is it possible, in odoo 10, to upload a file in the form of a given model ?
The user of the custom module has a list of items that he receives from is clients and he needs the invoices of thoses items. I imagine that this files are pdf files, but not necessarely (But I can tell to upload pdfs only if that is simple...).
The problem is, some times, in other technologies, a file is uploaded, but cannot be read when it is downloaded (some kind of corruption). So I really need to know how to do this in the sipliest and correct way.
Thank you So much for the help.
in your model's py file
upload_file = fields.Binary(string="Upload File")
file_name = fields.Char(string="File Name")
in your xml form view file:
<field name="upload_file" filename="file_name"/>
<field name="file_name" invisible="1"/>
after uploading and saving file the download button shows and file retrived in save format which is uploaded
Related
I am aiming to take a file a user attaches through an Lightning Component and create a document object containing the data.
So far I have overcome the request size limits by chunking the data being uploaded into 1MB chunks. When the Apex Aura method receives these chunks of data it will either create a new document (if it is the first chunk), or will retrieve the existing document and add the new chunk to the end.
Data is received Base64 encoded, and then decoded server-side.
As the document data is stored as a Blob, the original file contents will be read as a String, and then appended with the chunk received. The new contents are then converted back into a Blob to be stored within the ContentVersion object.
The problem I'm having is that strings in Apex have a maximum length of 6,000,000 or so. Whenever the file size exceeds 6MB, this limit is hit during the concatenation, and will cause the file upload to halt.
I have attempted to avoid this limit by converting the Blob to a String only when necessary for the concatenation (as suggested here https://developer.salesforce.com/forums/?id=906F00000008w9hIAA) but this hasn't worked. I'm guessing it was patched because it's still technically allocating a string larger then the limit.
Code's really simple when appending so far:
ContentVersion originalDocument = [SELECT Id, VersionData FROM ContentVersion WHERE Id =: <existing_file_id> LIMIT 1];
Blob originalData = originalDocument.VersionData;
Blob appendedData = EncodingUtil.base64Decode(<base_64_data_input>);
Blob newData = Blob.valueOf(originalData.toString() + appendedData.toString());
originalDocument.VersionData = newData;
You will have hard time with it.
You could try offloading the concatenation to asynchronous process (#future/Queueable/Schedulable/Batchable), they'll have 12MB RAM instead of 6. Could buy you some time.
You could try cheating by embedding an iframe (Visualforce or lightning:container tag? Or maybe a "canvas app") that would grab your file and do some manual JavaScript magic calling normal REST API for document upload: https://developer.salesforce.com/docs/atlas.en-us.api_rest.meta/api_rest/dome_sobject_insert_update_blob.htm (last code snippet is about multiple documents). Maybe jsforce?
Can you upload it somewhere else (SharePoint? Heroku?) and have that system call into SF to push them (no Apex = no heap size limit). Or even look "Files Connect" up.
Can you send an email with attachments? Crude but if you write custom Email-to-Case handler class you'll have 36 MB of RAM.
You wrote "we needed multiple files to be uploaded and the multi-file-upload component provided doesn't support all extensions". That may be caused by these:
In Experience Builder sites, the file size limits and types allowed follow the settings determined by site file moderation.
lightning-file-upload doesn't support uploading multiple files at once on Android devices.
if the Don't allow HTML uploads as attachments or document records security setting is enabled for your organization, the file uploader cannot be used to upload files with the following file extensions: .htm, .html, .htt, .htx, .mhtm, .mhtml, .shtm, .shtml, .acgi, .svg.
I have a custom form using a "managed_file" which uploads to temp folder. Programmatically, I then load that file and move it to its permanent storage (overwriting any existing file with the* name) e.g.
// Upload file
$upfile = $this->entityTypeManager->getStorage('file')->load($fid);
// Source and destination
$sourceUri = $this->fileSystem->realpath($upfile->getFileUri());
$destinationUri = $this->fileSystem->realpath(\Drupal::config('system.file')->get('default_scheme') . "://") . '/x/y/z/XYZ_NEW.pdf';
// Move and overwrite
$this->fileSystem->move($sourceUri, $destinationUri, FileSystemInterface::EXISTS_REPLACE);
All of this works (i.e. the file physically is moved into the correct place with correct name); however, the file displayed in the listings (i.e. /admin/content/files) still shows the incorrect temporary folder as the URI.
Basically the file in the listings page seems to be showing the original filepath and name* of a previously successfully moved* file.
If I load this file with incorrect URI, i.e. using the incorrect temp path, the data loads, but then will not have a file info (as it doesn't exist. Also clicking the filename by browser under listings will show page not found and the URL showing the old URL i.e. /system/temporary?file=XYZ.pdf).
If I load this file by correct URI, i.e. using the correct destination path, file not found - same if I go to the path directly in the browser.
It appears the managed file doesn't know it was moved. How to resolve this bug?
The docs for FileSystem::move say "Moves a file to a new location without database changes or hook invocation."
So you are going to need to update the file entity with the new values..
Try this, untested:
// Upload file
$upfile = $this->entityTypeManager->getStorage('file')->load($fid);
// Source and destination
$sourceUri = $this->fileSystem->realpath($upfile->getFileUri());
$destinationUri = $this->fileSystem->realpath(\Drupal::config('system.file')->get('default_scheme') . "://") . '/x/y/z/XYZ_NEW.pdf';
// Move and overwrite
$newFileName = $this->fileSystem->move($sourceUri, $destinationUri, FileSystemInterface::EXISTS_REPLACE);
// Set the new file path on the file entity.
$upfile->setFileUri($newFileName);
// Set the file to permanent if needed.
$upfile->setPermanent();
// Save entity with changes.
$upfile->save();
I did not test this though.
You can check the functions on the file entity in the docs here
It turns out the class based methods do not update the database
https://api.drupal.org/api/drupal/core%21lib%21Drupal%21Core%21File%21FileSystem.php/function/FileSystem%3A%3Amove/8.9.x
The procedural version does
https://api.drupal.org/api/drupal/core%21modules%21file%21file.module/function/file_move/8.9.x
I'm creating a project of a school. I want to show the uploaded stuff by teachers to students.
But I also need to save the file in the folder which is named as faculty name. Student will be able to browse the main directory and after that he can go in the particular faculties folder.
How can I do it? Any suggestions will be appreciated.
For file upload I would start with example like in this answer. Moving files from temporary folder could be easily done by the file uploading action.
For browsing files in your case I would create an action that is able to navigate to the folder where the files are and get a list of files from that folder. Something like this
String file = application.getRealPath("/upload");
File f = new File(file);
String [] fileNames = f.list();
File [] fileObjects= f.listFiles();
for (int i = 0; i < fileObjects.length; i++) {
if(!fileObjects[i].isDirectory()){
String fname = file+fileNames[i];
out.println(fileNames[i]);
}
}
Then map this files to the JSP as links. When that link is clicked you can retrieve the actual path on the server when action is executed. What to do with the data, of course you can return stream result from the action that is used for streaming to the client browser. You can use docs examples from the Struts site or like in this example.
To navigate to the folder use parameters in GET request, that will be used to store current directory in session. You can change it if a user change the current directory from the view layer.
In my Grails application I need to create a file in current system in which I need to save information fetched from table in database. How to do this from within controller action? I don't have any idea of it.
I have created file as
File file=new File("file name.txt")
file.createNewFile();
then I have wrote values of MySQL database table fields in it as:
file<<patient.id
file<<patient.name
.
.
.
it stores data like continuous text but I want to have a .doc file in which data should get stored in table. I found Apache's POI for creating doc file but I am not getting how it works and how I should use it.
Not sure exactly what you want to store in a file but below is an example of how to easly write a String to a file using Apache-commons-io Which should be included in grails
import org.apache.commons.io.FileUtils;
class SomeController{
def writeToFile = {
def data = getSomeStringData();
def fileStore = new File("./path/to/files/ControllerOutput_${new Date()}.txt");
fileStore.createNewFile();
FileUtils.writeStringToFile(fileStore, data);
println("your file was created # {fileStore.absolutePath} and is ${fileStore.length()} bytes");
}
}
Does this help? If not, you need to explain exactly what your looking for.
This is a comment to Michael's answer (unfortunately I still don't have the reputation to reply on answers).
If you're struggling around the problem how to specifiy the relative path from within your controller's context, this might help you:
So if you have following folder you want to read/write files from/into"..
/myproject/web-app/temp/
you can access the file like this:
import org.codehaus.groovy.grails.commons.ApplicationHolder as AH
// getResource references to the web-app folder as root folder
Resource resource = AH.getApplication().getParentContext().getResource("/temp/myfile.txt)
I'd like to use GAE to allow a few users to upload files and later retrieve them. Files will be relatively small (a few hundred KB), so just storing stuff as a blob should work. I haven't been able to find any examples of something like this. There are a few image uploading examples out there but I'd like to be able to store word documents, pdfs, tiffs, etc. Any ideas/pointers/links? Thanks!
The same logic used for image uploads apply for other archive types. To make the file downloadable, you add a Content-Disposition header so the user is prompted to download it. A webapp simple example:
class DownloadHandler(webapp.RequestHandler):
def get(self, file_id):
# Files is a model.
f = Files.get_by_id(file_id)
if not f:
return self.error(404)
# Set headers to prompt for download.
headers = self.response.headers
headers['Content-Type'] = f.content_type or 'application/octet-stream'
headers['Content-Disposition'] = 'attachment; filename="%s"' % f.filename
# Add the file contents to the response.
self.response.out.write(f.contents)
(untested code, but you get the idea :)
It sounds like you want to use the Blobstore API.
You don't mention if you are using Python or Java so here are links to both.
I use blobstore API that admits any file upload/download up to 50 MB.