Is there a way to pass an instance variable in my gsp file to Javascript?
This is what I have that doesn't work:
<input type="button" value="Add" onclick="addTo('${person.id}');" />
${person.id} is the ID of the domain instance Person.
That works just fine for me. I'm able to send an id to a javascript function and show it in an alert. Are you getting an error, or is the value just not being passed? Maybe add your javascript to the question.
Related
I'm trying to cover my project with test and faced with problem.
The "press" method of TestCase fails with 'InvalidArgumentException: Unreachable field ""'
However the "see" method sees the needed button
Besides another form on another page tests fine
Hours of debug show me that the issue might be in the fact that the problem form has multiple (with this brackets []) inputs
Test code that fails
$this->type($params['from'], 'from[]');
$this->type($params['event'], 'event[]');
$this->type($params['class'], 'class[]');
$this->type($params['method'], 'method[]');
$this->press('save_handlers');
With form and button everythings is okey
Button:
<button type="submit" class="btn btn-primary btn-block" name="save_handlers">Save</button>
And of course button is in the form tag
Indeed, the problem is linked with the fact that there are attributes with brackets[].
I just had the same problem. I'm using a form with multiple checkboxes, and all of them have the same name (but different id) : codes[]. I'm doing this in order to retrieve them later (in a controller) simply as an array of values.
<input id="perm-0" type="checkbox" name="codes[]" value="perm-0" />
<input id="perm-1" type="checkbox" name="codes[]" value="perm-1" />
<input id="perm-2" type="checkbox" name="codes[]" value="perm-2" />
My friend var_dump() told me that the Symfony component which parses the form inputs doesn't like it when I'm using codes[] with nothing inside the brackets. It is seen as two fields : "codes" and "" instead of codes[]. That's causing the Unreachable field "" error.
A simple solution I found is to simply add an explicit index for the codes[] array :
<input id="perm-0" type="checkbox" name="codes[0]" value="perm-0" />
<input id="perm-1" type="checkbox" name="codes[1]" value="perm-1" />
<input id="perm-2" type="checkbox" name="codes[2]" value="perm-2" />
This way each checkbox is distinct from others, and the method press() does not cause the error any more.
It seems that this doesn't affect the processing of the resulting array in my controller.
This seems rather confusing seeing as the docs state this:
"Press" a button with the given text or name.
While the docblock above the actual press method states the following:
Submit a form using the button with the given text value.
So instead of using the value of the name attribute (save_handler) use the actual text (Save).
$this->press('Save');
I am very new to cs cart. I have read their documentation about calling Ajax with form micrformats. I am able to create a Ajax request. But I would like to call a controller inside my add-on controllers/frondend/ directory names as mycheckout.php. I am using the a hidden file dispatch with the valu mycheckout.mymode. Can any one help me. I actually want to perform some action in my controller. But their documentation did not help me. Thanks in advance.
You can do something like this (use extra "cm-ajax-force" or "cm-ajax-full-render" classes if needed):
<form class="cm-ajax" name="your_name" action="{""|fn_url}" method="post">
<input type="hidden" name="result_ids" value="div_id_to_be_updated" />
{include file="buttons/go.tpl" but_name="mycheckout.mymode" alt=__("Ajax button")}
</form>
Or you can use any button you want (even <input type="submit" name="mychechkout.mymode" value="Ajax!">)
Note that the Ajax request can be also done via simple link:
<a class="cm-ajax cm-post" href="{"mycheckout.mymode?param1=value1¶m2=value2"|fn_url}" data-ca-target-id="div_id_to_be_updated">Ajax!</a>
I'm having a problem with tapestry5. I would like to make an ajax forms in a loop like this one. The problem is that even when I don't put the loop and only make a form inside a table with ajax, tapestry give me this exception:
"Forms require that the request method be POST and that the t:formdata query parameter have values".
<table>
<t:zone t:id="zone" id="zone">
<t:form zone="^">
<label>email</label>
<intput t:type="TextField" t:id="email" value="profile.email"/>
<input t:type="submit" t:id="save" value="Save"/>
</t:form>
</t:zone>
</table>
The most strange thing is when I put the table inside the form, it works fine, but I need put it out. Someone knows what's happening?
Though I'm not completely sure why this exception is happening, you can solve it by using the AjaxFormLoop in stead. Check out the example on the Jumpstart page.
I have view which takes care of all the Ajax submits from the client side. And to differentiate them by I uses different submit button names such as this one
<input type="submit" value="Send" name="send_message">
Suggested from this question.
The only problem is that from the view side it doesn't seems to carry the name to the server side so I cannot use the following if-statement
if 'send_message' in request.POST:
It works if I send it normally with page fresh. But I want to use it with Ajax.
I came up with a hack that you can add this name with jQuery. Simply by after serializing() your data you then concatenate the name attribute by data += "&send_message"
Then the if statement will work. But it doesn't seems so clean. So I wonder if there's a better way to handle this? Or should I make different views to handle the different Ajax calls I have?
You really should post each form to a different URL.
If not, you could add a hidden input with the name of the form as the value.
<input name="form_name" type="hidden" value="form_1" />
views.py:
form_name = request.POST['form_name']
I have an issue with my portlet and I don't know exactly how to solve it.
My portlet adds or retrieves info from liferay's DB by inserting a name in 2 text fields.
After pressing the submit button, I see the response from the server, a JSON response like this:
{"id":301,"name":"Pepo"}
If a user correctly inserted or if the search throws a good result. I have to go back in the browser to see the portal again.
How can I use AJAX to pass the following URL dynamically from the portlet to the server without refreshing the page afterwards?
http://localhost:8080/c/portal/json_service?serviceClassName=com.liferay.test.service.TrabajadorServiceUtil&serviceMethodName=findByName&servletContextName=TrabajadorPlugin-portlet&serviceParameters=[param1]¶m1=NameInsertedByUser
Now I'm using the <form> tag like this:
<%
//Shows "New Employee" in the text field when portlet is rendered, or gets the user input and pass it as a param to the URL
PortletPreferences prefs = renderRequest.getPreferences();
String employee = (String)prefs.getValue("name", "New Employee");
%>
<form id="postForm" method="post" action="http://localhost:8080/c/portal/json_service">
<input name="serviceClassName" type="hidden" value="com.liferay.test.service.TrabajadorServiceUtil" />
<input name="serviceMethodName" type="hidden" value="create" />
<input name="servletContextName" type="hidden" value="TrabajadorPlugin-portlet" />
<input name="serviceParameters" type="hidden" value="[param]" />
<input name="param" type="text" value="<%=employee%>" />
<input type="submit" value="Submit"/>
</form>
I understand how AJAX works, but I need some help to create my function in order to achieve the URL to be correctly sent to the server for both GET and POST requests. This is my first try with AJAX.
Thank you very much, hope somebody understands my problem and could help me.
First of all, I see no point at all to use JSON services here. Just write ordinary portlet with MVC Controller, and in controller write action handling for corresponding actions (storing data, searching etc).
In controller you can directly call static methods like create or findByName from java class com.liferay.test.service.TrabajadorServiceUtil (or TrabajadorLocalServiceUtil) - that's how people usually do it.
If for some reason you really must use JSON, you should of course do these actions with AJAX calls - and render results using JavaScript.
Updating after question update:
The easiest and most correct way to send AJAX requests in Liferay would be to use AlloyUI JS framework that's a part of Liferay. You can read more on how to send AJAX requests with it here: http://www.liferay.com/web/nathan.cavanaugh/blog/-/blogs/4733559
In order to accomplish your goal I'd suggest implementing processAction(ActionRequest actRequest, ActionResponse actResponse) method in your controller/portlet.
In order to actually send data to it you'll have to have actionURL, which you can create using for example portlet:actionURL tag:
<portlet:actionURL /> or with Java code PortletURL actionUrl = portletResponse.createActionURL();
Then just submit your form using POST to this URL, and in actionRequest you'll have your parameters.