在django中自动生成表单的表单域 [英] Auto-generate form fields for a Form in django
问题描述
因此,表单将包含每个类别的条目,选择将是该类别中的技能。
models.py
class SkillCategory(models.Model):
/ pre>
name = models.CharField(max_length = 50)
class Skill(models.Model):
name = models.CharField(max_length = 50)
category = models.ForeignKey(SkillCategory)
有没有办法自动生成表单域?
我知道我可以在每个SkillCategory的表单中手动添加一个SkillCategory条目,但是将其作为模型的原因是,可以自由编辑技能和技能类别。
我想做这样的事情:
(我试过这个,但没有得到它的工作,不记得确切的错误...)
forms.py
类SkillSelectionForm(forms.Form)
def __init __(* args,** kwargs):
super(SkillSelectionForm,self).__ init __(* args,** kwargs)
for SkillCategory.objects.all()
category_skills = [(pk,s.name)for c in c.skill_set.all()]
setattr(self,c.name,forms.MultipleChoiceField(choices = category_skills,widget = forms.CheckboxSelectMultiple )
解决方案
这将使用SkillCategory.name创建一个表单域条目,并将其分配给技能中的选项。 field_name / display_name用于避免非ascii 类别名称的问题。
forms.py
def get_categorized_skills():
skills = {}
for Skill.objects.values('pk' ,'name','category__name')。order_by('category__name'):
如果s ['category__name']不在skill.keys()中:
技能[s ['category__name']] = []
技能[s ['category__name']]。append((s ['pk'],s ['name']))
返回技能
class SkillSelectionForm (form.Form):
def __init __(self,* args,** kwargs):
super(SkillSelectionForm,self).__ init __(* args,** kwargs)
skills = get_categorized_skills ()
for idx,cat in enumerate(skills.keys()):
field_name = u'category- {0}'。format(idx)
display_name = cat
self.fields [field_name] = forms.MultipleChoiceField(choices = skills [ca t],widget = forms.CheckboxSelectMultiple,label = display_name)
解决方案p>看看在Django创建动态表单,从 b-list.org 和 uswaretech.com 一>。我已经成功地使用这些示例从模型中动态创建表单内容。
I have some models and I want to generate a multi-selection form from this data. So the form would contain an entry for each category and the choices would be the skills in that category.
models.py
class SkillCategory(models.Model): name = models.CharField(max_length=50) class Skill(models.Model): name = models.CharField(max_length=50) category = models.ForeignKey(SkillCategory)
Is there a way to auto-generate the form fields? I know I can manually add a 'SkillCategory' entry in the form for each SkillCategory, but the reason to have it as a model is so skills and skillcategories can be edited freely.
I want to do something like this: (I tried this, but didn't get it to work, don't remember the exact error...)
forms.py
class SkillSelectionForm(forms.Form): def __init__(*args, **kwargs): super(SkillSelectionForm, self).__init__(*args, **kwargs) for c in SkillCategory.objects.all(): category_skills = [(pk, s.name) for s in c.skill_set.all()] setattr(self, c.name, forms.MultipleChoiceField(choices=category_skills, widget=forms.CheckboxSelectMultiple))
SOLUTION
This creates a form field entry using the SkillCategory.name and assigns choices as those in Skill. field_name/display_name are used to avoid issues with non-ascii category names.
forms.py
def get_categorized_skills(): skills = {} for s in Skill.objects.values('pk', 'name', 'category__name').order_by('category__name'): if s['category__name'] not in skills.keys(): skills[s['category__name']] = [] skills[s['category__name']].append((s['pk'], s['name'])) return skills class SkillSelectionForm(forms.Form): def __init__(self, *args, **kwargs): super(SkillSelectionForm, self).__init__(*args, **kwargs) skills = get_categorized_skills() for idx, cat in enumerate(skills.keys()): field_name = u'category-{0}'.format(idx) display_name = cat self.fields[field_name] = forms.MultipleChoiceField(choices=skills[cat], widget=forms.CheckboxSelectMultiple, label=display_name)
解决方案Take a look at creating dynamic forms in Django, from b-list.org and uswaretech.com. I've had success using these examples to dynamically create form content from models.
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