Best Way to set min/max values in Django Model field
I'm trying to get a field called WipID in my model to have the following:
- Primary Key
- and to have numbers between 000000001 and 999999999
Basically I want the field to always have 9 numbers. I don't care about auto-increment or not.
I've tried a number variations, but right now I have this:
WipID = models.BigAutoField(primary_key=True, validators=[MinValueValidator(000000001), MaxValueValidator(999999999)])
I've tried BigIntegerField and PositiveIntegerfield and those haven't worked either.
What's the best way to accomplish this? Any help is greatly appreciated on this.
python django django-models
asked Nov 20 '18 at 15:14
DanDan
616
add a comment |
I'm trying to get a field called WipID in my model to have the following:
- Primary Key
- and to have numbers between 000000001 and 999999999
Basically I want the field to always have 9 numbers. I don't care about auto-increment or not.
I've tried a number variations, but right now I have this:
WipID = models.BigAutoField(primary_key=True, validators=[MinValueValidator(000000001), MaxValueValidator(999999999)])
I've tried BigIntegerField and PositiveIntegerfield and those haven't worked either.
What's the best way to accomplish this? Any help is greatly appreciated on this.
python django django-models
asked Nov 20 '18 at 15:14
DanDan
616
000000001 isn't a number, it's a string. The number is just 1.
– dirkgroten
Nov 20 '18 at 16:35
1
What's the point in saving "00000001" to the database? Just use 1 - 999999999 using what you have now (MinValueValidator(1) is correct way of doing it) and if you want to display it differently, write a custom@propertyon your model to display the field as string with prepending the 0s.
– dirkgroten
Nov 20 '18 at 16:37
The information that we are using this for requires 9 digits ID's. So if I have something with an ID number of 1 in the database, but I display it as 000000001, nobody is going to know to search for just "1". Is my thinking right on this or no?
– Dan
Nov 20 '18 at 16:49
add a comment |
I'm trying to get a field called WipID in my model to have the following:
- Primary Key
- and to have numbers between 000000001 and 999999999
Basically I want the field to always have 9 numbers. I don't care about auto-increment or not.
I've tried a number variations, but right now I have this:
WipID = models.BigAutoField(primary_key=True, validators=[MinValueValidator(000000001), MaxValueValidator(999999999)])
I've tried BigIntegerField and PositiveIntegerfield and those haven't worked either.
What's the best way to accomplish this? Any help is greatly appreciated on this.
python django django-models
asked Nov 20 '18 at 15:14
DanDan
616
I'm trying to get a field called WipID in my model to have the following:
- Primary Key
- and to have numbers between 000000001 and 999999999
Basically I want the field to always have 9 numbers. I don't care about auto-increment or not.
I've tried a number variations, but right now I have this:
WipID = models.BigAutoField(primary_key=True, validators=[MinValueValidator(000000001), MaxValueValidator(999999999)])
I've tried BigIntegerField and PositiveIntegerfield and those haven't worked either.
What's the best way to accomplish this? Any help is greatly appreciated on this.
python django django-models
python django django-models
asked Nov 20 '18 at 15:14
DanDan
616
asked Nov 20 '18 at 15:14
DanDan
616
asked Nov 20 '18 at 15:14
DanDan
616
asked Nov 20 '18 at 15:14
DanDan
616
asked Nov 20 '18 at 15:14
DanDan
616
616
000000001 isn't a number, it's a string. The number is just 1.
– dirkgroten
Nov 20 '18 at 16:35
1
What's the point in saving "00000001" to the database? Just use 1 - 999999999 using what you have now (MinValueValidator(1) is correct way of doing it) and if you want to display it differently, write a custom@propertyon your model to display the field as string with prepending the 0s.
– dirkgroten
Nov 20 '18 at 16:37
The information that we are using this for requires 9 digits ID's. So if I have something with an ID number of 1 in the database, but I display it as 000000001, nobody is going to know to search for just "1". Is my thinking right on this or no?
– Dan
Nov 20 '18 at 16:49
add a comment |
000000001 isn't a number, it's a string. The number is just 1.
– dirkgroten
Nov 20 '18 at 16:35
1
What's the point in saving "00000001" to the database? Just use 1 - 999999999 using what you have now (MinValueValidator(1) is correct way of doing it) and if you want to display it differently, write a custom@propertyon your model to display the field as string with prepending the 0s.
– dirkgroten
Nov 20 '18 at 16:37
The information that we are using this for requires 9 digits ID's. So if I have something with an ID number of 1 in the database, but I display it as 000000001, nobody is going to know to search for just "1". Is my thinking right on this or no?
– Dan
Nov 20 '18 at 16:49
000000001 isn't a number, it's a string. The number is just 1.
– dirkgroten
Nov 20 '18 at 16:35
000000001 isn't a number, it's a string. The number is just 1.
– dirkgroten
Nov 20 '18 at 16:35
1
1
What's the point in saving "00000001" to the database? Just use 1 - 999999999 using what you have now (MinValueValidator(1) is correct way of doing it) and if you want to display it differently, write a custom
@property on your model to display the field as string with prepending the 0s.– dirkgroten
Nov 20 '18 at 16:37
What's the point in saving "00000001" to the database? Just use 1 - 999999999 using what you have now (MinValueValidator(1) is correct way of doing it) and if you want to display it differently, write a custom
@property on your model to display the field as string with prepending the 0s.– dirkgroten
Nov 20 '18 at 16:37
The information that we are using this for requires 9 digits ID's. So if I have something with an ID number of 1 in the database, but I display it as 000000001, nobody is going to know to search for just "1". Is my thinking right on this or no?
– Dan
Nov 20 '18 at 16:49
The information that we are using this for requires 9 digits ID's. So if I have something with an ID number of 1 in the database, but I display it as 000000001, nobody is going to know to search for just "1". Is my thinking right on this or no?
– Dan
Nov 20 '18 at 16:49
add a comment |
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000000001 isn't a number, it's a string. The number is just 1.
– dirkgroten
Nov 20 '18 at 16:35
1
What's the point in saving "00000001" to the database? Just use 1 - 999999999 using what you have now (MinValueValidator(1) is correct way of doing it) and if you want to display it differently, write a custom
@propertyon your model to display the field as string with prepending the 0s.– dirkgroten
Nov 20 '18 at 16:37
The information that we are using this for requires 9 digits ID's. So if I have something with an ID number of 1 in the database, but I display it as 000000001, nobody is going to know to search for just "1". Is my thinking right on this or no?
– Dan
Nov 20 '18 at 16:49