Grails: getting DOM string from g.render? - grails

I need to get the DOM string of a template. However, a highCharts chart is added to the template after it is loaded. When I use g.render, I do not get the chart in the resultant string. Basically, the javascript doesn't run. Can anyone help?

If some kind of javascript has to run on the client, before the server is doing something else, you have to use ajax to make a callback from the client. See the grails ajax docs for code examples.

Related

Posting to a web form and catching results from JavaScript code

How would I go about achieving the following
I have some HTML data triggered from an Evernote new note action
I need to pass this HTML string to a website via an http post with form variables
I then need to catch the resulting web page text in a variable to use in my next action.
For clarity the website simply takes some HTML and converts it to markdown passing it back out as the body of the resulting page
Regards in advance
Dan
Sweet! So I've got this working. In my example, text is some html I pulled out of a dummy previous step:
The output is:
Which has the markdown as a key. If you want to tweak other data based on the api params, you can do that as GET params below html
​Let me know if you've got any other questions!

Why moving the code from html into .js causes issue?

I have asp.net mvc project with knockout.js so my index page is getting really huge because of lots of javascript functionality.
I'd love to move js code into a separate file but it does not allow me to apply it to the most of the code because if I have something like
$.ajax({
url: "#Html.Raw(#Url.Action("Load"))",
Then it pops up a error if I move this part of the code into another file.
Please advise how can I resolve this issue?
Javascript files are not parsed by ASP.net, so the variables you have of #Html.Raw and #Url.Action("Load") will never be processed.
As #James Lai noted, server side code isn't parsed as such by ASP.Net. See this post for a workaround, or you can pick and choose which scripts can still stay on the page (with server-side code) instead of the "everything" - your choice as to which approach meets your requirements.
Javascript files are not parsed by ASP.NET MVC, thus #Html.Raw(#Url.Action("Load")) will not work in javascript file.
Heres workaround
Instead declare a variable in view.cshtml. In script section as
<script type="text/javascript">
var actionUrl = '#Url.Action("Load", "Controller")';
</script>
And use actionUrl in javascript file.

multi line tag in grails or html

With a grails app and from a local database, I'm returning some text in a xml format.
I can return it well formed in a <textarea></textarea> tag with the correct indenting (tabulation, line return,...etc.)
I want to go a bit further. In the text I'm returning, there are some <img/> tags and I'd like to replace those tag by the real images themselves.
I searched around and found no solution as of now. I understood that you can't add an image to a textarea (other then in a background), and if I choose a div tag, I won't have the indenting anymore (and therefore, harder to read)
I was wondering if using a <g:textField/> or an other tag from the grails library will do the trick. And if so, How can I append them to a page using jquery.
For example, how to append a <g:textField/> in jquery. It doesn't interpret it and I get this error
SyntaxError: missing ) after argument list [Break On This Error]...+doc).append("<input type="text" id="FTMAP_"+nb_sec+"" ...
And in my javascript file, I have
$("#FTM_"+doc).append("<g:textField id='FTMAP_"+nb_sec+"' ... />
Any possible solutions ?
EDIT
I did forget to mention that my final intentions are to be able to modify the text (tags included) and to have a nice and neat indentation so that it is the easiest possible for the end user.
You are asking a few different questions:
1. Can I use a single HTML tag to include images inside pre-formatted text.
No. You will have to parse the text and translate it into styled text yourself.
2. Is there a tag in the grails standard tags to accomplish this for me?
No.
3. How can I add grails tags from my javascript code.
Grails tags are processed on the server-side, and javascript is processed on the client. This means you cannot directly add grails tags via javascript.
There are a couple methods that can accomplish the same result, however:
You can set a javascript variable to the rendered content of a grails tag. This solution is good for data that is known at the time of the initial request.
var tagOutput = "${g.textField(/* etc */)}";
You can make an ajax request for the content to be added. Then your server-side grails code can render the tags you need. This is better for realtime data, or data that will be updated more than once on a single rendered page.

what is the equivalent of YAHOO.util.Connect.asyncRequest() of YUI in jQuery?

I am working on few js files and there are following functions/methods of YUI being used,I have to change\migrate them to jQuery:
YAHOO.util.Connect.asyncRequest();
YAHOO.util.Dom.getFirstChild(node.childNodes[i])
YAHOO.util.Dom.getAncestorByTagName(el,"ul")
YAHOO.util.Dom.getFirstChild(pqrs)
YAHOO.util.Dom.insertBefore(abcd,xyz)
please answer here or at my mail id,as I m stuck !
YAHOO.util.Connect.asyncRequest(); is the same as jQuery's ajax method. You can use $.ajax() to do the same thing, provided you set up the same parameters.
As for your other methods? I'd need to know where you got some of the parameters from. But,
YAHOO.util.Dom.getFirstChild(node.childNodes[i]) becomes $(node).children().eq(i).first()
YAHOO.util.Dom.getAncestorByTagName(el,"ul") becomes $(el).parent('ul')
YAHOO.util.Dom.getFirstChild(pqrs) becomes $(pqrs)
YAHOO.util.Dom.insertBefore(abcd,xyz) becomes $(abcd).insertBefore(xyz)

Generate URL client-side for jQuery Grid from json field?

We are using Struts 2 and want a jQuery Grid showing a list of accounts. When a user clicks an account we want to take them to a page specific to that account.
At this point I'm looking for suggestions as to the best way to do this. Currently I'm building a URL server side which I then return but this isn't optimal since I don't have access to <s:url>.
One idea I've had is to combine <s:url> and each row Id on the client side but I haven't found a way to do this. Is there a grid would that allow this? or a better way?
Updated Explanation Attempt:
I am returning a json list to jQuery grid. One column in the grid is a url but I can't build that in the service level. Instead I'd love to have a way to use <s:url> when my json results are returned. Is there anyway to do this?
You cannot use <s:url> client side.
The Struts2-Tags get used serverside
to generate the HTML, so there's
basically no difference if you
construct them yourself or let JSP
construct the HTML.
There's the struts2-jQuery Plugin and with it the jQuery grid plugin. Find out more about it here:
https://code.google.com/p/struts2-jquery/
If you know the actionName and have the ID in the list you're iterating over, you can just code the necessary link yourself (if the object in the list has a getter named getId()):
<a href="http://host:port/webapp/actionName?id=<s:property value='id' />">
Hope that helps, if not please show the code of the page and / or dredefine your question.
There isn't a really straight forward way. Here is the answer to "Struts2 URL buiilding in action for JSON" answered on the struts mailing list:
http://old.nabble.com/Struts2-URL-building-in-action-for-JSON.-td30487914.html
If you get a chance let me know how you implement this.

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