Convert the checkout detail view to use the DetailView CBV. Update usage the DetailView CBV in the DocumentProperties view. Add checkout details view permission.

mayan/apps/checkouts/forms.py

@@ -1,7 +1,11 @@
 from __future__ import unicode_literals
 
 from django import forms
+from django.utils.translation import ugettext_lazy as _
 
+from common.forms import DetailForm
+
+from .literals import STATE_LABELS
 from .models import DocumentCheckout
 from .widgets import SplitTimeDeltaWidget
 
@@ -13,3 +17,45 @@ class DocumentCheckoutForm(forms.ModelForm):
         widgets = {
             'expiration_datetime': SplitTimeDeltaWidget()
         }
+
+
+class DocumentCheckoutDefailForm(DetailForm):
+    def __init__(self, *args, **kwargs):
+        instance = kwargs['instance']
+
+        extra_fields = (
+            {
+                'label': _('Document status'),
+                'field': lambda instance: STATE_LABELS[instance.checkout_state()]
+            },
+        )
+
+        if instance.is_checked_out():
+            checkout_info = instance.checkout_info()
+            extra_fields += (
+                {
+                    'label': _('User'),
+                    'field': lambda instance: checkout_info.user.get_full_name() or checkout_info.user
+                },
+                {
+                    'label': _('Check out time'),
+                    'field': lambda instance: checkout_info.checkout_datetime,
+                    'widget': forms.widgets.DateTimeInput
+                },
+                {
+                    'label': _('Check out expiration'),
+                    'field': lambda instance: checkout_info.expiration_datetime,
+                    'widget': forms.widgets.DateTimeInput
+                },
+                {
+                    'label': _('New versions allowed?'),
+                    'field': lambda instance: _('Yes') if not checkout_info.block_new_version else _('No')
+                },
+            )
+
+        kwargs['extra_fields'] = extra_fields
+        super(DocumentCheckoutDefailForm, self).__init__(*args, **kwargs)
+
+    class Meta:
+        fields = ()
+        model = DocumentCheckout