I have a project that is my first serious dive into Mongoid.
I saw a tip to use the following command:
Parent.where('childrens._id' => Moped::BSON::ObjectId(params[:id])).first
But this doesn't work. Error message was:
NameError: uninitialized constant Moped::BSON
I found that BSON is no longer included, so I added it to my Gemfile, as well as Moped. Then, I did another fix I found (placing Moped::BSON=BSON in application.rb).
This still didn't work, but the error changed to:
NoMethodError: undefined method `ObjectId' for BSON:Module
So I am assuming that this method got deprecated or something. Does anyone have any other tips?
Just to be clear, I am finding myself in the situation where I want to sort embedded documents using jquery-sortable. This requires me to update them in the database, but the serialize from that doesn't include the parent document in the hash. So I figured I'd try to get it on the back end using an ID from the embedded document. That is why I need it.
Thanks again for any help you can provide.
Try simply:
Parent.where('childrens._id' => params[:id]).first
I have solved the question though this won't be of much help to people in the future. The requirements have changed and now I am using human-readable strings as IDs to assist in friendly URLs and some other stuff.
Therefore, I don't have any issues with ObjectIds. Cortex's solution should (from what I have read) work for dealing with ObjectIds but I cannot verify it now.
Related
I don't have a lot of experience in Django and I am a fairly green developer. When I run the localhost I keep getting a Internal Error. I have tried most of the solutions to similar problems here and none of them works. Can anyone help me? The code is not mine so I don't want to alter it as such either.
Here is a picture of the errors I keep getting:
The only thing you can do without altering the code is to enter the value "shop_all_art" in the HomePage table in the database.
Do not share code via images. You should also share the related code.
Your stacktrace clearly says, that Python is not able to access first element of HomePage.objects.filter(value='shop_all_art') in file bidgala/bidgala/pages/views.py. all_art_img is most probably empty.
Looks like all_art_img is empty.
you should check if a Query has any elements before with a method such as
if all_art_img.exists():
all_art_img[0]
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'm working on a php based site and integrating some facebook sdk into it to get some basic user information. One thing I've been running into is, when I make a request to the graph, how do I know if I should be using getGraphObject or getGraphEdge? I'm not seeing anything intuitive yet to tell me that.
I'm running the php-sdk4 -> version 5
Here's one example that I ran into last night..
$response = $fb->get('/me/friends', $fbToken);
$fbfriends = $response->getGraphEdge()->asArray();
In the documentation, if you look at the php example, they use getGraphObject. But when I use it, I get an error telling me I should probably use the Edge. There are a lot of "get" functions, but I don't see anything that tells me how to know what to use. getGraphObject, getGraphEdge, getGraphUser, etc. I'd love some insight into this one, because it's been a guessing game for me.
Basicly, when:
Getting /{node-id}, you should use getGraphNode() (getGraphObject() is deprecated)
Getting /{node-id-with-known-type}, you should use getGraph{Type}().
For example, getting /me then use getGraphUser(), getting /{event-id} then use getGraphEvent()
Getting /{node-id}/{edge-name}, you should use getGraphEdge() (getGraphList() is deprecated)
Getting /{node-id}/{edge-name-with-children-known-type}, you should use getGraphEdge({children-type-class}).
For example, getting /me/albums then use getGraphEdge('GraphAlbum')
Nodes class name are in Facebook\GraphNodes namespace.
Well, I've configured the database.php file, added the 'encoding'=>'utf8' option.
also added the $this->charset('utf8') to my view.
Now, when I use the find('list') and echo its content I get those known question-marks. But, when I use the find('all) method, the data is delivered correctly.
And my questions are:
Why?
Who is to blame?
How to solve ?(I really prefer the list way..)
Should I drink more coffee?
can you try $this->find('all') and then use set to extract the values, like Set::extract('/Post/title', $posts); and print it out. if the find all was good and the set::extract is bad there could be a bug. If it works like normal then there is something weird as that is what the core does.
The goal is to make users be more specific when reporting a bug.
Ususally I get a messy report "It doesn't work, please help ASAP!" from a user, so I keep asking the same questions each time -- "The why, the who-what-when, the where, and the how..."
Instead, I want to set a template for a new issue, something like this:
What page did you go? What login did you use?
What did you see?
What did you expect to see?
Why do you think this is a bug?
or whatever.
Is it possible?
This plugin would be very helpful, in your case,
Issue Templates- http://www.redmine.org/plugins/issue_templates
here is a patch for templating issue descriptions. anything beyond that is still underway, and is relevant to the issue mentioned above.
http://www.redmine.org/issues/2931
The link below says that you can for the last year or so:
http://www.redmine.org/issues/1138
But I haven't yet found a description of how this functionality is used. I guess I'll have to slog through some code to find out.
Maybe a possible workaround is to have an issue to use as a template.
Create an issue like this:
name: Bug template
description:
What page did you go?
What login did you use?
What did you see?
What did you expect to see?
Why do you think this is a bug?
Then you can duplicate it each time you need a real issue.
The limit is with issues with subtasks. If you duplicate the parent issue you don't get the subtasks duplicated as well.