Adding of help texts on several webapp fields

I added the argument `help_text` directly in the form class in order to
use it in the template.
Signed-off-by: Matthieu Berjon <matthieu.berjon@inria.fr>

django/allgo/main/forms.py

@@ -2,6 +2,8 @@ from allauth.account.forms import SignupForm
 from django import forms
 from django.contrib.auth.models import User
 from django.core.validators import RegexValidator
+from django.utils.safestring import mark_safe
+
 from taggit.forms import TagField
 
 import config
@@ -162,7 +164,7 @@ class WebappForm(forms.ModelForm):
 
     # Basic
     name = forms.CharField(label="Application name", label_suffix="")
-    contact = forms.EmailField(label="Email contact", label_suffix="", required=False)
+    contact = forms.EmailField(label="Email contact", label_suffix="", required=False, help_text="Enter a valid email only if someone else will be the user's contact.")
     description = forms.CharField(widget=forms.Textarea, label="Description", label_suffix="")
     private = forms.TypedChoiceField(
             coerce=lambda x: x == 'True',
@@ -170,6 +172,7 @@ class WebappForm(forms.ModelForm):
             initial=True,
             label="Private mode",
             label_suffix='',
+            help_text='Select the "private" option if you want to restrict the visibility to yourself.',
             widget=forms.RadioSelect)
 
     # Advanced
@@ -183,8 +186,10 @@ class WebappForm(forms.ModelForm):
     job_queue = forms.ModelChoiceField(
             queryset=JobQueue.objects.all().distinct().order_by("timeout"),
             label='Default job queue',
+            help_text=mark_safe('You can refer to the <a href="https://allgo.gitlabpages.inria.fr/doc/deploy.html#queue-type">queue type documentation</a> for further explanation.'),
             label_suffix='')
     entrypoint = forms.CharField(label="Entrypoint", label_suffix="",
+            help_text=mark_safe('You can refer to the <a href="https://allgo.gitlabpages.inria.fr/doc/entrypoint.html">entry point documentation</a> for further explanation.'),
             initial="/home/allgo/entrypoint")
 
     def __init__(self, *args, **kwargs):

django/allgo/templates/webapp_add.html

@@ -41,7 +41,8 @@
                 <div class="col">
                   <div class="form-group">
                     {{ form.contact.label_tag }}
-                    {{ form.contact | attr:"placeholder:If different from you" | add_class:"form-control" }}
+                    {{ form.contact | attr:"placeholder:john.smith@example.net" | add_class:"form-control" }}
+                    <small class="form-text text-muted">{{ form.contact.help_text }}</small>
                   </div>
                 </div>
               </div>
@@ -49,18 +50,25 @@
               <div class="form-group">
                 {{ form.description.label_tag }}
                 {{ form.description | attr:"placeholder:Consider it as the app README file" | add_class:"form-control" }}
-                <small id="descriptionHelp" class="form-text text-muted"><a href="https://daringfireball.net/projects/markdown/syntax" title="Markdown syntax">Mardown syntax</a> is used for formatting.</small>
+                <small class="form-text text-muted"><a href="https://daringfireball.net/projects/markdown/syntax" title="Markdown syntax">Mardown syntax</a> is used for formatting.</small>
               </div>
 
               <div class="form-group">
                 {{ form.private.label_tag }}
                 <div class="btn-group btn-group-toggle" data-toggle="buttons">
                 {% for private_field in form.private %}
-                  <label class="btn btn-secondary active">
-                    <input type="{{ private_field.data.type }}" id="{{ private_field.id_for_label }}" value="{{ private_field.data.value }}" name="{{ private_field.data.name }}" {% if private_field.data.selected %}checked{% endif %}>{{ private_field.choice_label }}
-                  </label>
+                <label class="btn btn-secondary">
+                  <input 
+                    type="{{ private_field.data.type }}"
+                    id="{{ private_field.id_for_label }}"
+                    value="{{ private_field.data.value }}"
+                    name="{{ private_field.data.name }}"
+                    {% if private_field.data.selected %}checked{% endif %}>
+                  {{ private_field.choice_label }}
+                </label>
                 {% endfor %}
                 </div>
+                  <small class="form-text text-muted">{{ form.private.help_text }}</small>
               </div>
 
             </div>
@@ -100,6 +108,7 @@
                     >{{ choice | fancy_job_queue }}</option>
                   {% endfor %}
                 </select>
+                <small class="form-text text-muted">{{ form.job_queue.help_text }}</small>
               </div>
 
               <div class="form-group col-md-6">
@@ -107,6 +116,7 @@
                 <div class="input-group">
                   {{ form.entrypoint | add_class:"form-control" }}
                 </div>
+                <small class="form-text text-muted">{{ form.entrypoint.help_text }}</small>
               </div>
 
             </div>