Load a directory in a js with flask - javascript

I would like to declare in a script, a directory.
$images_dir = '{{url_for('.../pictures')}}';
My flask application directory looks like:
Root
-wep.py
-templates
-gallery.html
-static
-pictures
The picture are located inside the pictures folder, and the html page that contains the script is gallery.html which located in the templates folder.
The purpose of that script is to list all the images that are located in the pictures folder and present them as a gallery view when the gallery.html page is loaded.
The script works fine if I run it in a normal apache webserver though.
When I run the web.py, the debuger gives me the error:
BuildError: ('../pictures', {}, None)
So I think the problem is to declare the directory in flask.
UPDATE:
Im using this guy's script : http://davidwalsh.name/generate-photo-gallery
As you can see in the source code:
/** settings **/
$images_dir = 'preload-images/';
$thumbs_dir = 'preload-images-thumbs/';
Im trying to adjust those line to work with flask.

I think you're misunderstanding the purpose of url_for. url_for is for generating a link to one of your application's HTTP endpoints/view functions. You don't need any flask-specific method to get a list of files. You might find glob or os.listdir() helpful for this purpose. Then you can pass a list of the relevant paths to your template for rendering.

Related

How to add a page route with html extension on nextjs

I need to convert a non-nextjs page to nextjs. In order to not lose my SEO ranking, I have to create the route with html extension. To make the picture look better, I am adding the folder structure down below.
Unfortunately, this route ending up as 404 on the browser.
What is the problem? Am I allowed to use Next.js routes like that with html extension?
You can do this via the pageExtensions option in nextJS -
I deployed a vercel app to show how this is working
https://html-ext.vercel.app/search-results.html
Steps
Add the pageExtensions to next.config.js files
i.e
pageExtensions: ['html', 'jsx', 'js', 'tsx', 'ts'],
Rename the file under pages directory to .html.js - search-results.html.js in this case.
This naming convention search-result.html is not allowed for public sub-directories .
There are some ways of showing html file in next but I'm not sure they will workcheck this
But you can easily copy everything inside your <body> tag inside your Next js project and it will work properly . How ever you have to manually add your <meta> and other head tags inside Next js built in <Head/> component .

JavaScript path doesn't load on Live Server extension (VS Code)

HTML and CSS files are working perfectly on my live server. But every time I lead to a .js script it will not be shown on my live server. If I try to load the .js file directly through the URL it shows "Cannot GET /line.js". I already tried out everything I've found on the internet but it's still not working. Here are the points I checked/did:
Installed Code Runner
Installed Node.js = node.js system path done
Settings = Live Server Config = specified browser
"liveServer.settings.CustomBrowser": "chrome" on JSON settings
.js file is in a separate folder and accessed via <script src="line.js"></script> on index.html
Chrome is set as default browser on my system
Thanks for your inputs.
If the js file is in a separate folder, you need to provide the exact route to the folder in the script tag, since in the current form it is trying to find the js file in the root directory. The script tag should look like this:
<script src="FOLDER_NAME/line.js"></script>
It's possible that your javascript file is being loaded before the HTML page is rendered. You can try adding "defer" to your script tag like this:
<script src="demo_defer.js" defer></script>

Getting blank page while deploying extjs6 application in liferay6?

While trying to deploy Extjs Applicaiton getting blank portlet in Liferay not sure what is the issue can someone tell where to add js file currently I am adding them in .html file also i tried to add them all in Liferay-Portal.xml. one more thing which all file need to add to these location i am adding App.js, Main.js, ext-all.js
Below are files I have added in liferay-portal-xml.
before this I have also tried to add all files in index.jsp
<?xml version="1.0"?>
<liferay-portlet-app>
<portlet>
<portlet-name>d1523bb0-7f00-0001-4cfb-83e75e3cc848</portlet-name>
<requires-namespaced-parameters>false</requires-namespaced-parameters>
<icon>/img/task_list.png</icon>
<instanceable>false</instanceable>
<header-portlet-css></header-portlet-css>
<footer-portlet-javascript>/examplecalculator/ext-all-debug.js</footer-portlet-javascript>
<footer-portlet-javascript>/examplecalculator/app.js</footer-portlet-javascript>
<footer-portlet-javascript>/examplecalculator/theme-crisp-debug.js</footer-portlet-javascript>
<footer-portlet-javascript>/examplecalculator/app/view/main/Main.js</footer-portlet-javascript>
<footer-portlet-javascript>/examplecalculator/app/view/main/MainModel.js</footer-portlet-javascript>
<footer-portlet-javascript>/examplecalculator/app/view/main/MainController.js</footer-portlet-javascript>
<user-principal-strategy>screenName</user-principal-strategy>
<private-request-attributes>false</private-request-attributes>
<active>true</active>
</portlet>
</liferay-portlet-app>
According to the documentation for <footer-portlet-javascript> (emphasis mine):
Set the path of JavaScript that will be referenced in the page's footer relative to the portlet's context path.
e.g. your examplecalculator/ in the declaration doesn't belong there.

PHP code-igniter

I'm having troubles calling my external js files from my views php pages. The js files are saved in the "resources" folder in the root folder i.e "root/resources/scripts/myfile.js" just like the "root/application" and the "root/system" folder.
so in one of my php files in the views folder i am using this code:
<script type="text/javascript"
src="<?php echo base_url();?>resources/scripts/welcome.js">
and this php file is located in "root/application/views/welcome.php"
and still my page cannot link with the java script so i am stuck big time.
regards
k..
Try this:
<script src="<?= base_url('resources/scripts/myfile.js')?>"></script>
Looking at your question and the comments below your question, it seems you are using "resource" in one example and "resources" in another example.
Once fixed, view the source of the page (I use FireFox, as it makes the links clickable), search for "welcome.js". Once found, click on the link for that file. If you see javascript, it means the file is found, alternatively you will see a 404 error.
First of all check if the resource folder is available,
The java script file is available and the file naming is in the same small or capital case, and server has public permission of the file and folder.
by the way your code has missing end tag
</script>

Linking to javascript in a view subdirectory?

I have a view folder called 'HelloWorld', inside it I have another folder called 'table' with stuff inside it, I have something located here: table/media/js/jquery.js under the helloworld directory, I've set it to 'copy always' and its build action i s'Content'.
In the index of the view control I do this:
<script type="text/javascript" language="javascript" src="table/media/js/jquery.js")></script>
But for some reason it can't find it, if I try to manually go to it via the URL (i.e. http://localhost:XXXX/HelloWorld/table/media/js/jquery.js) the server still can't find it.
Any ideas how I'm supposed to make this work?
The View folder is not browsable for security reasons, then you cannot serve files like your javascript file.
See the web.config inside the View folder, the handler BlockViewHandler does this,
create a similar structure within the content folder if you need to organize files.
Assuming you have created the following folder: ~/HelloWorld/table/media/js/jquery.js where ~ is the root of your web site I would recommend you using url helkpers in order to generate proper url:
<script type="text/javascript" src="#Url.Content("~/HelloWorld/table/media/js/jquery.js")")></script>
On the other hand the Views folder is a special folder in which you should put only your MVC views and not static files such as css and javascript that are intended to be served directly on the client.

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