bitbake: toaster: orm Add util functions to return common querysets

We use these querysets when creating tables of results and also when we
want to have a typeahead search. These can also form the basis of future
API endpoints.

(Bitbake rev: 2a10fecd985343802f0e99c6fff25c28980eee20)

Signed-off-by: Michael Wood <michael.g.wood@intel.com>
Signed-off-by: Ed Bartosh <ed.bartosh@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

bitbake/lib/toaster/orm/models.py

@@ -20,7 +20,7 @@
 # 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 
 from django.db import models
-from django.db.models import F, Q, Avg
+from django.db.models import F, Q, Avg, Max
 from django.utils import timezone
 
 from django.core.urlresolvers import reverse
@@ -195,6 +195,45 @@ class Project(models.Model):
     def projectlayer_equivalent_set(self):
         return self.compatible_layerversions().filter(layer__name__in = [x.layercommit.layer.name for x in self.projectlayer_set.all()]).select_related("up_branch")
 
+    def get_available_machines(self):
+        """ Returns QuerySet of all Machines which are provided by the
+        Layers currently added to the Project """
+        queryset = Machine.objects.filter(layer_version__in=self.projectlayer_equivalent_set)
+        return queryset
+
+    def get_all_compatible_machines(self):
+        """ Returns QuerySet of all the compatible machines available to the
+        project including ones from Layers not currently added """
+        compatible_layers = self.compatible_layerversions()
+
+        queryset = Machine.objects.filter(layer_version__in=compatible_layers)
+        return queryset
+
+    def get_available_recipes(self):
+        """ Returns QuerySet of all Recipes which are provided by the Layers
+        currently added to the Project """
+        project_layers = self.projectlayer_equivalent_set()
+        queryset = Recipe.objects.filter(layer_version__in = project_layers)
+
+        # Copied from get_all_compatible_recipes
+        search_maxids = map(lambda i: i[0], list(queryset.values('name').distinct().annotate(max_id=Max('id')).values_list('max_id')))
+        queryset = queryset.filter(id__in=search_maxids).select_related('layer_version', 'layer_version__layer', 'layer_version__up_branch', 'layer_source')
+        # End copy
+
+        return queryset
+
+    def get_all_compatible_recipes(self):
+        """ Returns QuerySet of all the compatible Recipes available to the
+        project including ones from Layers not currently added """
+        compatible_layerversions = self.compatible_layerversions()
+        queryset = Recipe.objects.filter(layer_version__in = compatible_layerversions)
+
+        search_maxids = map(lambda i: i[0], list(queryset.values('name').distinct().annotate(max_id=Max('id')).values_list('max_id')))
+
+        queryset = queryset.filter(id__in=search_maxids).select_related('layer_version', 'layer_version__layer', 'layer_version__up_branch', 'layer_source')
+        return queryset
+
+
     def schedule_build(self):
         from bldcontrol.models import BuildRequest, BRTarget, BRLayer, BRVariable, BRBitbake
         br = BuildRequest.objects.create(project = self)