Add workflow instance transitioning support, add workflow instance detail view

mayan/apps/document_states/forms.py

@@ -3,7 +3,9 @@ from __future__ import unicode_literals
 from django import forms
 from django.utils.translation import ugettext_lazy as _
 
-from .models import WorkflowState, WorkflowTransition
+from common.forms import DetailForm
+
+from .models import WorkflowState, WorkflowInstance, WorkflowTransition
 
 
 class WorkflowStateForm(forms.ModelForm):
@@ -13,7 +15,27 @@ class WorkflowStateForm(forms.ModelForm):
 
 
 class WorkflowTransitionForm(forms.ModelForm):
+    def __init__(self, *args, **kwargs):
+        workflow = kwargs.pop('workflow')
+        super(WorkflowTransitionForm, self).__init__(*args, **kwargs)
+        self.fields['origin_state'].queryset = self.fields['origin_state'].queryset.filter(workflow=workflow)
+        self.fields['destination_state'].queryset = self.fields['destination_state'].queryset.filter(workflow=workflow)
+
     class Meta:
-        # TODO: restrict states to the ones of this workflow
         fields = ('label', 'origin_state', 'destination_state')
         model = WorkflowTransition
+
+
+class WorkflowInstanceTransitionForm(forms.Form):
+    def __init__(self, *args, **kwargs):
+        workflow = kwargs.pop('workflow')
+        super(WorkflowInstanceTransitionForm, self).__init__(*args, **kwargs)
+        self.fields['transition'].choices = workflow.get_transition_choices().values_list('pk', 'label')
+
+    transition = forms.ChoiceField(label=_('Transition'))
+
+
+class WorkflowInstanceDetailForm(DetailForm):
+    class Meta:
+        model = WorkflowInstance
+        fields = ('workflow',)