rrs: Add support for Recipe maintainership history

Now can you get maintainers based on Milestones.

Feature changes,

	rrs/models.py: Add RecipeMaintainerHistory to store maintainer updates.
	rrs/admin.py: Add admin site for RecipeMaintainerHistory.

Adapt changes,

Now you need to specify RecipeMaintainerHistory to get RecipeMaintainer,
changes into rrs/view.py.

These set of changes are incompatible with the previous version you need
to do initial setup described in README.rrs.

Signed-off-by: Aníbal Limón <anibal.limon@linux.intel.com>

1 files changed, 55 insertions, 7 deletions

diff --git a/rrs/models.py b/rrs/models.py
index abeaccbdbf..5c9bcc0b19 100644
--- a/rrs/models.py
+++ b/rrs/models.py
@@ -59,19 +59,67 @@ class Maintainer(models.Model):
     name = models.CharField(max_length=255, unique=True)
     email = models.CharField(max_length=255, blank=True)
 
+    """
+        Create maintainer if no exist else update email.
+        Return Maintainer.
+    """
+    @staticmethod
+    def create_or_update(name, email):
+        try:
+            m = Maintainer.objects.get(name = name)
+            m.email = email
+        except Maintainer.DoesNotExist:
+            m = Maintainer()
+            m.name = name
+            m.email = email
+
+        m.save()
+
+        return m
+
     class Meta:
         ordering = ["name"]
 
     def __unicode__(self):
         return "%s <%s>" % (self.name, self.email)
 
+class RecipeMaintainerHistory(models.Model):
+    title = models.CharField(max_length=255, blank=True)
+    date = models.DateTimeField()
+    author = models.ForeignKey(Maintainer)
+    sha1 = models.CharField(max_length=64, unique=True)
+
+    @staticmethod
+    def get_last():
+        rmh_qry = RecipeMaintainerHistory.objects.filter().order_by('-date')
+
+        if rmh_qry:
+            return rmh_qry[0]
+        else:
+            return None
+
+    @staticmethod
+    def get_by_end_date(end_date):
+        rmh_qry = RecipeMaintainerHistory.objects.filter(
+                date__lte = end_date).order_by('-date')
+
+        if rmh_qry:
+            return rmh_qry[0]
+        else:
+            return RecipeMaintainerHistory.objects.filter().order_by('date')[0]
+
+    def __unicode__(self):
+        return "%s: %s, %s" % (self.date, self.author.name, self.sha1[:10])
+
 class RecipeMaintainer(models.Model):
     recipe = models.ForeignKey(Recipe)
-    maintainer =  models.ForeignKey(Maintainer)
+    maintainer = models.ForeignKey(Maintainer)
+    history = models.ForeignKey(RecipeMaintainerHistory)
 
     @staticmethod
-    def get_maintainer_by_recipe(recipe):
-        recipe_maintainer = RecipeMaintainer.objects.filter(recipe = recipe)[0]
+    def get_maintainer_by_recipe_and_history(recipe, history):
+        recipe_maintainer = RecipeMaintainer.objects.filter(recipe = recipe,
+                history = history)[0]
         return recipe_maintainer.maintainer
 
     def __unicode__(self):
@@ -85,7 +133,7 @@ class RecipeUpstreamHistory(models.Model):
     @staticmethod
     def get_last_by_date_range(start, end):
         history = RecipeUpstreamHistory.objects.filter(start_date__gte = start, 
-                start_date__lte = end).order_by('-id')
+                start_date__lte = end).order_by('-start_date')
 
         if history:
             return history[0]
@@ -94,7 +142,7 @@ class RecipeUpstreamHistory(models.Model):
 
     @staticmethod
     def get_last():
-        history = RecipeUpstreamHistory.objects.filter().order_by('-id')
+        history = RecipeUpstreamHistory.objects.filter().order_by('-start_date')
 
         if history:
             return history[0]
@@ -121,7 +169,7 @@ class RecipeUpstream(models.Model):
     RECIPE_UPSTREAM_TYPE_CHOICES_DICT = dict(RECIPE_UPSTREAM_TYPE_CHOICES)
 
     recipe = models.ForeignKey(Recipe)
-    history = models.ForeignKey(RecipeUpstreamHistory, null=True)
+    history = models.ForeignKey(RecipeUpstreamHistory)
     version = models.CharField(max_length=100, blank=True)
     type = models.CharField(max_length=1, choices=RECIPE_UPSTREAM_TYPE_CHOICES, blank=True)
     status =  models.CharField(max_length=1, choices=RECIPE_UPSTREAM_STATUS_CHOICES, blank=True)
@@ -165,7 +213,7 @@ class RecipeDistro(models.Model):
 
 class RecipeUpgrade(models.Model):
     recipe = models.ForeignKey(Recipe)
-    maintainer = models.ForeignKey(Maintainer, blank=True, null=True)
+    maintainer = models.ForeignKey(Maintainer, blank=True)
     sha1 = models.CharField(max_length=40, blank=True)
     title = models.CharField(max_length=1024, blank=True)
     version = models.CharField(max_length=100, blank=True)