Add "other editor" field with custom validation

manuels/forms.py

@@ -1,4 +1,5 @@
 from django import forms
+from django.core.exceptions import ValidationError
 
 from manuels.models import Book, SuppliesRequirement
 
@@ -6,8 +7,8 @@ from manuels.models import Book, SuppliesRequirement
 class EditBookForm(forms.ModelForm):
     class Meta:
         model = Book
-        fields = ['teacher', 'level', 'field', 'no_book', 'see_later', 'title', 'authors', 'editor', 'publication_year',
-                  'isbn', 'price', 'previously_acquired', 'comments']
+        fields = ['teacher', 'level', 'field', 'no_book', 'see_later', 'title', 'authors', 'editor', 'other_editor',
+                  'publication_year', 'isbn', 'price', 'previously_acquired', 'comments']
 
     no_book = forms.BooleanField(label='Pas de livre pour cette classe/matière', required=False, initial=False)
     see_later = forms.BooleanField(
@@ -21,11 +22,28 @@ class EditBookForm(forms.ModelForm):
         self.fields['authors'].widget = forms.TextInput()
         self.fields['comments'].widget.attrs.update(rows=3)
 
+    def clean(self):
+        editor = self.cleaned_data['editor']
+        other_editor = self.cleaned_data['other_editor']
+        title = self.cleaned_data['title']
+
+        if (editor
+                and 'autre' in editor.name.lower()
+                and not other_editor
+                and title not in ['PAS DE LIVRE POUR CETTE CLASSE', 'VOIR À LA RENTRÉE']):
+            self.add_error(
+                'other_editor',
+                ValidationError(
+                    "Vous devez préciser l'éditeur si vous n'en choisissez pas un parmi la liste.",
+                    code='missing'
+                )
+            )
+
 
 class AddBookForm(EditBookForm):
     class Meta(EditBookForm.Meta):
-        fields = ['teacher', 'level', 'field', 'no_book', 'see_later', 'title', 'authors', 'editor', 'publication_year',
-                  'isbn', 'price', 'previously_acquired', 'comments', 'add_another']
+        fields = ['teacher', 'level', 'field', 'no_book', 'see_later', 'title', 'authors', 'editor', 'other_editor',
+                  'publication_year', 'isbn', 'price', 'previously_acquired', 'comments', 'add_another']
 
     add_another = forms.BooleanField(label='Ajouter un autre livre', required=False, initial=True)
 

manuels/migrations/0024_book_other_editor.py

@@ -0,0 +1,18 @@
+# Generated by Django 2.0.5 on 2018-06-07 05:22
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('manuels', '0023_auto_20180604_1827'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='book',
+            name='other_editor',
+            field=models.CharField(blank=True, max_length=100, verbose_name='préciser'),
+        ),
+    ]

manuels/migrations/0025_auto_20180607_0746.py

@@ -0,0 +1,18 @@
+# Generated by Django 2.0.5 on 2018-06-07 05:46
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('manuels', '0024_book_other_editor'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='book',
+            name='comments',
+            field=models.TextField(blank=True, help_text='Ce message sera visible par la documentaliste.', verbose_name='commentaires'),
+        ),
+    ]

manuels/models.py

@@ -141,7 +141,6 @@ def positive_float_validator(value):
         raise ValidationError("%(value)s doit être un nombre positif")
 
 
-
 class Book(BaseModel):
     class Meta:
         verbose_name = 'livre'
@@ -153,6 +152,7 @@ class Book(BaseModel):
     title = models.TextField('titre')
     authors = models.TextField('auteurs')
     editor = models.ForeignKey(verbose_name='éditeur', to=Editor, on_delete=models.PROTECT, null=True)
+    other_editor = models.CharField(verbose_name='préciser', max_length=100, blank=True)
     publication_year = models.PositiveIntegerField('année de publication')
     isbn = models.CharField(
         'ISBN/EAN',
@@ -180,8 +180,7 @@ class Book(BaseModel):
     comments = models.TextField(
         'commentaires',
         blank=True,
-        help_text="Ce message sera visible par la documentaliste. Vous pouvez l'utiliser par exemple si vous souhaitez "
-                  "saisir un éditeur qui n'est pas proposé."
+        help_text="Ce message sera visible par la documentaliste."
     )
 
     @property

manuels/static/manuels/no_book.js

@@ -56,4 +56,27 @@ document.addEventListener("DOMContentLoaded", function (event) {
         });
     });
 
+
+    var editor = document.querySelector('#id_editor');
+    var otherEditor = document.querySelector('#id_other_editor').parentElement;
+
+    if (editor.options[editor.selectedIndex].text.toLowerCase().indexOf('autre') !== -1) {
+        otherEditor.style.display = 'block';
+    }
+    else {
+        otherEditor.style.display = 'none';
+    }
+
+    editor.addEventListener('change', function(event) {
+        console.log(editor.options);
+        console.log(editor.selectedIndex);
+        console.log(editor.options[editor.selectedIndex].text);
+        if (editor.options[editor.selectedIndex].text.toLowerCase().indexOf('autre') !== -1) {
+            otherEditor.style.display = 'block';
+        }
+        else {
+            otherEditor.style.display = 'none';
+        }
+    });
+
 });