here is my model
class gameUserTrophyInfo(models.Model):
user = models.ForeignKey(userInfo)
trophy = models.ForeignKey(gameTrophyInfo)
date = models.DateTimeField()
i want a query that returns to me: for all users, return the most recent trophy.
Example:
my db:
date (Day - Month - Year )
| user | trophy | date |
| 1 | 1 | 10-10-10 10:00:00 |
| 1 | 2 | 10-10-10 09:00:00 |
| 2 | 1 | 10-10-10 01:00:00 |
| 2 | 2 | 11-10-10 01:00:00 |
| 3 | 10 | 20-10-10 01:00:00 |
returns:
| user | trophy | date |
| 1 | 1 | 10-10-10 10:00:00 |
| 2 | 2 | 11-10-10 01:00:00 |
| 3 | 10 | 20-10-10 01:00:00 |
how can i do that ?
thanks !
You need two queries:
users = User.objects.annotate(max_trophy_info_id=Max('gameusertrophyinfo__id'))
ids = [user.max_trophy_info_id for user in users]
trophy_infos = gameUserTrophyInfo.objects.filter(id__in = ids)
Related
I would like to know how could I get the Sum of all working days for specific month but in the table starting each month's Sum over again.
This is my DateTable Now with this query for Work Days Sum:
Work Days Sum =
CALCULATE (
SUM ( 'DateTable'[Is working Day] ),
ALL ( 'DateTable' ),
'DateTable'[Date] <= EARLIER ( 'DateTable'[Date] )
)
Date | Month Order | Is working day | Work Days Sum |
January - 21 331
2022/01/01 | 1 | 0 | |
2022/01/02 | 1 | 0 | |
2022/01/03 | 1 | 1 | 1 |
2022/01/04 | 1 | 1 | 2 |
2022/01/05 | 1 | 1 | 3 |
2022/01/06 | 1 | 1 | 4 |
.....
2022/01/27 | 1 | 1 | 19 |
2022/01/28 | 1 | 1 | 20 |
2022/01/29 | 1 | 0 | 20 |
2022/01/30 | 1 | 0 | 20 |
2022/01/31 | 1 | 1 | 21 |
February 20 890
2022/02/01 | 2 | 1 | 22 |
2022/02/02 | 2 | 1 | 23 |
2022/02/03 | 2 | 1 | 24 |
2022/02/04 | 2 | 1 | 25 |
|
|
V
Date | Month Order | Is working day | Work Days Sum |
January - 21 21
2022/01/01 | 1 | 0 | |
2022/01/02 | 1 | 0 | |
2022/01/03 | 1 | 1 | 1 |
2022/01/04 | 1 | 1 | 2 |
2022/01/05 | 1 | 1 | 3 |
2022/01/06 | 1 | 1 | 4 |
.....
2022/01/27 | 1 | 1 | 19 |
2022/01/28 | 1 | 1 | 20 |
2022/01/29 | 1 | 0 | 20 |
2022/01/30 | 1 | 0 | 20 |
2022/01/31 | 1 | 1 | 21 |
February 20 41
2022/02/01 | 2 | 1 | 1 |
2022/02/02 | 2 | 1 | 2 |
2022/02/03 | 2 | 1 | 3 |
2022/02/04 | 2 | 1 | 4 |
2022/02/05 | 2 | 0 | 4 |
.....
Any idea on how I can change my dax query to achieve output of second table below the down arrow would be much appreciated.
I have 2 tables. Table A is
+--+------------------+
| ID | Fastivalname |
+--+------------------+
| 1 | 2020Xmas |
+--+------------------+
| 2 | 2019Xmas |
+--+------------------+
| 3 | 2020Thanksgiving |
+--+------------------+
| 4 | 2019Thanksgiving |
+--+—————————+
Fastival isForeignKey for table B,and table B is
+--+------------------+ ------------------+------------------+
| ID | fastival_name_id | money | useofmoney |
+--+------------------+ ------------------+------------------+
| 1 | 1 | 100 | game
+--+------------------+ ------------------+------------------+
| 2 | 1 | 20 | clothes
+--+------------------+ ------------------+------------------+
| 3 | 3 | 50 | food
+--+------------------+ ------------------+------------------+
| 4 | 4 | 10 | game
+--+------------------+ ------------------+—————————+
| 1 | 2 | 30 | food
+--+------------------+ ------------------+------------------+
| 2 | 3 | 15 | game
+--+------------------+ ------------------+—————————+
and models.py is:
class TableA(models.Model):
Fastivalname = models.CharField(max_length=50)
class TableB(models.Model):
fastival_name = models.ForeignKey(to=TableA, related_name="TableA_Fastival_name", on_delete=models.CASCADE)
money = models.IntegerField(default=0)
useofmoney = models.CharField(max_length=200, null=True, blank=True)
Please someone tell me how to get the "sum of money in game of 2020xxx" in Django2?
I tried context["money"] = TableB.objects.filter(fastival_id=TableA.objects.filter(Fastivalname__startswith=2020.values('id')[0]['id']).filter(useofmoney="game").aggregate(Sum('money'))['money']. But that response "None"...
You can do this with a single query on TableB and use the double-underscore syntax to perform joins/filters on related models/tables
TableB.objects.filter(
fastival__Fastival__startswith='2020',
useofmoney='game'
).aggregate(total=Sum('money'))['total']
Could you please help me to solve the problem as I am totally new to DAX and English is not my first language so I am struggling to even find the correct question.
Here's the problem.
I have two tables:
start_balance
+------+---------------+
| Type | Start balance |
+------+---------------+
| A | 0 |
| B | 10 |
+------+---------------+
in_out
+------+-------+------+----+-----+
| Year | Month | Type | In | Out |
+------+-------+------+----+-----+
| 2020 | 1 | A | 20 | 20 |
| 2020 | 1 | A | 0 | 10 |
| 2020 | 2 | B | 20 | 0 |
| 2020 | 2 | B | 20 | 10 |
+------+-------+------+----+-----+
I'd like to get the result as follows:
Unfiltered:
+------+-------+------+---------+----+-----+------+
| Year | Month | Type | Balance | In | Out | Left |
+------+-------+------+---------+----+-----+------+
| 2020 | 1 | A | 0 | 20 | 20 | 0 |
| 2020 | 1 | B | 10 | 20 | 10 | 20 |
| 2020 | 2 | A | 0 | 20 | 10 | 10 |
| 2020 | 2 | B | 20 | 20 | 10 | 30 |
+------+-------+------+---------+----+-----+------+
Filtered (for example year/month 2020/2):
+------+-------+------+---------+----+-----+------+
| Year | Month | Type | Balance | In | Out | Left |
+------+-------+------+---------+----+-----+------+
| 2020 | 2 | A | 0 | 20 | 10 | 10 |
| 2020 | 2 | B | 20 | 20 | 10 | 30 |
+------+-------+------+---------+----+-----+------+
So while selecting a slicer for the year/month it should calculate balance before selected year/month and then show selected year/month values.
Edit: corrected start_balance table.
Is the sample data correct?
A -> the starting balance is 10, but in your unfiltered table example, it is 0.
Do you have any relationship between these tables?
Does opening balance always apply to the current year? What if 2021 appears in the in_out table? How do you know when the start balance started?
example without starting balance
If you want to show value breaking given filter you should use statement ALL or REMOVEFILTERS function (in Analysis Services 2019 and in Power BI since October 2019).
calculate(sum([in]) - sum([out]), all('in_out'[Year],'in_out'[Month]))
More helpful information:
https://www.sqlbi.com/articles/managing-all-functions-in-dax-all-allselected-allnoblankrow-allexcept/
i have database scheme like this.
# periode
+------+--------------+--------------+
| id | from | to |
+------+--------------+--------------+
| 1 | 2018-04-12 | 2018-05-11 |
| 2 | 2018-05-12 | 2018-06-11 |
+------+--------------+--------------+
# foo
+------+---------+
| id | name |
+------+---------+
| 1 | John |
| 2 | Doe |
| 3 | Trodi |
| 4 | son |
| 5 | Alex |
+------+---------+
#bar
+------+---------------+--------------+
| id | employee_id | periode_id |
+------+---------------+--------------+
| 1 | 1 |1 |
| 2 | 2 |1 |
| 3 | 1 |2 |
| 4 | 3 |1 |
+------+---------------+--------------+
I need to show employee that not in salary.
for now I do like this
queryset=Bar.objects.all().filter(periode_id=1)
result=Foo.objects.exclude(id=queryset)
but its fail, how do filter employee list not in salary?...
Well here you basically want the foos such that there is no period_id=1 in the Bar table.
We can let this work with:
ex = Bar.objects.all().filter(periode_id=1).values_list('employee_id', flat=True)
result=Foo.objects.exclude(id__in=ex)
I have a table like this in DJango?
| id | user_id | name | source | remaining | start_date | time_remaining | size |
+----+---------+---------------+----------------+-----------+----------------------------+----------------+------+
| 1 | 1 | ok.txt | ngs.pradhi.com | 20 | February 05, 2013, 08:01AM | 1 | 4 MB |
| 2 | 1 | NC_008253.fna | ngs.pradhi.com | 20 | February 05, 2013, 08:02AM | 1 | 4 MB |
| 3 | 1 | test.data | ngs.pradhi.com | 0 | February 05, 2013, 08:21AM | 1 | 4 MB
I want to retrieve the data where user_id = request.user.id and remaining < 100.
Tried using:
Queue.objects.filter(user_id=request.user.id, remaining < 100) But didn't work.
Queue.objects.filter(user_id=request.user.id, remaining__lt=100).exclude(remaining=0)
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