I have an elearning APP in Flutter, which can render html files stored online. Now I want to download these files to assets, so they may be accessed offline. For this, I will download a zipped file with the entire html's folder and unzip it.
The problem is the html has many subfolders with it's own assets, which I would have to declare in the pubsp.yaml in order to access, but these downloadable htmls are constantly being added (every new course has new files).
I see a few ways to solve the problem:
Somehow declare access to subfolders in the pubsp.yaml.
As far as I know, this cannot be done.
Update the folder access for the installed APP dynamically.
As far as I know, this cannot be done.
Read the html file without unziping it.
I don't know if this is doable (I'm using webview_flutter_plus to render) and weather it would allow access to files in folders inside the zip without declaring them in the .yaml.
Pre-load empty folders inside assets that would mimic the html folder structure, declare them in the .yaml and then unzip and read the htmls from these folders. I would create some 100 of them in order to accomodate a large number of course downloads.
I believe this method would work, but it seems very cumbersome and inelegant.
So my questions are:
Would any of methods 1-3 work and if so how?
Would method 4 work?
Is it possible to reference folders in the .yaml file without them existing? It would make method 4 far easier.
Is there any other way to accomplish this? I cannot change the language, since the APP is months along, but plugins are fair game.
Thanks in advance!
Related
I want to save an image in angular's Assert folder or in a folder created by me. I occupy the input file and a button, nothing more when I save the selected image, I want it to be uploaded or copied to said folders or folder. Can this be done without the backend?
I have been looking for information and watching videos but most of them either use firebase or some other service, I just want it locally. Please, your help would help me a lot.
If I understand your question correctly, you are asking if, at runtime, you can create a file in your Angular applications' 'assets' folder.
This is not possible, because the 'assets' folder is a compile-time artifact. It only exists in your source code tree. In the compiled application, the assets folder does not exist.
Furthermore, when the folder exists, it only does so on the computer on which you wrote the application. The user is running it in their web browser, which is generally running on their computer, not yours.
Now, if you are just asking if you can save a file on the user's computer, take a look at File Save functionality in Angular
I'm using electron-build to transform a "website" into an "app" and it's pretty awesome! But the compilation process obviously transforms the HTML pages into other types of files.
Is there any compilation option, flag or anything that can allow me to keep the html files and resources so that a curious user can click on index.html and use the app in their favorite web browser?
I havent found anything, so I'm considering simply copy pasting the source files in the output folder, but that's a lot of duplicate data :)
Thanks!
I'm using Perl Catalyst framework to build an application that needs to store several files in a MySQL database (among other things). I want to store the name, path, extension, etc of the files to retrieve them later; because they are supposed to be accessible from the application (e.g: a PDF document uploaded for someone, must be available for download later). Can I do this? I found several ways to do it in PHP, but none for perl. Any ideas?
EDIT
I know I can access to some information using Catalyst::Request::Upload. I used this in the past for BLOB storage, but I dont't know how to get file information nor how to know where does catalyst store tmp files.
So, basically, the questions that arise when trying to this are:
How to know where are my files being stored once I submit them?
How to copy these files (which I assume go to a tmp folder somewhere) to a folder in my computer/server?
How to retrieve these files once I have them stored?
EDIT 2
I've checked again the documentation for Catalyst::Request::Upload (http://search.cpan.org/~jjnapiork/Catalyst-Runtime-5.90114/lib/Catalyst/Request/Upload.pm) and found out how to know where are my files being stored and how to copy them to a new non-tmp location. The only question that remains:
How do I generate a download link for these files??
The solution was pretty straight-forward.
First Make sure your 'tmp' folder is configured in the Catalyst app file (e.g: MyApp.pm).
Now, use Catalyst::Request::Upload to create the file object with the uploaded file. Sort of...
my $upload = $req->upload('input_field_name');
Now make sure you get all the data you want to store from the file. I, personally, got just the filename, MIME Type and size.
my $filename = $upload->filename;
my $size = $upload->size;
my $type = $upload->type;
Store into the database.
Now, create a folder within the public content of the page to copy the files to, and perform the copy like:
$upload->copy_to('path/to/the/public/folder');
To retrieve the files, just create a link with the base URL to the public folder and the filename you stored in the database.
Hope it helps someone... it was pretty obvious, though; but it cracked my head a little.
I am making SharePoint spaces for various departments in insurance company. One of them wants to save and share their outputs via SharePoint. That outputs are maps with risk areas. Because maps includes many data layers, all the files are in one folder.
I have uploaded a folder with CSS, JSON, JS and HTML files to the library in SharePoint, but when I doubleclicked on HTML file, the page will not load. I think it's due to the JSON files.
What I need is to run whole page correctly with simple doubleclick.
Can anyone give me advice how to run other files supporting HTML with doubleclicking on HTML file?
Thank you.
I've had this same issue. To get the HTML to play in the browser (without SharePoint trying to make you download it), you need to rename the HTML file to an ASPX file.
To do this, you need to be in the Windows Explorer view (from a document library, go Library > Open with Explorer). Then change the file name from index.html to index.aspx.
However, if you're also using JSON files, that could be an issue. SharePoint prohibits you from uploading JSON files unfortunately.
I would like to allow my users to upload HTML content to my AppEngine web app. However if I am using the Blobstore to upload all the files (HTML files, css files, images etc.) this causes a problem as all the links to other files (pages, resources) will not work.
I see two possibilities, but both of them are not very pretty and I would like to avoid using them:
Go over all the links in the html files and change them to the relevant blob key.
Save a mapping between a file and a blob key, catch all the redirections and serve the blobs (could cause problems with same name files).
How can I solve this elegantly without having to go over and change my user's files?
Because app engine is running your content on multiple servers, you are not able to write to the filesystem. What you could do is ask them to upload a zip file containing their html, css, js, images,... The zipfile module from python is available in appengine, so you can unzip these files, and store them individually. This way, you know the directory structure of the zip. This allows you to create a mapping of relative paths to the content in the blobstore. I don't have enough experience with zipfile to write a full example here, I hope someone more experienced can edit my answer, or create a new one with an example.
Saving a mapping is the best option here. You'll need to identify a group of files in some way, since multiple users may upload a file with the same name, then associate unique pathnames with each file in that group. You can use key names to make it a simple datastore get to find the blob associated with a given path. No redirects are required - just use the standard Blobstore serving approach of setting the blobstore header to have App Engine serve the blob to the user.
Another option is to upload a zip, as Frederik suggests. There's no need to unpack and store the files individually, though - you can serve them directly out of the zip in blobstore, as this demo app does.