Avoid explicit import

Signed-off-by: Michal Čihař <michal@cihar.com>

weblate/trans/models/source.py

@@ -21,8 +21,6 @@
 from django.db import models
 from django.utils.translation import ugettext_lazy as _
 
-from weblate.trans.models.subproject import SubProject
-
 PRIORITY_CHOICES = (
     (60, _('Very high')),
     (80, _('High')),
@@ -34,7 +32,7 @@ PRIORITY_CHOICES = (
 
 class Source(models.Model):
     checksum = models.CharField(max_length=40)
-    subproject = models.ForeignKey(SubProject)
+    subproject = models.ForeignKey('SubProject')
     timestamp = models.DateTimeField(auto_now_add=True)
     priority = models.IntegerField(
         default=100,

weblate/trans/models/unitdata.py

@@ -24,7 +24,6 @@ from django.contrib.auth.models import User
 from weblate.lang.models import Language
 from weblate.trans.checks import CHECKS
 from weblate.trans.models.unit import Unit
-from weblate.trans.models.project import Project
 from weblate.trans.models.changes import Change
 from weblate.accounts.avatar import get_user_display
 
@@ -103,7 +102,7 @@ class Suggestion(models.Model, RelatedUnitMixin):
     contentsum = models.CharField(max_length=40, db_index=True)
     target = models.TextField()
     user = models.ForeignKey(User, null=True, blank=True)
-    project = models.ForeignKey(Project)
+    project = models.ForeignKey('Project')
     language = models.ForeignKey(Language)
 
     votes = models.ManyToManyField(
@@ -265,7 +264,7 @@ class Comment(models.Model, RelatedUnitMixin):
     contentsum = models.CharField(max_length=40, db_index=True)
     comment = models.TextField()
     user = models.ForeignKey(User, null=True, blank=True)
-    project = models.ForeignKey(Project)
+    project = models.ForeignKey('Project')
     language = models.ForeignKey(Language, null=True, blank=True)
     timestamp = models.DateTimeField(auto_now_add=True, db_index=True)
 
@@ -295,7 +294,7 @@ CHECK_CHOICES = [(x, CHECKS[x].name) for x in CHECKS]
 
 class Check(models.Model, RelatedUnitMixin):
     contentsum = models.CharField(max_length=40, db_index=True)
-    project = models.ForeignKey(Project)
+    project = models.ForeignKey('Project')
     language = models.ForeignKey(Language, null=True, blank=True)
     check = models.CharField(max_length=20, choices=CHECK_CHOICES)
     ignore = models.BooleanField(db_index=True, default=False)