am going with some background information first
I have a clash between Dojo and Prototype.js on the client side, so to fix this I rewrote the client side hooks in plain javascript.
But now the issue is since Prototype.js is not being imported, the ajax functions created by the render do not work. Is there anyway I could rewrite them? Or use jquery atleast. I am using RoR v2.3.8 and updating is out of the question, so is messing with the dojo or dojo content.
I thought I could try send the prototype.js tag with the response but I have no idea how, after reading a lot of documentation am told to insert some javascript tag but where.
also is there anyway to edit actioncontroller
Related
Does anyone tried to play with async: true for js includes in Rails? I mean it works great but just if you are not using jQuery. If you do, then you could face some strange effects like "$" is not defined and etc. There is plenty of articles how to avoid that, but all of them seems to be done with no Rails in mind. For example, this one: http://www.yterium.net/jQl-an-asynchronous-jQuery-Loader
Seems like I have to move jQuery from applicaction.js - means out from being putted into one big file with other JS I have.
Just wonder is there some "rails-way" of loading js asynchronously since Google is strongly recommended to do that (it is affected a page load speed a lot, and as a result - your Page Rank)?
This is a browser issue, not a Rails issue. In short, you can't do this on most browsers. This will cause a dependency error, which is what the error points to. One solution is to add the dependency in a file with all the dependent code.
However, this problem has been solved in ES6, using JavaScript imports. There is a guide on how to implement these imports in another answer here. See How do I include a JavaScript file in another JavaScript file? for that info.
This link sets up the context for this question.
I am trying to use Javascript as the backend code for my mobile application(windows) which has a native UI(not HTML UI). That means I don't have HTML. Hence I don't have DOM.
I have successfully been able to create functions which does some computation locally like add, call them from my C# or Java code and get the return values.
Now I am running into 2 problems
1) I am trying to take my javascript functions one step further by trying to call server apis from the Javascript using XMLHttpRequest. But I am getting a script execution exception in my C#(This usually occurs if the script was unable to run). I think this is because XMLHttpRequest needs DOM and I don't have DOM.
If my first problem is solved then
2)How to get hold of a different Javascript file when I don't have DOM. For example let's say I want to use Jquery to simplify my requests using $.Ajax etc, but how do I load the Jquery library because I don't have the luxury of script tag neither do I have the luxury of using $.getScript because I am trying to get Jquery itself.
One possible solution
There is one solution that I can think on top of my head. Use a webview and load your html in the WebView and use Jint for Javascript. But then the question arises How do I use WebView in par with Jint.
I would be glad if someone can point me in the right direction.
Thanks in advance.
I'm working with a client that has a view that, after a user logs in, this view loads a template, that dynamically draws a canvas with jQuery, and generates an image copy of the canvas.
They want to protect the jQuery code, hiding the process in the python code.
I tried using PyExecJS, but it doesn't support jQuery, since there is no DOM.
I've also tried urllib2, mechanize and Selenium, but none worked.
Is there an alternative or have I missed something?
Update/Resolution: In case someone stumbles onto this question: I ended up using Selenium for Python to load the JS function, fed it the necessary data and extracted the image from it. It has a bit of an overhead, but since the main goal was to keep the JS code obfuscated, it worked.
If I understand correctly, you are trying to hide jquery code.
You can't hide jquery code from the user, because django processes python code before it serves up the template, there's no way to protect jquery code with python. Really the best thing you can do is to minimize and obfuscate the code, but that only makes it difficult for human reading.
I'm trying -unsuccessfully- to get a Three.js project to work within the Ruby on Rails framework
I keep thinking that there must be an easier way to do this than the way I'm doing it at the moment
First I googled for a guide/tutorial on how to port working Three.js code to rails and found very little on the subject. Which I figure means: either people don't do it very often -or- that it's so obvious that no one has bothered to document it.
Next
I googled for a three.js gem and found one here - http://rubygems.org/gems/threejs-rails
(which I gave up trying to get to work - after much messing around with the manifest file)
Next
I installed the source of Three.js into the vendors folder and messed around with the manifest file again. This time I had more success - although there seems to be dependency issues within Three.js that require_tree (and myself) are oblivious to.
So theoretically, I could probably get it to work after a several hours of figuring out the Three.js loading sequence, but this doesn't feel right.
I feel like I've gone down a blind alley here and I'm missing something obvious.
is there a better way to do this?
Rails is, primarily, a back end server side framework. Three.js is a front end library for rendering WebGL in a browser. They have little to do with each other. I think you're trying too hard.
The process is the same as adding something like jQuery, or any other javascript library.
Drop the three.js file in app/assets/javascripts/three.js
Add #= require three to your application.js.coffee
Ensure that javascript_include_tag('application') is part of your application layout template
Now launch the server, load a page, and type THREE in the javascript console. If you get a return value, your good! Now write some custom javascript, save it in app/assets/javascripts and include it on the pages you want to do awesome 3D stuff.
You can also use the following gem threejs-rails that I created for my rails app today. It works right out of the box if you're on rails 4+. Fork and submit a PR if you need further support on it!
Most efficient would obviously be via CDN, I plan to add that support soon.
I found it the probably easiest way - though not the proper Rails way - to include all dependencies as written here https://guides.rubyonrails.org/working_with_javascript_in_rails.html
and then to simply create a partial with the JS code inside of a script type="module" tag. Though Alex Wayne's way is probably better, this one works, too.
I was put in charge of managing and enhancing a JavascriptMVC framework that works with python for the backend. I am more of a backend developer, but need to try to expedite some front end features.
Having dealt with jquery in the past, I thought I could apply some changes onto the DOM after it had loaded. Here is what I tried...
I did try to apply a raw jquery script directly to the end of the index.html page (and after the steal call).
I also tried to rap it into the main steal(); call in an init.js script.
Then attempted to place it in the section in question to be altered as a $.Controller .
Obviously this did not work.
My question: How should I inject jquery into the DOM after its been rendered?
I just learned the scheme that the previous people had created in this framework. It was quicker than I thought, but still painful and more to come.