im new in ruby, here u can find my code: https://bitbucket.org/Messeir/reddit
I used carrierwave gem for uploading photos. Unfortunatelly i dont know how to show uploaded photo on main site near to submited links?
Here are a few thoughts.
The photo is uploaded. We're assuming that it'll land on the file system of your server somewhere.
After you receive the file upload, as a prototype, try to move the file in the Rails root "public/images" directory. On your page, you could try an image tag as such:
If that works, you can tell at least that your "file-upload-save-to-disk" operation is working.
In a second phase, save the file somewhere else, say in a /data/images directory. Create a controller that will respond to a /mycontroller/myimage?... url, an in that method, respond with the image content.
That's pretty rough but it's a start. Let me know how it goes.
Related
I am working on a rails engine that uploads a excel file, validates it and if there is no error than it will save it to database.
Now when ever a user mounts the engine and than go to the route provided by engine. He will have a form to upload the excel file. There are two buttons on page, i.e, upload and validate.
Once a user choose the file and when he click on upload i want that file only gets uploaded and don't get saved in db. Once i get the message the file is uploaded successfully, than i will validate the file. If it is a valid excel file with valid data than it will be saved into db. Now i am not getting how to go about it. I have seen this Railscasts video on uploading csv and excel file but here he is performing validation and save operation with import action but i want validation and save operation when user clicks on validate action. This Questions seems similar to my problem but i am not getting how do i access that uploaded file. I don't want that file to be saved in database. I mean when a user click on upload button that file gets only uploaded not saved. Than i will validate that file and save it's content to db.
This may seem very easy and simple questions for some experts but i am very new to rails and i am not sure how to go about it.
Someone please help me with a sample code, so that i can understand the workflow. Also note that both upload and validate actions are on same page. So when a file gets uploaded it needs to be stored somewhere temporarily, this is the first problem i am facing. I can do all the task if someone can tell me workflow with a sample code about uploading excel file. I am only having problem here that as both upload and validate action are on same page, so after upload request it needs to be on that page so that i can validate that file.
Any help would be appreciated, I am very beginner at rails and really confused here.
Two options:
Write code to upload the file and save to DB with a validated column set to false. Then the 'validate' button will locate the unvalidated file, validate it and set validated to true. You could have a periodic job deleting unvalidated files of a certain age. If you do this, use a helper gem like Paperclip.
Forego file upload frameworks and just manually save uploaded files to Tempfile.new 'spreadsheet'. This guide takes you through how to do that. Save that filename to session and use it to validate at a later point. When you're finally ready to persist to DB, again, consider using a helper gem.
I am starting up with rails and was going thru the sharebox-tutorial.
Now is it possible with paperclip to first preview the uploaded files and then choose the download link, rather than the file directly being downloaded when link is clicked, as in the tutorial and elsewhere in the internet.
Also, what will be the method to generate a share link unique to every friend email.
While researching, i also found out that files should be uploaded in some other folder but public.
how is it different from storing the files in public folder with the url hashed. the hash url is still accessible when user is logged out.
UPDATE
the preview i am referring to should be after uploading.
I have used paperclip to allow me to upload files to a rails application. Everything works and the file is uploaded, but instead of seeing a link to the actual file itself I see the location of it within the systems folder of the rails project.
I'm guessing its either a routing issue or I need to create a link to the file in question. However, I would like to hide the location of the file itself, and only see the link displayed.
I would be very grateful if someone could point me in the right direction here.
You want to hide the actual path of the file in the server, right?
You can achieve that using send_file (http://api.rubyonrails.org/classes/ActionController/DataStreaming.html#method-i-send_file) in a normal controller.
You will still need to do something to protect the download using the real path.
I need to save a file from iPhone/iPad to SharePoint site. When I tried to upload content with the same name of one document that actually there, it succeeds and even file size is shown as that of the new one. But content remains as the initial file as itself.
Do anyone have a solution for this?. Please let me know if something is there.
I am a complete beginner in Flash & Actionscript.
My pet project is this: To provide a www.imageshack.com like service where people could upload single images and later anyone can view it using the generated url.
So far I have gotten to upload an image using Flash and store it in a directory.
http://pixels.guygar.com/
You can check the uploaded image at:
http://pixels.guygar.com/warehouse/
The issue being, I was under the impression when the PHP file is called to store the image in the folder /warehouse the browser would automatically navigate to:
http://pixels.guygar.com/upload.php
Where I can process the image i.e. generate a unique file name and provide the user with a unique URL to later access the resource.
What is happening is the image gets uploaded by the PHP script but the browser page still stays the same page even when providing a new url in the PHP script.
So the question is how do I go about so that a new URL (image resource linked) is passed back to the flash so that onComplete is called I can navigate to image that was just loaded? Or other ways of doing such?
I welcome your perspectives on this issue and thank you for your guidance.
i would store all values that you need later on in a session on the server (don't forget to pass the sessionID to the upload-script via GET).
at the end of the PHP script you just return "ok" (or "ko" if sth went wrong) to flash and then (in the callback/listener) call/load a second PHP-script that's doing the rest ... and returns you an URL to a thumbnail or whatever you want to do.
hope this points you in the right direction ...
http://help.adobe.com/en_US/FlashPlatform/reference/actionscript/3/flash/net/FileReference.html?filter_flash=cs5&filter_flashplayer=10.2&filter_air=2.6#event:uploadCompleteData
Shows how data can be returned to flash after an upload.