Question

我正在尝试构建一个用于安排单个（或双重）淘汰锦标赛的表单。例如，考虑一个拥有TeamA，TeamB，TeamC和TeamD团队的联盟（所有这些团队都已在我的数据库中定义）。

表单应该类似于

Style: choice field - {single or double elimination}
Seed1: choice field - {TeamA or TeamB or TeamC or TeamD}
Seed2: choice field - {TeamA or TeamB or TeamC or TeamD}
Seed3: choice field - {TeamA or TeamB or TeamC or TeamD}
Seed4: choice field - {TeamA or TeamB or TeamC or TeamD}

这就是我的......

class EliminationForm(Form):
    """
    Form for generating an elimination structure of Game instances
    """

    choices = [(1, "Single Elimination"), (2, "Double Elimination")]
    style = ChoiceField(choices=choices, widget=Select(attrs={'class':'form-control'}))

如何设置此表单以动态构建联盟中每个团队的“种子”字段？

这是我的models.py

class League(models.Model):
    league_name = models.CharField(max_length=60)

class Team(models.Model):
    league = models.ForeignKey('League')
    team_name = models.CharField(max_length=60)

Answer 1

我认为你要找的是ModelChoiceField。

它允许您使用数据库中的团队填充下拉列表：

class EliminationForm(Form):
    """
    Form for generating an elimination structure of Game instances
    """

    choices = [(1, "Single Elimination"), (2, "Double Elimination")]
    style = ChoiceField(
        choices=choices, 
        widget=Select(attrs={'class':'form-control'})
    )

    seed1 = ModelChoiceField(
        queryset=Team.objects.all(),
    )
    seed2 = ModelChoiceField(
        queryset=Team.objects.all(),
    )
    seed3 = ModelChoiceField(
        queryset=Team.objects.all(),
    )
    seed4 = ModelChoiceField(
        queryset=Team.objects.all(),
    )

您还可以过滤所使用的对象，仅选择同一联赛的球队，或者只选择分配到联赛的球队等。

您可能还想在团队模型中添加__unicode__功能，以定义它在下拉列表中的显示方式。

class Team(models.Model):
    league = models.ForeignKey('League')
    team_name = models.CharField(max_length=60)

    def __unicode__(self):
        return self.team_name

如何在Django中设置此formset

1 个答案: