checkpoint

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checkpoint.json

@@ -1,26 +1,33 @@
 {
-  "timestamp": "2026-03-16T05:32:37.550875Z",
-  "current_node": "setup",
+  "timestamp": "2026-03-16T05:35:28.416199Z",
+  "current_node": "solve",
   "completed_nodes": [
     "start",
-    "setup"
+    "setup",
+    "solve"
   ],
   "node_retries": {
     "setup": 1,
+    "solve": 1,
     "start": 1
   },
   "context_values": {
+    "thread.setup.current_node": "solve",
     "graph.rankdir": "LR",
+    "internal.retry_count.solve": 1,
     "command.stderr": "",
-    "failure_signature": "setup|deterministic|script failed with exit code: <n> ## stdout fatal: destination path '.' already exists and is not an empty directory.",
-    "current_node": "setup",
-    "internal.thread_id": "start",
-    "outcome": "fail",
+    "last_response": "All 18 tests pass. Here's a summary of the changes made:\n\n## Summary\n\nThe issue is that Django's `models.E028` check unconditionally raises an `Error` when multiple models share the same `db_table`, e",
+    "response.solve": "All 18 tests pass. Here's a summary of the changes made:\n\n## Summary\n\nThe issue is that Django's `models.E028` check unconditionally raises an `Error` when multiple models share the same `db_table`, even when `DATABASE_ROUTERS` is configured — which is a legitimate setup where different models with the same table name can exist in different databases.\n\n### Changes\n\n**1. `django/core/checks/model_checks.py`** — The core fix:\n- Added imports for `settings` and `Warning`\n- When `settings.DATABASE_ROUTERS` is non-empty, the duplicate `db_table` check now emits a `Warning` with id `models.W035` instead of an `Error` with id `models.E028`\n- When there are no database routers, the behavior remains unchanged (still an `Error` with `models.E028`)\n\n**2. `tests/check_framework/test_model_checks.py`** — Added tests:\n- `test_collision_in_same_app_database_routers` — verifies Warning is emitted (not Error) when DATABASE_ROUTERS is set\n- `test_collision_across_apps_database_routers` — same for cross-app collisions\n\n**3. `tests/check_framework/routers.py`** — New minimal test router class needed by the test overrides.",
+    "last_stage": "solve",
+    "failure_signature": "",
+    "current_node": "solve",
+    "internal.thread_id": "setup",
+    "outcome": "success",
     "command.output": "fatal: destination path '.' already exists and is not an empty directory.\n",
-    "current.preamble": "Goal: Django throws error when different apps with different models have the same name table name.\nDescription\n\t\nError message:\ntable_name: (models.E028) db_table 'table_name' is used by multiple models: base.ModelName, app2.ModelName.\nWe have a Base app that points to a central database and that has its own tables. We then have multiple Apps that talk to their own databases. Some share the same table names.\nWe have used this setup for a while, but after upgrading to Django 2.2 we're getting an error saying we're not allowed 2 apps, with 2 different models to have the same table names. \nIs this correct behavior? We've had to roll back to Django 2.0 for now.\n\n\n\n## Additional Context\n\nRegression in [5d25804eaf81795c7d457e5a2a9f0b9b0989136c], ticket #20098. My opinion is that as soon as the project has a non-empty DATABASE_ROUTERS setting, the error should be turned into a warning, as it becomes difficult to say for sure that it's an error. And then the project can add the warning in SILENCED_SYSTEM_CHECKS.\nI agree with your opinion. Assigning to myself, patch on its way Replying to Claude Paroz: Regression in [5d25804eaf81795c7d457e5a2a9f0b9b0989136c], ticket #20098. My opinion is that as soon as the project has a non-empty DATABASE_ROUTERS setting, the error should be turned into a warning, as it becomes difficult to say for sure that it's an error. And then the project can add the warning in SILENCED_SYSTEM_CHECKS.\n",
+    "current.preamble": "Goal: Django throws error when different apps with different models have the same name table name.\nDescription\n\t\nError message:\ntable_name: (models.E028) db_table 'table_name' is used by multiple models: base.ModelName, app2.ModelName.\nWe have a Base app that points to a central database and that has its own tables. We then have multiple Apps that talk to their own databases. Some share the same table names.\nWe have used this setup for a while, but after upgrading to Django 2.2 we're getting an error saying we're not allowed 2 apps, with 2 different models to have the same table names. \nIs this correct behavior? We've had to roll back to Django 2.0 for now.\n\n\n\n## Additional Context\n\nRegression in [5d25804eaf81795c7d457e5a2a9f0b9b0989136c], ticket #20098. My opinion is that as soon as the project has a non-empty DATABASE_ROUTERS setting, the error should be turned into a warning, as it becomes difficult to say for sure that it's an error. And then the project can add the warning in SILENCED_SYSTEM_CHECKS.\nI agree with your opinion. Assigning to myself, patch on its way Replying to Claude Paroz: Regression in [5d25804eaf81795c7d457e5a2a9f0b9b0989136c], ticket #20098. My opinion is that as soon as the project has a non-empty DATABASE_ROUTERS setting, the error should be turned into a warning, as it becomes difficult to say for sure that it's an error. And then the project can add the warning in SILENCED_SYSTEM_CHECKS.\n\n## Completed stages\n- **setup**: fail\n  - Script: `git clone https://github.com/django/django.git . && git checkout 65e86948b80262574058a94ccaae3a9b59c3faea && python -m pip install -e .`\n  - Stdout:\n    ```\n    fatal: destination path '.' already exists and is not an empty directory.\n    ```\n  - Stderr: (empty)\n\n## Context\n- failure_class: deterministic\n- failure_signature: setup|deterministic|script failed with exit code: <n> ## stdout fatal: destination path '.' already exists and is not an empty directory.\n",
     "internal.fidelity": "compact",
     "graph.goal": "Django throws error when different apps with different models have the same name table name.\nDescription\n\t\nError message:\ntable_name: (models.E028) db_table 'table_name' is used by multiple models: base.ModelName, app2.ModelName.\nWe have a Base app that points to a central database and that has its own tables. We then have multiple Apps that talk to their own databases. Some share the same table names.\nWe have used this setup for a while, but after upgrading to Django 2.2 we're getting an error saying we're not allowed 2 apps, with 2 different models to have the same table names. \nIs this correct behavior? We've had to roll back to Django 2.0 for now.\n\n\n\n## Additional Context\n\nRegression in [5d25804eaf81795c7d457e5a2a9f0b9b0989136c], ticket #20098. My opinion is that as soon as the project has a non-empty DATABASE_ROUTERS setting, the error should be turned into a warning, as it becomes difficult to say for sure that it's an error. And then the project can add the warning in SILENCED_SYSTEM_CHECKS.\nI agree with your opinion. Assigning to myself, patch on its way Replying to Claude Paroz: Regression in [5d25804eaf81795c7d457e5a2a9f0b9b0989136c], ticket #20098. My opinion is that as soon as the project has a non-empty DATABASE_ROUTERS setting, the error should be turned into a warning, as it becomes difficult to say for sure that it's an error. And then the project can add the warning in SILENCED_SYSTEM_CHECKS.",
-    "failure_class": "deterministic",
+    "failure_class": "",
     "internal.run_id": "01KKTJ3AFDZYVGTH93YJA90CT3",
     "internal.node_visit_count": 1,
     "internal.retry_count.setup": 1,
@@ -44,13 +51,38 @@
         "failure_class": "deterministic"
       },
       "duration_ms": 81
+    },
+    "solve": {
+      "status": "success",
+      "context_updates": {
+        "last_response": "All 18 tests pass. Here's a summary of the changes made:\n\n## Summary\n\nThe issue is that Django's `models.E028` check unconditionally raises an `Error` when multiple models share the same `db_table`, e",
+        "last_stage": "solve",
+        "response.solve": "All 18 tests pass. Here's a summary of the changes made:\n\n## Summary\n\nThe issue is that Django's `models.E028` check unconditionally raises an `Error` when multiple models share the same `db_table`, even when `DATABASE_ROUTERS` is configured — which is a legitimate setup where different models with the same table name can exist in different databases.\n\n### Changes\n\n**1. `django/core/checks/model_checks.py`** — The core fix:\n- Added imports for `settings` and `Warning`\n- When `settings.DATABASE_ROUTERS` is non-empty, the duplicate `db_table` check now emits a `Warning` with id `models.W035` instead of an `Error` with id `models.E028`\n- When there are no database routers, the behavior remains unchanged (still an `Error` with `models.E028`)\n\n**2. `tests/check_framework/test_model_checks.py`** — Added tests:\n- `test_collision_in_same_app_database_routers` — verifies Warning is emitted (not Error) when DATABASE_ROUTERS is set\n- `test_collision_across_apps_database_routers` — same for cross-app collisions\n\n**3. `tests/check_framework/routers.py`** — New minimal test router class needed by the test overrides."
+      },
+      "notes": "Stage completed: solve",
+      "usage": {
+        "model": "claude-opus-4-6",
+        "input_tokens": 24206,
+        "output_tokens": 5556,
+        "cache_read_tokens": 524820,
+        "cache_write_tokens": 27839,
+        "reasoning_tokens": 110,
+        "cost": 0.77979
+      },
+      "files_touched": [
+        "/tmp/django/django/core/checks/model_checks.py",
+        "/tmp/django/tests/check_framework/routers.py",
+        "/tmp/django/tests/check_framework/test_model_checks.py"
+      ],
+      "duration_ms": 167852
     }
   },
-  "next_node_id": "solve",
+  "next_node_id": "extract_patch",
   "loop_failure_signatures": {
     "setup|deterministic|script failed with exit code: <n> ## stdout fatal: destination path '.' already exists and is not an empty directory.": 1
   },
   "node_visits": {
+    "solve": 1,
     "setup": 1,
     "start": 1
   }

nodes/solve/prompt.md

@@ -0,0 +1,47 @@
+Goal: Django throws error when different apps with different models have the same name table name.
+Description
+	
+Error message:
+table_name: (models.E028) db_table 'table_name' is used by multiple models: base.ModelName, app2.ModelName.
+We have a Base app that points to a central database and that has its own tables. We then have multiple Apps that talk to their own databases. Some share the same table names.
+We have used this setup for a while, but after upgrading to Django 2.2 we're getting an error saying we're not allowed 2 apps, with 2 different models to have the same table names. 
+Is this correct behavior? We've had to roll back to Django 2.0 for now.
+
+
+
+## Additional Context
+
+Regression in [5d25804eaf81795c7d457e5a2a9f0b9b0989136c], ticket #20098. My opinion is that as soon as the project has a non-empty DATABASE_ROUTERS setting, the error should be turned into a warning, as it becomes difficult to say for sure that it's an error. And then the project can add the warning in SILENCED_SYSTEM_CHECKS.
+I agree with your opinion. Assigning to myself, patch on its way Replying to Claude Paroz: Regression in [5d25804eaf81795c7d457e5a2a9f0b9b0989136c], ticket #20098. My opinion is that as soon as the project has a non-empty DATABASE_ROUTERS setting, the error should be turned into a warning, as it becomes difficult to say for sure that it's an error. And then the project can add the warning in SILENCED_SYSTEM_CHECKS.
+
+## Completed stages
+- **setup**: fail
+  - Script: `git clone https://github.com/django/django.git . && git checkout 65e86948b80262574058a94ccaae3a9b59c3faea && python -m pip install -e .`
+  - Stdout:
+    ```
+    fatal: destination path '.' already exists and is not an empty directory.
+    ```
+  - Stderr: (empty)
+
+## Context
+- failure_class: deterministic
+- failure_signature: setup|deterministic|script failed with exit code: <n> ## stdout fatal: destination path '.' already exists and is not an empty directory.
+
+
+Fix this GitHub issue in the repository. Make the minimal code change needed.
+
+Django throws error when different apps with different models have the same name table name.
+Description
+	
+Error message:
+table_name: (models.E028) db_table 'table_name' is used by multiple models: base.ModelName, app2.ModelName.
+We have a Base app that points to a central database and that has its own tables. We then have multiple Apps that talk to their own databases. Some share the same table names.
+We have used this setup for a while, but after upgrading to Django 2.2 we're getting an error saying we're not allowed 2 apps, with 2 different models to have the same table names. 
+Is this correct behavior? We've had to roll back to Django 2.0 for now.
+
+
+
+## Additional Context
+
+Regression in [5d25804eaf81795c7d457e5a2a9f0b9b0989136c], ticket #20098. My opinion is that as soon as the project has a non-empty DATABASE_ROUTERS setting, the error should be turned into a warning, as it becomes difficult to say for sure that it's an error. And then the project can add the warning in SILENCED_SYSTEM_CHECKS.
+I agree with your opinion. Assigning to myself, patch on its way Replying to Claude Paroz: Regression in [5d25804eaf81795c7d457e5a2a9f0b9b0989136c], ticket #20098. My opinion is that as soon as the project has a non-empty DATABASE_ROUTERS setting, the error should be turned into a warning, as it becomes difficult to say for sure that it's an error. And then the project can add the warning in SILENCED_SYSTEM_CHECKS.

nodes/solve/provider_used.json

@@ -0,0 +1,5 @@
+{
+  "mode": "agent",
+  "provider": "anthropic",
+  "model": "claude-opus-4-6"
+}

nodes/solve/response.md

@@ -0,0 +1,18 @@
+All 18 tests pass. Here's a summary of the changes made:
+
+## Summary
+
+The issue is that Django's `models.E028` check unconditionally raises an `Error` when multiple models share the same `db_table`, even when `DATABASE_ROUTERS` is configured — which is a legitimate setup where different models with the same table name can exist in different databases.
+
+### Changes
+
+**1. `django/core/checks/model_checks.py`** — The core fix:
+- Added imports for `settings` and `Warning`
+- When `settings.DATABASE_ROUTERS` is non-empty, the duplicate `db_table` check now emits a `Warning` with id `models.W035` instead of an `Error` with id `models.E028`
+- When there are no database routers, the behavior remains unchanged (still an `Error` with `models.E028`)
+
+**2. `tests/check_framework/test_model_checks.py`** — Added tests:
+- `test_collision_in_same_app_database_routers` — verifies Warning is emitted (not Error) when DATABASE_ROUTERS is set
+- `test_collision_across_apps_database_routers` — same for cross-app collisions
+
+**3. `tests/check_framework/routers.py`** — New minimal test router class needed by the test overrides.

nodes/solve/status.json

@@ -0,0 +1,6 @@
+{
+  "status": "success",
+  "notes": "Stage completed: solve",
+  "failure_reason": null,
+  "timestamp": "2026-03-16T05:35:28.415082+00:00"
+}