Trying to get Carrierwave multiple file uploads working. I'm following the documentation on the homepage. When I try to upload a file or multiple, I get an no implicit conversion of nil to string
That error is coming from this method in the Carrierwave gem found in uploaders/cache.rb
def workfile_path(for_file=original_filename)
File.join(CarrierWave.tmp_path, #cache_id, version_name.to_s, for_file)
end
The issue is that the original_file is nil. I've tried to trace the issue but can't find where the issue is really beginning. One thing that is odd is that I am following some source code from this repo
https://github.com/bobintornado/sample-gallery-app-with-carrierwave
The sample app is working and you can do multiple uploads. The difference though is that when cache! method is called the new_file is an Array where in sample app that's working it's Http::UploadedFile
Here's the cache method
def cache!(new_file = sanitized_file)
new_file = CarrierWave::SanitizedFile.new(new_file)
return if new_file.empty?
raise CarrierWave::FormNotMultipart if new_file.is_path? && ensure_multipart_form
self.cache_id = CarrierWave.generate_cache_id unless cache_id
#filename = new_file.filename
self.original_filename = new_file.filename
begin
# first, create a workfile on which we perform processings
if move_to_cache
#file = new_file.move_to(File.expand_path(workfile_path, root), permissions, directory_permissions)
else
#file = new_file.copy_to(File.expand_path(workfile_path, root), permissions, directory_permissions)
end
with_callbacks(:cache, #file) do
#file = cache_storage.cache!(#file)
end
ensure
FileUtils.rm_rf(workfile_path(''))
end
end
Here are my initial params
"coach"=>{"name"=>"ben", "title"=>"ceo", "description"=>"head dude",
"photos"=>[
#<ActionDispatch::Http::UploadedFile:0x007fc9a5235c78 #tempfile=#<Tempfile:/var/folders/sb/t6rry5j928l3sy96nkhy9f840000gn/T/RackMultipart20160113-67635-avg8ef.jpg>, #original_filename="benn-1.jpg", #content_type="image/jpeg", #headers="Content-Disposition: form-data; name=\"coach[photos][]\"; filename=\"benn-1.jpg\"\r\nContent-Type: image/jpeg\r\n">,
#<ActionDispatch::Http::UploadedFile:0x007fc9a5235c50 #tempfile=#<Tempfile:/var/folders/sb/t6rry5j928l3sy96nkhy9f840000gn/T/RackMultipart20160113-67635-r8bdxp.jpg>, #original_filename="benn-2.jpg", #content_type="image/jpeg", #headers="Content-Disposition: form-data; name=\"coach[photos][]\"; filename=\"benn-2.jpg\"\r\nContent-Type: image/jpeg\r\n">
]}
Sorry this isn't terribly helpful, but I burned my current working branch and started from the beginning and now everything is working. Not sure what I did differently. If you're running into the same issue I recommend starting over and following this tutorial:
Multiple-Images-Uploading-With-CarrierWave-and-PostgreSQL-Array
Related
I would like to create dynamic playlist with liquidesoap and icecast. I've just copied the tutorial from the liquidsoap website but unfortunately it does not work.
This is my code:
def get_next() =
result = list.hd(get_process_lines("/var/www/radiod/yii program-generator/next-track 1"))
# Create and return a request using this result
request.create(result)
end
# Create the source
s = request.dynamic(id="s", get_next)
# Output
source = output.icecast(%mp3, host="localhost", port=8000, mount="opera.mp3", password="asd123", s)
I get this error message when I run the check command:
Invalid value at line 9, char 20-37: That source is fallible.
So, the problem will be around this line:
s = request.dynamic(id="s", get_next)
Can you help me what could be the failure?
Thanking you in advance!
http://savonet.sourceforge.net/doc-svn/quick_start.html covers "That source is fallible." in detail. Might want to go through the whole page.
Language: Python 2.7
Hello all. I found a really helpful script here: Python to Slack Web Hook
that shows how to send messages to a Slack web hook.
import json
import requests
# Set the webhook_url to the one provided by Slack when you create the webhook at https://my.slack.com/services/new/incoming-webhook/
webhook_url = 'https://hooks.slack.com/services/T00000000/B00000000/XXXXXXXXXXXXXXXXXXXXXXXX'
slack_data = {"text": "<https://alert-system.com/alerts/1234|Click here> for details!"}
response = requests.post(
webhook_url, data=json.dumps(slack_data),
headers={'Content-Type': 'application/json'}
)
if response.status_code != 200:
raise ValueError(
'Request to slack returned an error %s, the response is:\n%s'
% (response.status_code, response.text)
)
It works flawlessly when I run .py file.
Now, I have a file that has many lines of messages that I want to send to Slack. I have it formatted correctly already in the file, no spaces etc.. It's just a matter of grabbing it and passing it so slack_data = line1 etc..
So, I modify the file with something like this:
with open('export.txt', 'r') as e:
for line in e:
slack_data = line
Now if I do a print slack_data right after that, the information returns on the screen exactly as it should be, so I'm thinking it's good. I haven't began to get it working for each line yet, because it's not even working on the first line.
I get an invalid payload 400 when I run it.
EDIT: Slack support said the what they were receiving has escape characters inserted into for some reason.
"{\"text\": \"<https://alert-system.com/alerts/1234|Click here> for details!"}\n"
Any direction or assistance is appreciated.
Thanks!!
Just posting as it might help somebody. For me the below snippet worked:
data = json.dumps(slack_data)
response = requests.post(
URL, json={"text": data},
headers={'Content-Type': 'application/json'}
)
As #Geo pointed out the final payload that we are going to send should have keyword "text", else it will fail.
Moreover, in post method I have to replace data= with json= else it kept throwing error for invalid payload with 400
Since I already had the data preformatted in the file as JSON already, it was just a matter of removing json.dumps out of the code.
OLD:
#response = requests.post(webhook_url, data=json.dumps(slack_data), headers={'Content-Type': 'application/json'})
NEW:
response = requests.post(webhook_url, data=slack_data, headers={'Content-Type': 'application/json'})
Once I did that, everything worked like a charm.
If you change the code to this:
with open('export.txt', 'r') as e:
slack_data = e.read()
do you still get the 400?
I am currently trying out a new gem called "gmail". I am trying to send a message with an attachment file however I seem to encounter this error everytime:
No such file or directory # rb_sysopen - /uploads/upload/avatar/4/filename.png
the line of code where I attach this image is noted below:
def send_message
params = message_params
u = Upload.create(avatar: params[:file])
u.save!
# puts "Upload: #{u.avatar}\nLocation: #{Rails.root.join(u.avatar.url)}"
email = #gmail.compose do
to "#{params[:to]}"
subject "#{params[:subject]}"
body "#{params[:message]}"
add_file "#{Rails.root.join(u.avatar.url)}"
end
email.deliver!
flash[:success] = 'Message sent!'
Upload.destroy_all
redirect_to root_path
end
Please help I've been stuck at this for hours now.
Apparently the path was lacking a bit...managed to solve it by changing the path to:
path = "#{Rails.root}" << "/public" << u.avatar.url
I looked at the various questions similar to mine, but I could not find anything a fix for my problem.
In my code, I want to serve a freshly generated excel file residing in my app directory in a folder named files
excelFile = ExcelCreator.ExcelCreator("test")
excelFile.create()
response = HttpResponse(content_type='application/vnd.ms-excel')
response['Content-Disposition'] = 'attachment; filename="test.xls"'
return response
So when I click on the button that run this part of the code, it sends to the user an empty file. By looking at my code, I can understand that behavior because I don't point to that file within my response...
I saw some people use the file wrapper (which I don't quite understand the use). So I did like that:
response = HttpResponse(FileWrapper(excelFile.file),content_type='application/vnd.ms-excel')
But then, I receive the error message from server : A server error occurred. Please contact the administrator.
Thanks for helping me in my Django quest, I'm getting better with all of your precious advices!
First, you need to understand how this works, you are getting an empty file because that is what you are doing, actually:
response = HttpResponse(content_type='application/vnd.ms-excel')
response['Content-Disposition'] = 'attachment; filename="test.xls"'
HttpResponse receives as first arg the content of the response, take a look to its contructor:
def __init__(self, content='', mimetype=None, status=None, content_type=None):
so you need to create the response with the content that you wish, is this case, with the content of your .xls file.
You can use any method to do that, just be sure the content is there.
Here a sample:
import StringIO
output = StringIO.StringIO()
# read your content and put it in output var
out_content = output.getvalue()
output.close()
response = HttpResponse(out_content, mimetype='application/vnd.ms-excel')
response['Content-Disposition'] = 'attachment; filename="test.xls"'
I would recommend you use:
python manage.py runserver
to run your application from the command line. From here you will see the console output of your application and any exceptions that are thrown as it runs. This may provide a quick resolution to your problem.
I'm trying to upload and parse json files using django. Everything works great up until the moment I need to parse the json. Then I get this error:
No JSON object could be decoded: line 1 column 0 (char 0)
Here's my code. (I'm following the instructions here, and overwriting the handle_uploaded_file method.)
def handle_uploaded_file(f, collection):
# assert False, [f.name, f.size, f.read()[:50]]
t = f.read()
for j in serializers.deserialize("json", t):
add_item_to_database(j)
The weird thing is that when I uncomment the "assert" line, I get this:
[u'myfile.json', 59478, '']
So it looks like my file is getting uploaded with the right size (I've verified this on the server), but the read command seems to be failing entirely.
Any ideas?
I've seen this before. Your file has length, but reading it doesn't. I'm wondering if it's been read previously... try this:
f.seek(0)
f.read()