I'm using Amplify with flutter, I wanna write a query and limit the data being queried, I looked into the documentation https://docs.amplify.aws/lib/datastore/data-access/q/platform/flutter#pagination and found this code snippet:
List posts = await Amplify.DataStore.query(Post.classType,
pagination: new QueryPagination(page:0, limit:100));
But unlike the snippet I'm not able to invoke QueryPagination to feed data into page and limit attributes, I viewed the source of pagination attribute of query and found that QueryPagination class is defined but I don't know how to invoke it.
Issue image
Thank you for reading, please help me out
For anyone else having the same issue this should help you out: try importing manually:
import 'package:amplify_datastore_plugin_interface/amplify_datastore_plugin_interface.dart';, I found the solution here: https://github.com/aws-amplify/amplify-flutter/issues/500
I experienced a similar issue.
import
import 'package:amplify_datastore/amplify_datastore.dart';
or
import 'package:amplify_datastore_plugin_interface/amplify_datastore_plugin_interface.dart';
if the issue still persists, then restart your IDE. This was the solution that eventually worked for me.
Related
screenshotI'm following a tutorial to create a website using django. I keep getting this error when running the server.
path('page2',index.webpage2),
AttributeError: module 'website.index' has no attribute 'webpage2'. Did you mean: 'webpage1'?
Don't know what I'm missing, the tutorial ran the server without any problem. The only thing I noticed was that it also gave my a missing os error. I fixed this part.
Thank you for your help
You need to add two views correspoending to the url
def webpage2(request):
pass
def webpage3(request):
pass
I am trying to save an array of text containing category types for a hotel system which looks something like this ['category-1', category-2', category-3, category-4] . I am using category_type = ArrayField(models.CharField(max_length=200),null=True) in my models.py
The error i get is
malformed array literal: "" LINE 1: ..., '{category-1,
category-2}'::varchar(200)[], ''::varcha...
^ DETAIL: Array value must start with "{" or dimension information.
The error persist even after processing python list from ['category-1', category-2', category-3, category-4] to {category-1, category-2, category-3, category-4}.
I have gone through postgresql documentation and have found very limited help,
https://pganalyze.com/docs/log-insights/app-errors/U114 this is something similar posted to what i am facing problem with.
Could someone please tell me what am i doing wrong? Any help would be appreciated.
EDIT:
Following is in my View.py
hotel_category=categoryTable(category_type=categorytype)
hotel_category.save()
and i am using categorytype=request.POST.getlist('category-type') in my Views.py to get it from the POST request after user submits the form. This returns a Python list that i have mentioned above, i have manipulated this list to match PostgreSQL ArrayField with '{','}' but i still have this error. If there is anything else you would like me to add, please let me know. :)
This is an update/answer to my question for anyone who faces this issue in the future. After struggling to find help from different resources, i decided to use JSON string to store my python list.
I am using :
categorytype = json.dumps(request.POST.getlist('category-type'))
to encode and using JSONDecoder() to fetch from database and decode. I have no idea how would this impact my further development but for now it seems a decent approach since personally i think ArrayFields are not well supported and documented in Django.
I will keep this post updated as i progress further on how this approach has impacted my development.
Have a nice day.
I want to allow my users to upload a CSV of contact data that will populate a a model called contacts. I have used django-csv-importer and this seems to work ok. However, I would like to use maybe something like celery so that users can upload and just forget about waiting ( at the moment it can take 5 minutes).
Are they any projects that do what django-csv-importer does but with celery integration part? If so could someone give me any example if there is a better way?
Many thanks.
Happily I've worked with the author of django-csv-importer, and can report there's a newer version in the form of django-adaptors (https://github.com/anthony-tresontani/django-adaptors), it's the same project but renamed, so it might have some new stuff.
As for your specific question, joshua's answer is correct. But if you want a ridiculously rich implementation complete with audit trails, take a look at this: http://codeinthehole.com/writing/use-models-for-uploads/
in tasks.py
from celery.task import task
#task
def import_csv(filename):
my_csv_list = MyCsvModel.import_data(data = open(filename))
...
Then just call import_csv.delay(filename) in your view.
I am working on a project to expand a testing suite that my company uses. One of this things that was asked of me was to link the website to our Github source for code so that the dev team could continue tracking the issues there instead of trying to look in two places. I was able to do this but the problem is that every time the a bug is reported an issue is opened.
I want to add a field to my Django model that tracks an Issue object (from the github3.py wrapper) that is sent to Github. I want to use this to check if an Issue has already been created in Github by that instance of the BugReport and if it has been created, edit the Issue instead of creating another issue in Github that is a duplicate. Does Django have a something that can handle this sort of reference?
I am using Django 1.3.1 and Python 2.7.1
EDIT
I was able to figure my specific problem out using esauro's suggestions. However, as mkoistinen said, If this problem came up in a program where the work-around was not as easy as this one was, should an object reference be created like I had originally asked about or is that bad practice? and if it is okay to make an object reference like that, how would you do it with the Django models?
I'm the creator of github3.py.
If you want to get the issue itself via a number, there are a couple different ways to do this. I'm not sure how you're interacting with the API but you can do:
import github3
i = githbu3.issue('repo_owner', 'repo_name', issue_number)
or
import github3
r = github3.repository('repo_owner', 'repo_name')
i = r.issue(issue_number)
or
import github3
g = github3.login(client_key='client_key', client_secret='client_secret')
i = g.issue('repo_owner', 'repo_name', issue_number)
# or
r = g.repository('repo_owner', 'repo_name')
i = r.issue(issue_number)
otherwise if you're looking for something that's in an issue without knowing the number:
import github3
r = github3.repository('repo_owner', 'repo_name')
for i in r.iter_issues():
if 'text to search for' in i.body_text:
i.edit('...')
We are facing issues of javascript getting embedded into message body,
following is the code snippet of the javascript,
} {*\htmltag241 var
DanaShimData="var DSJsFuncs =
,null,,,,[{nm:\"Refresh\",lcnm:\"refresh\",flg:0xb},{nm:\
\"Install\",flg:0xf},{nm:\"writeln\",flg:0x3f},{nm:\
"GotoURL\
\",flg:0xe},{nm:\"AddRoot\",lcnm:\"addroot\",flg:0xb},{nm:\
\"LoadURL\",lcnm:\"loadurl\",flg:0xb},{nm:\"addRule\
",flg:0xf},
{nm:\"postURL\",lcnm:\"posturl\",flg:0x12},{nm:\
"replace\ \",flg:0x12f},],[{
Could anyone please let us know if you have observed such occurances /
findings.
Any helps appreciated.
Thanks,
Sudipta Ghosh
Try to use HTMLCodeFormat() or HTMLEditFormat().
See docs.
There is a project called 'AntiSammy' (http://www.antisamy.net/) which uses files to combat XSS attacks that are provided by big sites like Slashdot and eBay. You may want to look at extracting the AntiSammy code to help you.
Here is a post by Peter Freitag on using AntiSammy without ColdBox.
http://www.petefreitag.com/item/760.cfm
Here are the docs for the ColdBox Framework:
http://wiki.coldbox.org/wiki/Plugins:AntiSamy.cfm
Also make sure you use cfqueryparams, captchas or some sort of session authentication form posts.