存储在数据库中以用于下拉单一选择框？（django）

发布于 2025-02-05 07:05:45 字数 1419 浏览 2 评论 0原文

我有下拉单选框“月” ，带有 3选项“ 1月”，“ 2月”和“ 3月” ，如下所示：

这是的代码下拉单一选择框“月” “ date”类下面的代码：

# "store/models.py"

from django.db import models

class Date(models.Model):
    class Months(models.TextChoices):
        JANUARY  = 'JAN', 'January'
        FEBRUARY = 'FEB', 'February'
        MARCH    = 'MAR', 'March'
    
    month = models.CharField(max_length=100, choices=Months.choices)

这是的旧版本代码，下拉单曲单。 中的box“ noter” “ date”类下面等同于上述代码：

# "store/models.py"

from django.db import models

class Date(models.Model):
    JANUARY  = 'JAN'
    FEBRUARY = 'FEB'
    MARCH    = 'MAR'

    MANTHS = [
        (JANUARY,  'January'),
        (FEBRUARY, 'February'),
        (MARCH,    'March')
    ]

    month = models.CharField(max_length=100, choices=MANTHS)

现在，如果我选择“ 2月” ，然后单击 “保存” ，数据库中存储的内容？ “ 2月” ？ “ feb” ？还是“ 2月” ？

原文

I have the Dropdown Single Select Box "Month" with 3 options "January", "February" and "March" as shown below:

This is the code for the Dropdown Single Select Box "Month" in "Date" class below:

# "store/models.py"

from django.db import models

class Date(models.Model):
    class Months(models.TextChoices):
        JANUARY  = 'JAN', 'January'
        FEBRUARY = 'FEB', 'February'
        MARCH    = 'MAR', 'March'
    
    month = models.CharField(max_length=100, choices=Months.choices)

And, this is the old version code for the Dropdown Single Select Box "Month" in "Date" class below which is equivalent to the above code:

# "store/models.py"

from django.db import models

class Date(models.Model):
    JANUARY  = 'JAN'
    FEBRUARY = 'FEB'
    MARCH    = 'MAR'

    MANTHS = [
        (JANUARY,  'January'),
        (FEBRUARY, 'February'),
        (MARCH,    'March')
    ]

    month = models.CharField(max_length=100, choices=MANTHS)

Now, if I choose "February" and click on "SAVE", what is stored in database? "FEBRUARY"? "FEB"? or "February"?

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胡大本事 2025-02-12 07:05:46

“ feb” 存储在数据库中。实际如下所示，“ 2月” 只是一个变量，“ feb” 是存储在db（数据库）和“ 2月”中的值中显示的选项是 on “添加日期”页面 django admin（GUI）：

# "store/models.py"

from django.db import models

class Date(models.Model):
    class Months(models.TextChoices):
     # |Variable|  | DB | | Option |
        JANUARY  = 'JAN', 'January'
        FEBRUARY = 'FEB', 'February'
        MARCH    = 'MAR', 'March'
    
    month = models.CharField(max_length=100, choices=Months.choices)

对于旧下面的版本代码：

# "store/models.py"

from django.db import models

class Date(models.Model):
 # |Variable|  | DB | 
    JANUARY  = 'JAN'
    FEBRUARY = 'FEB'
    MARCH    = 'MAR'

    MANTHS = [
      # |Variable| | Option |
        (JANUARY,  'January'),
        (FEBRUARY, 'February'),
        (MARCH,    'March')
    ]

    month = models.CharField(max_length=100, choices=MANTHS)

如下所示，“ feb” 存储在数据库（sqlite）

” ：

def __str__(self):
    return self.month

您可以在上查看数据库中存储的内容“选择日期更改日期” django admin（GUI），如下所示：

这是下面的完整代码：

# "store/models.py"

from django.db import models

class Date(models.Model):
    class Months(models.TextChoices):
     # |Variable|  | DB | | Option |
        JANUARY  = 'JAN', 'January'
        FEBRUARY = 'FEB', 'February'
        MARCH    = 'MAR', 'March'
    
    month = models.CharField(max_length=100, choices=Months.choices)

    def __str__(self):
        return self.month

，这是以下旧版本的完整代码：

# "store/models.py"

from django.db import models

class Date(models.Model):
 # |Variable|  | DB | 
    JANUARY  = 'JAN'
    FEBRUARY = 'FEB'
    MARCH    = 'MAR'

    MANTHS = [
      # |Variable| | Option |
        (JANUARY,  'January'),
        (FEBRUARY, 'February'),
        (MARCH,    'March')
    ]

    month = models.CharField(max_length=100, choices=MANTHS)

    def __str__(self):
        return self.month

"FEB" is stored in database. Actually as shown below, "FEBRUARY" is just a variable and "FEB" is the value stored in DB(Database) and "February" is the option displayed in the Dropdown Single Select Box "Month" on "Add date" page of Django Admin(GUI):

# "store/models.py"

from django.db import models

class Date(models.Model):
    class Months(models.TextChoices):
     # |Variable|  | DB | | Option |
        JANUARY  = 'JAN', 'January'
        FEBRUARY = 'FEB', 'February'
        MARCH    = 'MAR', 'March'
    
    month = models.CharField(max_length=100, choices=Months.choices)

For the old version code below:

# "store/models.py"

from django.db import models

class Date(models.Model):
 # |Variable|  | DB | 
    JANUARY  = 'JAN'
    FEBRUARY = 'FEB'
    MARCH    = 'MAR'

    MANTHS = [
      # |Variable| | Option |
        (JANUARY,  'January'),
        (FEBRUARY, 'February'),
        (MARCH,    'March')
    ]

    month = models.CharField(max_length=100, choices=MANTHS)

And as shown below, "FEB" is stored in database(SQLite)

In addition, by adding this code below to "Date" class:

def __str__(self):
    return self.month

You can check what is stored in database on "Select date to change" page of Django Admin(GUI) as shown below:

This is the full code below:

# "store/models.py"

from django.db import models

class Date(models.Model):
    class Months(models.TextChoices):
     # |Variable|  | DB | | Option |
        JANUARY  = 'JAN', 'January'
        FEBRUARY = 'FEB', 'February'
        MARCH    = 'MAR', 'March'
    
    month = models.CharField(max_length=100, choices=Months.choices)

    def __str__(self):
        return self.month

And, this is the full code for the old version below:

# "store/models.py"

from django.db import models

class Date(models.Model):
 # |Variable|  | DB | 
    JANUARY  = 'JAN'
    FEBRUARY = 'FEB'
    MARCH    = 'MAR'

    MANTHS = [
      # |Variable| | Option |
        (JANUARY,  'January'),
        (FEBRUARY, 'February'),
        (MARCH,    'March')
    ]

    month = models.CharField(max_length=100, choices=MANTHS)

    def __str__(self):
        return self.month

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