don't
have access to it. If I put something like this:
<form:form method="post" action="findstreetsection.html"
id="findStreetSectionForm">
<form:input path="idStreet" id="idStreet" cssClass="text medium"/>
I get this error:
Neither BindingResult nor plain target object for bean name 'command'
available as request attribute
The fact that I have to manually tell my Controller what its Command class
is worries me, and is probably the problem. But I think my names are all
correct. What's certain is, despite the fact that my commandClass seems to
be set, it doesn't make it to the jsp.
Bummer.
Bob
syg6 wrote:
>
> I tried doing it with showForm() and it kind of works:
>
> protected ModelAndView showForm(
> {
> List<StreetSection> sections = null;
>
> if (request.getParameter("id") != null)
> {
> String id = (String)request.getParameter("id");
> Street street = streetManager.get(new Long(id));
>
> Integer number = new Integer(request.getParameter("number"));
> sections = streetSectionManager.findByNumber(street, number);
> }
>
> ModelAndView mav = new ModelAndView("findSections", "sections",
> sections);
> mav.addObject("streets",referenceData(request));
> return mav;
>
> }
>
> showForm() is called, and referenceData() is also called, thus loading my
> streets. I am not sure if this is the best way to do it ... and I am not
> sure if that second-to-last line, mav.addObject() should be mav.put()
> instead ... both seem to work ...
>
> But now in my page I don't have access to the Command (Model) object. In
> theory, naming my Controller FindStreetSectionController, because of
> conventions, will automatically use my FindStreetSection object, right?
> But when I debug and look at this.commandClass it is null.
>
> What am I doing wrong?
>
> Thanks,
> Bob
>
>
> syg6 wrote:
>>
>> I've been messing with this issue for a while. Basically I want to be
>> able to search for StreetSections. Each StreetSection has a Street and a
>> range of numbers. When you enter the search page the first time you see a
>> list of Streets. Select one and enter a number and it will show you a
>> list of StreetSections.
>>
>> Originally I wanted to do this without a Model object. But when I made my
>> FindStreetSectionsController with an AbstractController I noticed that
>> the referenceData() method, which I use to load all Streets, wasn't being
>> called. That's because it is only called when you use a *FormController
>> and call showForm() or a method that calls showForm() (like onSubmit()).
>> Eventually I got it working but was calling referenceData() by hand,
>> which I thought was ugly. But, I thought, I can't use a *FormController
>> because I am not using a Command (Model) object.
>>
>> After further thought though I realized that on the search page I always
>> have a form with two fields - idStreet and number - the stuff to search
>> for, so I decided to create a FindStreetSection Model object with those
>> two fields , and that way I'd be able to use a BaseFormController and
>> theoretically load automagically the Streets with referenceData().
>>
>> But I have a problem - I am not sure what method to implement in my
>> Controller. I have tried implementing both formBackingObject() and
>> onSubmit() but my test is failing. Here is my Controller:
>>
>> protected Object formBackingObject()
>> {
>> FindStreetSection fss = new FindStreetSection();
>> String id = request.getParameter("id");
>> String number = request.getParameter("number");
>>
>> if (!StringUtils.isBlank(id))
>> {
>> fss.setIdStreet(new Long(id));
>> fss.setNumber(new Integer(number));
>> }
>>
>> return fss;
>> }
>>
>> public ModelAndView onSubmit()
>> {
>>
>> List<StreetSection> sections = null;
>> FindStreetSection fss = (FindStreetSection) command;
>>
>> if (ft.getIdStreet() != null)
>> {
>> Street street = streetManager.get(fss.getIdStreet());
>> sections = streetSectionsManager.findByNumber(street,
>> fss.getNumber());
>> }
>>
>> return new ModelAndView("findStreetSections", "sections", sections);
>> }
>>
>> And here is my test:
>>
>> public void testSearch() throws Exception
>> {
>> MockHttpServletRequest request = newGet("/findstreetsection.html");
>> request.addParameter("id", "1");
>> request.addParameter("number", "196");
>>
>> ModelAndView mav = c.handleRequest(request, new
>> MockHttpServletResponse());
>> ModelMap m = mav.getModelMap();
>>
>> assertNotNull(m.get("sections"));
>> assertTrue(((List) m.get("sections")).size() > 0);
>> }
>>
>> formBackingMethod() is being called but onSubmit() is not, thus my test
>> fails saying sections is null. I think my test is correctly written, I am
>> just not sure which method I need to implement in my Controller.
>> onSubmit() doesn't seem to be it. Looking at other (form) tests, in order
>> to get onSubmit() to be called it seems you have to do something like
>> this:
>>
>> request = newPost("/findstreetsection.html");
>> super.objectToRequestParameters(fss, request);
>> request.addParameter("number", "198");
>>
>> in order for onSubmit() to be called. I tried this as well but no go.
>> Anyway I never need to do any kind of save, update or delete, I simply am
>> using a Command (Model) object to making searching easier. So which
>> method to I need to implement in my Controller to get this to work?
>>
>> Thanks,
>> Bob
>>
>
>
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