querylist | conditional soup when dealing with complicated lists | SQL Database library
kandi X-RAY | querylist Summary
kandi X-RAY | querylist Summary
Sick of for loop + conditional soup when dealing with complicated lists? Querylist is here to help. This package provides a data structure called a QueryList, an extension of Python's built in list data type that adds django ORM-eseque filtering, exclusion, and get methods. QueryLists allow developers to easily query and retrieve data from complex lists without the need for unnecessarily verbose iteration and selection cruft. The package also provides BetterDict, a backwards-compatible wrapper for dictionaries that enables dot lookups and assignment for key values. Take a look at the complete documentation for more information.
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Top functions reviewed by kandi - BETA
- Get an element from the list .
- Returns a QueryList filtered with the given criteria .
- Exclude elements from the query .
- Look up the given lookup string .
- Parse a lookup chain .
- Resolve a lookup chain .
- Convert attr to BetterDict
- Return the DictLookup object .
- Return the value of the attribute .
- Return the command line arguments .
querylist Key Features
querylist Examples and Code Snippets
Lines of Code : 11License : Strong Copyleft (CC BY-SA 4.0)
Copydef get_querylist(self):
helper = UserTypeHelper(self.request, path=False)
if helper.user_type == 'F':
querylist = [{'queryset': Faculty.objects.filter(department=self.request.user.faculty.department), 'serializer_class': Fquery = 'Dynamics Research word ok'
indexDict = {"Dynamics": ["a","b","c"], 'Research': ["a","b","g"], "other": ["j","k"]}
results = None
for word in query.split():
if word in indexDict:
if results is None:
results@nb.njit('uint64[::1](bool_[::1])')
def toPackedArray(cond):
n = len(cond)
res = np.empty((n+63)//64, dtype=np.uint64)
for i in range(n//64):
tmp = np.uint64(0)
for j in range(64):
tmp |= nb.types.uresponse = SetsIndividualData.as_view()(request)
print(response)
set = models.ForeignKey(Set, related_name="cards", on_delete=models.CASCADE)
cards = CardSerializers(many=True, read_only=True)
followers = [f.pk for f in Profile.objects.filter(followers__includes=props)]
from itertools import product
cutsequencequery = "GAANNNNTTC"
nseq = ["A", "C", "G", "T"]
size = cutsequencequery.count('N')
possibilities = product(*[nseq for i in range(size)])
# = ('A', 'A', 'A', 'A'), ... , ('T', 'T', 'T', 'T')
# def seperate_dicts(dicts):
dict_list = []
keys = list(dicts.keys())
for key in keys:
new_dict = {}
new_dict[key] = dicts[key]
dict_list.append(new_dict)
new_dict = {}
return dict_list
def get_attribs(dict_list):
from collections import Counter
listt = [["a","abc","zzz","xxx","abc","abc"],["yyy","ggg","abc","cccc"]]
queryList = ["abc","cccc","abc","yyy"]
OutputList = [len(list((Counter(x) & Counter(queryList)).elements())) for x in listt]
# [2,SQL = 'INSERT INTO ({}) VALUES (%s,%s,%s,%s,%s,%s)'.format(','.join(columnns))
db.Pcursor().execute(SQL, value1, value2, value3)
Community Discussions
Trending Discussions on querylist
QUESTION
I have a model as below which is hierarchical Group The group has either a parent group or none
...ANSWER
Answered 2021-Jun-14 at 13:48You can count the direct children with:
QUESTION
I have created a Django REST Framework endpoint that returns all the data I need for my page. I am trying to call this endpoint in one of my views and pass the response to the html template as part of the render.
when I print(response) it returns . All nothing is returned when I use {{ response.name }} in the html template. What am I missing here?
urls.py
...ANSWER
Answered 2021-Jun-13 at 12:13response = SetsIndividualData.as_view()(request)
print(response)
QUESTION
I have two models of sets, and cards. Theses models have one to many relationship where there are many cards in a single set. These model are join by a foreign key - each card has set_id which is equal to the id of the set. These IDs are UUID.
I am trying to create a serializer using Django REST Framework where I return the details of the set, as well as including all the cards that are part of the set.
error
...ANSWER
Answered 2021-Jun-12 at 08:30There are a few mistakes in your code.
models.py:
In the Card model, the related_name of the FK should be lowercase as per below:
QUESTION
If I add a content children to my component
...ANSWER
Answered 2021-Jun-07 at 09:17It appears the RouterLink directive utilizes two separate types internally.
RouterLink and RouterLinkWithHref
routerLink directly in component
If we want to count the routerLinks directly in the component, and expect no projected links, then we must use @ViewChildren() rather than @ContentChildren().
QUESTION
I do smooth full page scrolling with the mouse wheel.
But scrollIntoView function doesn't work inside @HostListener('wheel', ['$event']).
In app.component.html file:
...ANSWER
Answered 2021-May-27 at 20:54The @HostListener is working normally.
The only thing that making the awkward scrolling effect is the css.
The 1st thing is to wrap the button and content in a parent div with 100vh
The 2nd thing is make the content position relative to its original position
QUESTION
I'm using a QueryList
...ANSWER
Answered 2021-May-04 at 14:06First of all this line switchMap(() => ...this.sortableHeaders.map(f => f.sort$)), probably isn't doing what you want it to do. You're returning an array from switchMap projection function so switchMap will just iterate it and return each item of the array as is. This is because an array is so-called "observable like" object. In other words, switchMap will never subscribe to any of the sort$ Observables because you're returning them basically as [sort$, sort$, sort$, ...].
Instead you'll need to wrap it with another Observable that will subscribe to all of them:
QUESTION
I am trying to create the following view:
...ANSWER
Answered 2021-Apr-30 at 05:44Profile indeed does not have a filter method unless you define it yourself. What you need really is the objects Manager. After that, you can do whatever you want with the data.
According to the documentation you need to return a list of dictionaries from your get_querylist method, not a HttpResponse. That would be your querylist variable.
To sort out the filter thing and to get a list of IDs, try this:
QUESTION
ANSWER
Answered 2021-Apr-26 at 14:16Have you looked at Filtering against query paramters and Django Filter Backend in DRF docs ? For one thing, you don't need a sort_by param because DRF provides OrderingFilter built-in.
I'd suggest using django-rest-framework-filters. Yes, you will have to read a lot of docs and understand internals but rolling your own implementation of parsing query parameters where you are basically passing user's input without sensitization to build queryset is a very big security red flag. Not to mention, it's also error prone and does not follow the Don't Repeat Yourself (DRY) principle which django is built upon.
QUESTION
The purpose of the piece of code added at the bottom is to react to a change in the ContentChildren, which are directives linked to elements. It is taken from a book and there is the following line:
ANSWER
Answered 2021-Apr-19 at 22:44There is probably a reason for that. setTimeOut is an asynchronous function, which will be executed when the synchronous functions finish. Some time ago I used a library that rendered components asynchronously, but it had a bug and put a component on the right. So I wanted to change that with a style from typescript, but doing so did not see any changes. Why? Because my code was synchronous, the library positioned my component on the right after I placed it on the left. The simplest solution was to put the style in a setTimeOut of 10. And it worked
QUESTION
I have a problem comparing the content of a list of QueryList. I like to distinguish some elements to build a closing logic for a menu.
I have some buttons in a toolbar, these buttons are Angular Material buttons of type mat-button. The buttons are assigned by #navButton to get them in the QueryList. The problem is, the type of the clicked button (nav-button) from the event listener is different then the types in the QueryList. If I use a normal button instead of Material mat-button my code runs as expected.
What is the reason to have different types in QueryList than the event listener? What can I do?
I posted my code on GitHub: https://github.com/Christoph1972/AngularMaterialHeaderTemplate
Please can you have a look into it? The important lines of code are in main-header.component.ts and main-header.component.html
Kind Regards Christoph
...ANSWER
Answered 2021-Apr-05 at 08:32if you want to get ElementRefs of the element provide it in read config field.
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