I was thinking if I store a video or a movie and open that box will that video will be stored in my RAM or else it just load from ROM. I am a bit confused: Can anyone explain this to me?
I think you have misunderstood the concept of Database.
Any Database solution is to only store pure informational organized data. Not to store large files such as media, documents, or images.
On the contrary, storage need not be organized, all files can exist in one folder.
So, any database solution you use, always store Data Types.
In this case you can have a Data Model, which is also an essential thing in using a Database.
#HiveType(typeId: 0)
class Movie extends HiveObject {
#HiveField(0)
String name;
#HiveField(1)
int path;
}
Since Hive supports Dart objects, you don't have to convert toJson or any such for string the Data.
So when you have the file fetched from Storag, you can get the path using path_provider or from the File itself, and then Create a Object
File file = await // get the movie file using any means
final path = file.path
var box = await Hive.openBox('Movies');
var m = Movie()
..name = 'Batman Begins'
..path = path ;
box.add(m);
m.save();
Hope this clears your doubt.
Copy/save your video/media files in the Local File Storage and save file path in Hive Box.
Whenever you need get path from hive then get the file from local storage using that path.
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.
This my data that I want to store my pdf files in my public folders. Anyone can give me any idea?
I tried to foreach the data to get that file but it seems not working in my end. Anyone can help me?
To store files in your public folder you can use the public disk that's included in your application's filesystems configuration file, the default config will store files in storage/app/public.
To make these files accessible from the web though (which I'm assuming is what you want) you need to create a symbolic link from public/storage to storage/app/public.
To do that just run:
php artisan storage:link
Once you've done this you can use Laravel's storage facade to interact with the files in your public folder to save, retrieve and download them.
Store
use Illuminate\Support\Facades\Storage;
Storage::put('file.jpg', $contents);
Download
return Storage::download('file.jpg');
return Storage::download('file.jpg', $name, $headers);
Retrieve
$contents = Storage::get('file.jpg');
If you need to store user uploaded files to your public storage, you can do it like this:
$path = $request->file('yourUploadedPdf')->store('yourPdfsFolder');
Laravel's store method will generate a unique ID for the filename and the extension will be determined by the MIME type of the uploaded file. The store method also returns the path, including the generated filename, so you can store it in your DB if needed.
If you need to specify the filename then you can do this:
$path = $request->file('pdf')->storeAs(
'yourPdfsFolder', 'yourPdfFileName'
);
Just a note, I'm assuming you'll be having public as your default disk, if not, then you'll need to specify the disk you're using in these method / Storage facade calls.
And a further note, when using the public disk, everything - by default - gets stored under storage/app/public so anytime you're defining a folder to store your uploaded PDFs under, it'll be storage/app/public/yourFolder.
I'm making a dating sim as my first game and I want to use a JSON file to store all of my dialogue, sprites and B.G.M. kind of like a A.P.I; but the file I wrote won't appear in the godot filesystem section.
I can't get the file path without it, is there a way for it to appear or should I just give up.
Try using the File API and read the data into the variable. Like so:
var data ={}
var path = "res://data.json"
func _ready():
var jsonfile = File.new()
jsonfile.open(path, File.READ)
data = parse_json(jsonfile.get_as_text())
print(data)
pass
Also you can install JSON Editor asset from Godot marketplace - https://godotengine.org/asset-library/asset/656
I'm looking to store images for an application in an MSSQL database. (I understand that there is some debate about whether this or file system storage is better; that's another thread though.) I'm looking at doing something similar to http://forum.codecall.net/topic/40286-tutorial-storing-images-in-mysql-with-php/ but in CodeIgniter, something along the lines of:
foreach ($_FILES as $upload_name => $info) {
if ($info['name']) {
// Temporary file name stored on the server
$tmpName = $info['tmp_name'];
// Read the file
$fp = fopen($tmpName, 'r');
$data = fread($fp, filesize($tmpName));
fclose($fp);
//model code consolidated here for ease of question-asking
$db = $this->load->database();
$stmt = $db->insert('my_table', array('image' => $data));
}
}
My question is mostly along the lines of security. Basically is there any particular concerns I should have for sanitizing image binary data inserts versus other sorts of string data? I took out the addslashes() in the code from the site linked above because I know CI's active records do some sanitization on their own but I don't know if it is better to have it (or do some other prep work altogether).
If I understand your question correctly, you should not have to worry about it as long as you store the file_type (The file's Mime type) with it and fore the Mime type with the binary data. Then whenever you handle the data you make sure and use it with the proper Mime type so even if they upload a script of virus you can make sure it is only rendered as an image instead of letting your server or the browser handle it.
Other than this I do not think you will need to pull the upload into memory and try and scrub it.
In my Grails application I need to create a file in current system in which I need to save information fetched from table in database. How to do this from within controller action? I don't have any idea of it.
I have created file as
File file=new File("file name.txt")
file.createNewFile();
then I have wrote values of MySQL database table fields in it as:
file<<patient.id
file<<patient.name
.
.
.
it stores data like continuous text but I want to have a .doc file in which data should get stored in table. I found Apache's POI for creating doc file but I am not getting how it works and how I should use it.
Not sure exactly what you want to store in a file but below is an example of how to easly write a String to a file using Apache-commons-io Which should be included in grails
import org.apache.commons.io.FileUtils;
class SomeController{
def writeToFile = {
def data = getSomeStringData();
def fileStore = new File("./path/to/files/ControllerOutput_${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)