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How to define two fields “unique” as couple
...ple:
class MyModel(models.Model):
field1 = models.CharField(max_length=50)
field2 = models.CharField(max_length=50)
class Meta:
unique_together = ('field1', 'field2',)
And in your case:
class Volume(models.Model):
id = models.AutoField(primary_key=True)
journal_id = models.Foreign...
Html5 data-* with asp.net mvc TextboxFor html attributes
...
answered Jan 30 '11 at 16:49
Darin DimitrovDarin Dimitrov
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Assign same value to multiple variables at once?
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250
$var_a = $var_b = $same_var = $var_d = $some_var = 'A';
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Add and remove multiple classes in jQuery
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edited Oct 3 '19 at 20:30
simhumileco
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ans...
How to test if list element exists?
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edited Oct 11 '11 at 3:01
answered Oct 10 '11 at 23:36
T...
Limits of Nat type in Shapeless
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+50
I will attempt one myself. I will gladly accept a better answer from Travis Brown or Miles Sabin.
Nat can currently not be used to re...
How to center a label text in WPF?
... bijubiju
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Join between tables in two different databases?
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edited Jun 20 '14 at 14:20
potashin
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Foreign Key to multiple tables
...yType
(
PartyTypeId tinyint primary key,
PartyTypeName varchar(10)
)
insert into dbo.PartyType
values(1, 'User'), (2, 'Group');
create table dbo.Party
(
PartyId int identity(1,1) primary key,
PartyTypeId tinyint references dbo.PartyType(PartyTypeId),
unique (PartyId, Pa...