django - 表单在 Django 中无效

Question

我对 Django 表单有一个奇怪的问题。有这个表单，我可以根据单击的提交按钮完成不同的操作。在开发的某个时刻，一切都运行良好：我的表单验证正常，并且它也完全按照我的意愿进行操作。但是现在（我真的不知道我做错了什么来破坏它），提交操作不起作用。我没有收到任何错误，它什么也没做。

这是我的 forms.py 文件中的代码：

class AssetModif(forms.Form):    
    def __init__(self, *args, **kwargs):
        proj_id = kwargs.pop('proj_id')
        super(AssetModif, self).__init__(*args, **kwargs)
        self.proj_id = proj_id
        EPISODE_CHOICES = [('-1', '------------')]
        for e in Project.objects.filter(proj_id_parent=proj_id).order_by('proj_saison', 'proj_numepisode'):
            EPISODE_CHOICES.append((e.proj_name,
                "e" + str(e.proj_saison).zfill(2) + str(e.proj_numepisode).zfill(2) +
                "_" + e.proj_name))
            self.fields['episodes'].choices = EPISODE_CHOICES
            self.fields['episode_etat'].choices = EPISODE_CHOICES

    TYPE_CHOICES = [(type.type_name, type.type_name) for type in Type.objects.all()]
    ASSET_CHOICES = (('', '-- choisir un type en premier'))

    type = forms.ChoiceField(choices=TYPE_CHOICES,
                widget=forms.Select(attrs={'onchange':'get_asset_from_type();'}))
    asset = LazyChoiceField(choices=ASSET_CHOICES, required=False)
    episodes = forms.ChoiceField()

    etat = forms.CharField()
    episode_etat = forms.ChoiceField()

    commentaire = forms.CharField(widget=forms.Textarea)

加上一些 save_action() 方法，如果有人问我可以添加。我的views.py中的代码：

def modif_asset(request):
    try:
        proj = request.session['proj']
        nom = request.session['nom']
    except:
        request.session['proj'] = 1
        proj = request.session['proj']
        request.session['nom'] = ""
        nom = ""

    if request.method == 'POST' and (request.POST.get("action_add_episode", "") == "Ajout Episode"):
        form = AssetModif(request.POST, proj_id = request.session['proj'])
        if form.is_valid():
            asset = form.save_episode()
            #return HttpResponseRedirect(reverse('menu'))
            return render_to_response("asset/modif.html", {'proj':proj, 'form':form, 'asset':asset}, context_instance=RequestContext(request))
        else:
            asset = form.save_episode()
            return render_to_response("asset/modif.html", {'proj':proj, 'form':form, 'asset':"toooooooo"}, context_instance=RequestContext(request))

    elif request.method == 'POST' and (request.POST.get("action_delete_asset", "") == "Suppression BDD"):
        form = AssetModif(request.POST, proj_id = request.session['proj'])
        if form.is_valid():
            asset = form.delete_asset()
            #return HttpResponseRedirect(reverse('menu'))
            return render_to_response("asset/modif.html", {'proj':proj, 'form':form, 'asset':asset}, context_instance=RequestContext(request))

    elif request.method == 'POST' and (request.POST.get("action_ajout_etat", "") == "Ajout Etat"):
        form = AssetModif(request.POST, proj_id = request.session['proj'])
        if form.is_valid():
            asset = form.save_etat()
            return render_to_response("asset/modif.html", {'proj':proj, 'form':form, 'asset':asset}, context_instance=RequestContext(request))

    elif request.method == 'POST' and (request.POST.get("action_ajout_comment", "") == "Ajout Commentaire"):
        form = AssetModif(request.POST, proj_id = request.session['proj'])
        if form.is_valid():
            asset = form.save_comment()
            return render_to_response("asset/modif.html", {'proj':proj, 'form':form, 'asset':asset}, context_instance=RequestContext(request))

    else:
        form = AssetModif(proj_id=request.session['proj'])

    c = {'proj': proj, 'form':form, 'asset':" Miiii "}
    c.update(csrf(request))
    return render_to_response("asset/modif.html", c, context_instance=RequestContext(request))

我的模板是这样的：

<form method="POST" action="" name="form_modif">{% csrf_token %}
  <table>
    <tr><td> Type </td><td> {{ form.type }} </td>
    <td> Asset </td><td> {{ form.asset }} </td></tr>
  </table>

  <div id="ajout_episode">
    <p><b> Premier &eacute;pisode de l'asset </b></p>
    <table>
      <tr><td>Episode</td><td> {{ form.episodes }}</td></tr>
      <tr><td><input type="submit" name="action_add_episode" value="Ajout Episode" /></td></tr>
    </table>
  </div>

  <div id="creation_etat">
    <p><b> Ajout d'un &eacute;tat </b></p>
    <table>
      <tr><td>Etat</td><td> {{ form.etat }}</td></tr>
      <tr><td>Premier &eacute;pisode de l'&eacute;tat</td><td> {{ form.episode_etat }}</td></tr>
      <tr><td><input type="submit" name="action_ajout_etat" value="Ajout Etat" /></td></tr>
    </table>
  </div>

  <div id="ajout_comment">
    <p><b> Ajout d'un commentaire </b></p>
    <table>
      <tr><td> {{ form.commentaire }}</td></tr>
      <tr><td> <input type="submit" name="action_ajout_comment" value="Ajout Commentaire" /></td></tr>
    </table>
  </div>

  <div id="suppression_bdd">
    <p><b> Suppression de l'asset en BDD </b></p>
    <input type="submit" onclick="return verifier();" name="action_delete_asset" value="Suppression BDD" />
</form>

我真的很感激任何帮助，因为我完全坚持

Answer 1

Not an answer too much, but pointers on getting the errors.

Your first starting point should be to look for field errors, you're currently not outputting them at all.

So if you do

    <div id="ajout_episode">
    <p><b> Premier &eacute;pisode de l'asset </b></p>
    <table>
    <tr><td>Episode</td><td> {{ form.episodes }}</td></tr>

    <tr><td><input type="submit" name="action_add_episode" value="Ajout Episode" /></td></tr>
    </table>
    {{form.episodes.errors}}
    </div>

Then it'll display the errors for that field. You could use the following snippet for checking errors: http://djangosnippets.org/snippets/1094/

Forms also have a global error variable, though I can't find or remember the name of it at the moment.

Answer 2

<form method="POST" action="url_to_your_view" name="form_modif">