Error displaying listfield model_form on mongoengine

Question

I am using Flask, mongoengine for a project, and I am trying to get basic things working from http://docs.mongodb.org/manual/tutorial/write-a-tumblelog-application-with-flask-mongoengine/

After implementing all of the above links, I added a new field for the "tags" to "Mail", and when I try to create a message, my tags do not show the input field.

Any help is appreciated.

My code is below

class Post(db.Document): created_at = db.DateTimeField(default=datetime.datetime.now, required=True) title = db.StringField(max_length=255, required=True) slug = db.StringField(max_length=255, required=True) body = db.StringField(required=True) views = db.IntField(default=0) category = db.StringField() tags = db.ListField(db.StringField(max_length=30)) 

template

 {% macro render(form) -%} <fieldset> {% for field in form %} {% if field.type in ['CSRFTokenField', 'HiddenField'] %} {{ field() }} {% else %} <div class="clearfix {% if field.errors %}error{% endif %}"> {{ field.label }} <div class="input"> {% if field.type == 'ListField' %} {% for subfield in field.entires %} {% if subfield.type == 'StringField' %} {{ field }} {% endif %} {% endfor %} {% elif field.name == "body" %} {{ field(rows=10, style="width:360px;") }} {% else %} {{ field() }} {% endif %} {% if field.errors or field.help_text %} <span class="help-inline"> {% if field.errors %} {{ field.errors|join(' ') }} {% else %} {{ field.help_text }} {% endif %} </span> {% endif %} </div> </div> {% endif %} {% endfor %} </fieldset> {% endmacro %} 

admin.py

 from flask import Blueprint, request, redirect, render_template, url_for from flask.views import MethodView from pprint import pprint from flask.ext.mongoengine.wtf import model_form from tumblog.auth import requires_auth from tumblog.models import Post admin = Blueprint('admin', __name__, template_folder='templates') class List(MethodView): decorators = [requires_auth] cls = Post def get(self,slug=None): posts = self.cls.objects.all() return render_template('admin/list.html', posts=posts) class delList(MethodView): decorators = [requires_auth] cls = Post def get(self,slug=None): try: post = self.cls.objects.get(slug=slug) post.delete() except: pass return redirect(url_for('admin.index')) class Detail(MethodView): decorators = [requires_auth] def get_context(self, slug=None): form_cls = model_form(Post, exclude=('created_at', 'views')) if slug: post = Post.objects.get_or_404(slug=slug) if request.method == 'POST': form = form_cls(request.form, inital=post._data) else: form = form_cls(obj=post) else: post = Post() form = form_cls(request.form) context = { "post": post, "form": form, "create": slug is None } return context def get(self, slug): context = self.get_context(slug) return render_template('admin/detail.html', **context) def post(self, slug): context = self.get_context(slug) form = context.get('form') if form.validate(): post = context.get('post') form.populate_obj(post) post.save() return redirect(url_for('admin.index')) return render_template('admin/detail.html', **context) # Register the urls admin.add_url_rule('/admin/', view_func=List.as_view('index')) admin.add_url_rule('/admin/create/', defaults={'slug': None}, view_func=Detail.as_view('create')) admin.add_url_rule('/admin/edit/<slug>/', view_func=Detail.as_view('edit')) admin.add_url_rule('/admin/delete/<slug>/', view_func=delList.as_view('delete')) 

Answer 1

Because list boxes can have their own special types for each item, you may need to define custom fields ; or you can directly use wtforms.fields.FieldList .

It is hard to say what mistake you are pushing; you can try putting information in a debug form, for example.

 {% for field in form %} <!-- {{field.type}} {{field.label}} --> ... etc ... {% endfor %} 

Also noticed that you had a typo

 {% for subfield in field.entires %} <=== did you mean field.entries ? 

question about the bounty:

If you do not define help_text when declaring your field, this will not work as expected:

 {{ field.help_text }} 

You need to enable it when declaring your fields, e.g.

 oid = ObjectIdField(..., help_text="object id")