From b9bf7cce896a4886f77b2162042a6fb676463b86 Mon Sep 17 00:00:00 2001
From: Carl Meyer <carl@oddbird.net>
Date: Fri, 2 Mar 2012 22:32:22 +0000
Subject: [PATCH] Fixed #15169 -- Added conversion of 0/1 to False/True for
 MySQL GIS backend. Thanks zmsmith for report, and Ramiro for draft patch and
 review.

git-svn-id: http://code.djangoproject.com/svn/django/trunk@17632 bcc190cf-cafb-0310-a4f2-bffc1f526a37
---
 .../contrib/gis/db/backends/mysql/compiler.py | 32 +++++++++++++++++++
 .../gis/db/backends/mysql/operations.py       |  2 +-
 django/contrib/gis/tests/geoapp/models.py     |  4 +++
 .../contrib/gis/tests/geoapp/test_regress.py  | 16 +++++++++-
 4 files changed, 52 insertions(+), 2 deletions(-)
 create mode 100644 django/contrib/gis/db/backends/mysql/compiler.py

diff --git a/django/contrib/gis/db/backends/mysql/compiler.py b/django/contrib/gis/db/backends/mysql/compiler.py
new file mode 100644
index 0000000000..7079db9f6a
--- /dev/null
+++ b/django/contrib/gis/db/backends/mysql/compiler.py
@@ -0,0 +1,32 @@
+from django.contrib.gis.db.models.sql.compiler import GeoSQLCompiler as BaseGeoSQLCompiler
+from django.db.backends.mysql import compiler
+
+SQLCompiler = compiler.SQLCompiler
+
+class GeoSQLCompiler(BaseGeoSQLCompiler, SQLCompiler):
+    def resolve_columns(self, row, fields=()):
+        """
+        Integrate the cases handled both by the base GeoSQLCompiler and the
+        main MySQL compiler (converting 0/1 to True/False for boolean fields).
+
+        Refs #15169.
+
+        """
+        row = BaseGeoSQLCompiler.resolve_columns(self, row, fields)
+        return SQLCompiler.resolve_columns(self, row, fields)
+
+
+class SQLInsertCompiler(compiler.SQLInsertCompiler, GeoSQLCompiler):
+    pass
+
+class SQLDeleteCompiler(compiler.SQLDeleteCompiler, GeoSQLCompiler):
+    pass
+
+class SQLUpdateCompiler(compiler.SQLUpdateCompiler, GeoSQLCompiler):
+    pass
+
+class SQLAggregateCompiler(compiler.SQLAggregateCompiler, GeoSQLCompiler):
+    pass
+
+class SQLDateCompiler(compiler.SQLDateCompiler, GeoSQLCompiler):
+    pass
diff --git a/django/contrib/gis/db/backends/mysql/operations.py b/django/contrib/gis/db/backends/mysql/operations.py
index 1653636dd4..c0e5aa6691 100644
--- a/django/contrib/gis/db/backends/mysql/operations.py
+++ b/django/contrib/gis/db/backends/mysql/operations.py
@@ -5,7 +5,7 @@ from django.contrib.gis.db.backends.base import BaseSpatialOperations
 
 class MySQLOperations(DatabaseOperations, BaseSpatialOperations):
 
-    compiler_module = 'django.contrib.gis.db.models.sql.compiler'
+    compiler_module = 'django.contrib.gis.db.backends.mysql.compiler'
     mysql = True
     name = 'mysql'
     select = 'AsText(%s)'
diff --git a/django/contrib/gis/tests/geoapp/models.py b/django/contrib/gis/tests/geoapp/models.py
index 1ac830953a..79061e1cfc 100644
--- a/django/contrib/gis/tests/geoapp/models.py
+++ b/django/contrib/gis/tests/geoapp/models.py
@@ -34,6 +34,10 @@ class Track(models.Model):
     objects = models.GeoManager()
     def __unicode__(self): return self.name
 
+class Truth(models.Model):
+    val = models.BooleanField()
+    objects = models.GeoManager()
+
 if not spatialite:
     class Feature(models.Model):
         name = models.CharField(max_length=20)
diff --git a/django/contrib/gis/tests/geoapp/test_regress.py b/django/contrib/gis/tests/geoapp/test_regress.py
index 19f31e66be..a9d802d8f1 100644
--- a/django/contrib/gis/tests/geoapp/test_regress.py
+++ b/django/contrib/gis/tests/geoapp/test_regress.py
@@ -7,7 +7,7 @@ from django.contrib.gis.shortcuts import render_to_kmz
 from django.db.models import Count
 from django.test import TestCase
 
-from .models import City, PennsylvaniaCity, State
+from .models import City, PennsylvaniaCity, State, Truth
 
 
 class GeoRegressionTests(TestCase):
@@ -64,3 +64,17 @@ class GeoRegressionTests(TestCase):
         "Regression for #16409. Make sure defer() and only() work with annotate()"
         self.assertIsInstance(list(City.objects.annotate(Count('point')).defer('name')), list)
         self.assertIsInstance(list(City.objects.annotate(Count('point')).only('name')), list)
+
+    def test07_boolean_conversion(self):
+        "Testing Boolean value conversion with the spatial backend, see #15169."
+        t1 = Truth.objects.create(val=True)
+        t2 = Truth.objects.create(val=False)
+
+        val1 = Truth.objects.get(pk=1).val
+        val2 = Truth.objects.get(pk=2).val
+        # verify types -- should't be 0/1
+        self.assertIsInstance(val1, bool)
+        self.assertIsInstance(val2, bool)
+        # verify values
+        self.assertEqual(val1, True)
+        self.assertEqual(val2, False)