Fix #24 on Authentication and New project forms usability.

- Do not display anymore the identifier field in home.

- Let the user enter the id if the slug generated from project name already exists as a project id.

- Moved get_billform_for from 'utils' to 'forms', to avoid issue (was 'from forms import ...' into utils,
  and 'from utils import ...' into forms, which causeed an error).

budget/forms.py

@@ -2,6 +2,8 @@ from flaskext.wtf import *
 from wtforms.widgets import html_params
 from models import Project, Person, Bill
 from datetime import datetime
+from jinja2 import Markup
+from utils import slugify
 
 
 def select_multi_checkbox(field, ul_class='', **kwargs):
@@ -18,16 +20,41 @@ def select_multi_checkbox(field, ul_class='', **kwargs):
     return u''.join(html)
 
 
+def get_billform_for(request, project, set_default=True):
+    """Return an instance of BillForm configured for a particular project.
+
+    :set_default: if set to True, on GET methods (usually when we want to 
+                  display the default form, it will call set_default on it.
+    
+    """
+    form = BillForm()
+    form.payed_for.choices = form.payer.choices = [(str(m.id), m.name) for m in project.active_members]
+    form.payed_for.default = [str(m.id) for m in project.active_members]
+
+    if set_default and request.method == "GET":
+        form.set_default()
+    return form
+
+
 class ProjectForm(Form):
     name = TextField("Project name", validators=[Required()])
     id = TextField("Project identifier", validators=[Required()])
-    password = PasswordField("Password", validators=[Required()])
+    password = PasswordField("Private code", validators=[Required()])
     contact_email = TextField("Email", validators=[Required(), Email()])
     submit = SubmitField("Create the project")
 
     def validate_id(form, field):
-        if Project.query.get(field.data):
+        form.id.data = slugify(field.data)
-            raise ValidationError("This project id is already used")
+        if Project.query.get(form.id.data):
+            raise ValidationError(Markup("""The project identifier is used
+                                  to log in and for the URL of the project.
+                                  <br />
+                                  We tried to generate an identifier for you but
+                                  a projet with this identifier already exists.
+                                  <br />
+                                  Please create a new identifier you will be able
+                                  to remember.
+                                  """))
 
     def save(self):
         """Create a new project with the information given by this form.
@@ -42,7 +69,7 @@ class ProjectForm(Form):
 
 class AuthenticationForm(Form):
     id = TextField("Project identifier", validators=[Required()])
-    password = PasswordField("Password", validators=[Required()])
+    password = PasswordField("Private code", validators=[Required()])
     submit = SubmitField("Get in")
 
 

budget/run.py

@@ -1,5 +1,5 @@
 from web import main, db, mail
-import api
+#import api
 
 from flask import *
 

budget/templates/forms.html

@@ -17,8 +17,11 @@
       </div> <!-- /clearfix -->
 {% endmacro %}
 
-{% macro submit(field, cancel=False) -%}
+{% macro submit(field, cancel=False, home=False) -%}
     <div class="actions">
+        {% if home %}
+            <a href="{{ url_for(".home") }}" class="btn">Back Home</a>
+        {% endif %}
         <button type="submit" class="btn primary">{{ field.name }}</button>
         {% if cancel %}
             <button id="cancel-form" type="reset" class="btn">Cancel</button>
@@ -42,12 +45,14 @@
 
     {% include "display_errors.html" %}
     {{ form.hidden_tag() }}
-    {{ input(form.name) }}
+    {% if not home %}
     {{ input(form.id) }}
+    {% endif %}
+    {{ input(form.name) }}
     {{ input(form.password) }}
     {{ input(form.contact_email) }}
     {% if not home %}
-    {{ submit(form.submit) }}
+    {{ submit(form.submit, home=True) }}
     {% endif %}
 
 {% endmacro %}

budget/utils.py

@@ -1,24 +1,19 @@
+import re
 from functools import wraps
 from flask import redirect, url_for, session, request
 from werkzeug.routing import HTTPException, RoutingException
 
-from models import Bill, Project
+def slugify(value):
-from forms import BillForm
+    """Normalizes string, converts to lowercase, removes non-alpha characters,
-
+    and converts spaces to hyphens.
-def get_billform_for(project, set_default=True):
-    """Return an instance of BillForm configured for a particular project.
-
-    :set_default: if set to True, on GET methods (usually when we want to 
-                  display the default form, it will call set_default on it.
 
+    Copy/Pasted from ametaireau/pelican/utils itself took from django sources.
     """
-    form = BillForm()
+    if type(value) == unicode:
-    form.payed_for.choices = form.payer.choices = [(str(m.id), m.name) for m in project.active_members]
+        import unicodedata
-    form.payed_for.default = [str(m.id) for m in project.active_members]
+        value = unicodedata.normalize('NFKD', value).encode('ascii', 'ignore')
-
+    value = unicode(re.sub('[^\w\s-]', '', value).strip().lower())
-    if set_default and request.method == "GET":
+    return re.sub('[-\s]+', '-', value)
-        form.set_default()
-    return form
 
 class Redirect303(HTTPException, RoutingException):
     """Raise if the map requests a redirect. This is for example the case if

budget/web.py

@@ -5,9 +5,9 @@ from flaskext.mail import Mail, Message
 
 # local modules
 from models import db, Project, Person, Bill
-from forms import (ProjectForm, AuthenticationForm, BillForm, MemberForm, 
+from forms import (get_billform_for, ProjectForm, AuthenticationForm, BillForm,
-                   InviteForm, CreateArchiveForm)
+                   MemberForm, InviteForm, CreateArchiveForm)
-from utils import get_billform_for, Redirect303
+from utils import Redirect303
 
 """
 The blueprint for the web interface.
@@ -111,6 +111,12 @@ def create_project():
         form.name.data = request.values['project_id']
 
     if request.method == "POST":
+        # At first, we don't want the user to bother with the identifier
+        # so it will automatically be missing because not displayed into the form
+        # Thus we fill it with the same value as the filled name, the validation will
+        # take care of the slug
+        if not form.id.data:
+            form.id.data = form.name.data
         if form.validate():
             # save the object in the db
             project = form.save()
@@ -178,7 +184,7 @@ def list_bills():
     bills = g.project.get_bills()
     return render_template("list_bills.html", 
             bills=bills, member_form=MemberForm(g.project),
-            bill_form=get_billform_for(g.project)
+            bill_form=get_billform_for(request, g.project)
     )
 
 @main.route("/<project_id>/members/add", methods=["GET", "POST"])
@@ -224,7 +230,7 @@ def remove_member(member_id):
 
 @main.route("/<project_id>/add", methods=["GET", "POST"])
 def add_bill():
-    form = get_billform_for(g.project)
+    form = get_billform_for(request, g.project)
     if request.method == 'POST':
         if form.validate():
             bill = Bill()
@@ -250,7 +256,7 @@ def delete_bill(bill_id):
 @main.route("/<project_id>/edit/<int:bill_id>", methods=["GET", "POST"])
 def edit_bill(bill_id):
     bill = Bill.query.get_or_404(bill_id)
-    form = get_billform_for(g.project, set_default=False)
+    form = get_billform_for(request, g.project, set_default=False)
     if request.method == 'POST' and form.validate():
         form.save(bill)
         db.session.commit()