首先我使用的是Python 3.7.3和Django 2.2
我在同一视图中处理多个表单集时遇到问题。在我看来，我正在for循环中创建表单集（在下面进行检查），然后将它们添加到列表中。在我的模板中，对该列表执行一个for循环，并在模板中显示表单集。我认为我所做的工作很好，但是当表单集无效时会发生错误（因为我也进行了一些验证）。当某个表单集无效（因为不接受值）时，其他表单集也将使用这些值进行初始化。为什么？
models.py
class Set(models.Model):
timeSet = models.DecimalField(max_digits=5, decimal_places=2, blank=True, null=True)
scoreTeam1 = models.IntegerField(null=True)
scoreTeam2 = models.IntegerField(null=True)
match = models.ForeignKey(Match, default=None, on_delete=models.CASCADE)
class Match(models.Model):
isFinished = models.BooleanField(default=False)
team1Win = models.BooleanField(default=False)
team2Win = models.BooleanField(default=False)
phase = models.ForeignKey(Phase, default=None, on_delete=models.CASCADE)
teams = models.ManyToManyField(Team, default=None, blank=True)
tournament_manage_phase_matches.html
{% for match in matches %}
{% if match.teams.first.pool == pool %}
<div class="col-lg-12">
{% if match.isFinished == False %}
<div class="btn-group dropright">
<button type="button" class="btn btn-secondary">
Field number : {{ pool.field.numField }} | {{ match.teams.first.name }} VS {{ match.teams.last.name }}
</button>
<button type="button" class="btn btn-secondary dropdown-toggle dropdown-toggle-split" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
<span class="sr-only">Toggle Dropright</span>
</button>
<div class="dropdown-menu">
{% for formset_set in list_formset_set %}
{% if formset_set.match == match %}
<form class="px-4 py-3" method="post">
{% csrf_token %}
{{ formset_set|crispy }}
{{ formset_set.management_form }}
<button type="submit" class="btn btn-primary" value="{{ match.pk }}" name="match_pk">Save score</button>
</form>
{% endif %}
{% endfor %}
</div>
</div>
{% else %}
{% if match.team1Win == False and match.team2Win == False %}
<label>{{ match.teams.first.name }} VS {{ match.teams.last.name }} : Match nul</label>
{% else %}
{% if match.team1Win == True and match.team2Win == False %}
<label>{{ match.teams.first.name }} VS {{ match.teams.last.name }} : Victory {{ match.teams.first.name }}</label>
{% endif %}
{% if match.team1Win == False and match.team2Win == True %}
<label>{{ match.teams.first.name }} VS {{ match.teams.last.name }} : Victory {{ match.teams.last.name }}</label>
{% endif %}
{% endif %}
{% endif %}
</div>
{% endif %}
{% endfor %}
总而言之，当我提交一个表单集时，如果它无效，所有其他表单集都将变得像我刚提交的表单集，我不明白为什么。 如果您发现我的操作有问题，请也告诉我：）
编辑：
views.py
...
#creation of forms
list_formset_set = []
for match in matches:
if match.isFinished == False:
formset_set = MatchSetFormset(request.POST or None, instance=match, prefix="form-" + str(match.pk) + "-match")
formset_set.match = match
list_formset_set.append(formset_set)
for formset_set in list_formset_set:
id_match_submit = request.POST.get("match_pk")
str_id_match_formet_set = str(formset_set.match.pk)
if id_match_submit == str_id_match_formet_set:
if formset_set.is_valid():
formset_set.save()
nb_set_winner_t1 = 0
nb_set_winner_t2 = 0
for set_match in formset_set:
if set_match.cleaned_data.get('scoreTeam1') == set_match.cleaned_data.get('scoreTeam2'):
nb_set_winner_t1 += 0
nb_set_winner_t2 -= 0
else:
if set_match.cleaned_data.get('scoreTeam1') > set_match.cleaned_data.get('scoreTeam2'):
nb_set_winner_t1 += 1
nb_set_winner_t2 -= 1
else:
nb_set_winner_t1 -= 1
nb_set_winner_t2 += 1
match = formset_set.cleaned_data[0].get('match')
team1 = formset_set.cleaned_data[0].get('match').teams.first()
team2 = formset_set.cleaned_data[0].get('match').teams.last()
if nb_set_winner_t1 == nb_set_winner_t2:
team1.totalpoints += sport.nbPointPerDraw
team2.totalpoints += sport.nbPointPerDraw
team1.save()
team2.save()
match.isFinished = True
match.save()
else:
if nb_set_winner_t1 > nb_set_winner_t2:
team1.totalpoints += sport.nbPointPerVictory
team1.nbVictory += 1
team2.totalpoints += sport.nbPointPerDefeat
team2.nbDefeat += 1
team1.save()
team2.save()
match.team1Win = True
match.isFinished = True
match.save()
else:
team1.totalpoints += sport.nbPointPerDefeat
team1.nbDefeat += 1
team2.totalpoints += sport.nbPointPerVictory
team2.nbVictory += 1
team1.save()
team2.save()
match.team2Win = True
match.isFinished = True
match.save()
teams = Team.objects.filter(pool__in=pools).order_by('-totalpoints') #"-" means descending
for index, team in enumerate(teams):
team.position = index + 1
return redirect('matches_phase_manage_tournament', id=id, id_phase=id_phase)
else:
# reload formsets
print("invalid")
环境：
请求方法：POST
要求网址：http://127.0.0.1:8000/tournament/admin-1/manage-phase/30-matches/
Django版本：2.2
Python版本：3.7.3
已安装的应用程序：
['django.contrib.admin'，
'django.contrib.auth'，
'django.contrib.contenttypes'，
'django.contrib.sessions'，
'django.contrib.messages'，
'django.contrib.staticfiles'，
'users.apps.UsersConfig'，
'crispy_forms'，
'类别'，
'matches'，
“阶段”，
'池'，
“规则”，
'集合'，
'体育'，
“团队”，
“比赛”，
'页面'，
“健身房”，
'fields']
已安装的中间件：
['django.middleware.security.SecurityMiddleware'，
'django.contrib.sessions.middleware.SessionMiddleware'，
'django.middleware.common.CommonMiddleware'，
'django.middleware.csrf.CsrfViewMiddleware'，
'django.contrib.auth.middleware.AuthenticationMiddleware'，
'django.contrib.messages.middleware.MessageMiddleware'，
'django.middleware.clickjacking.XFrameOptionsMiddleware']
追溯：
内部文件“ C：\ Users \ 33643 \ Documents \ Projets Django \ TournamentManagerApp \ lib \ site-packages \ django \ core \ handlers \ exception.py”
34. response = get_response（request）
_get_response
中的文件“ C：\ Users \ 33643 \ Documents \ Projets Django \ TournamentManagerApp \ lib \ site-packages \ django \ core \ handlers \ base.py” 115.响应= self.process_exception_by_middleware（e，request）
_get_response
中的文件“ C：\ Users \ 33643 \ Documents \ Projets Django \ TournamentManagerApp \ lib \ site-packages \ django \ core \ handlers \ base.py” 113. response = wrapd_callback（request，* callback_args，** callback_kwargs）
matchs_phase_view中的文件“ C：\ Users \ 33643 \ Documents \ Projets Django \ TournamentManagerApp \ src \ pages \ views.py”
370. print（formset）
中的文件“ C：\ Users \ 33643 \ Documents \ Projets Django \ TournamentManagerApp \ lib \ site-packages \ django \ utils \ html.py” 388. klass。 str = lambda self：mark_safe（klass_str（self））
str
中的文件“ C：\ Users \ 33643 \ Documents \ Projets Django \ TournamentManagerApp \ lib \ site-packages \ django \ forms \ formsets.py” 64.返回self.as_table（）
as_table中的文件“ C：\ Users \ 33643 \ Documents \ Projets Django \ TournamentManagerApp \ lib \ site-packages \ django \ forms \ formsets.py”
404. forms =''.join（form.as_table（）用于自身形式）
iter
中的文件“ C：\ Users \ 33643 \ Documents \ Projets Django \ TournamentManagerApp \ lib \ site-packages \ django \ forms \ formsets.py” 68.返回iter（self.forms）
获取
中的文件“ C：\ Users \ 33643 \ Documents \ Projets Django \ TournamentManagerApp \ lib \ site-packages \ django \ utils \ functional.py” 80. res =实例。 dict [self.name] = self.func（instance）
表单中的文件“ C：\ Users \ 33643 \ Documents \ Projets Django \ TournamentManagerApp \ lib \ site-packages \ django \ forms \ formsets.py”
136. for i in range（self.total_form_count（））]
total_form_count中的文件“ C：\ Users \ 33643 \ Documents \ Projets Django \ TournamentManagerApp \ lib \ site-packages \ django \ forms \ formsets.py”
110.返回最小值（self.management_form.cleaned_data [TOTAL_FORM_COUNT]，self.absolute_max）
获取
中的文件“ C：\ Users \ 33643 \ Documents \ Projets Django \ TournamentManagerApp \ lib \ site-packages \ django \ utils \ functional.py” 80. res =实例。 dict [self.name] = self.func（instance）
在management_form中的文件“ C：\ Users \ 33643 \ Documents \ Projets Django \ TournamentManagerApp \ lib \ site-packages \ django \ forms \ formsets.py”
92. code ='missing_management_form'，
异常类型：/ tournament / admin-1 / manage-phase / 30-matches /
处的ValidationError 异常值：['ManagementForm数据丢失或已被篡改']