prompt: You will be provided with a partial code base and an issue statement explaining a problem to resolve.
  <issue>
  Add OpenAPI Specification for /databases/ endpoint 
  ## Problem
  In order to ensure the accuracy of the specs generated by drf-spectacular for /databases/ endpoint , we will generate an OpenAPI Specification specifically for this endpoint. This will allow us to verify its correctness by comparing it with the existing test cases and the DRF browsable API page.
  
  ## Proposed solution
  * Implement custom preprocessing hook function  to filter out all endpoints except for the /databases/ endpoint.The hook function selectively retains only the endpoint paths that match the /datafiles/ 
  * Configure the PREPROCESSING_HOOKS setting with the custom hook function, we ensure that only the /datafiles/ endpoint is considered during the OpenAPI specification generation process.
  * Finally, generate the spec file using the _./manage.py spectacular --color --file schema.yml_ command
  
  
  
  </issue>
  <code>
  [start of config/settings/openapi.py]
  1 def custom_preprocessing_hook(endpoints):
  2     filtered = []
  3     for (path, path_regex, method, callback) in endpoints:
  4         # Remove all but DRF API endpoints
  5         if path.startswith("/api/db/v0/data_files/"):
  6             filtered.append((path, path_regex, method, callback))
  7     return filtered
  8 
  9 
  10 def remove_url_prefix_hook(result, **kwargs):
  11     # Remove namespace and version URL prefix from the operation Id of the generated API schema
  12     for path, path_info in result['paths'].items():
  13         for method, operation in path_info.items():
  14             operation_id = operation.get('operationId')
  15             if operation_id:
  16                 if path.startswith('/api/db/v0/'):
  17                     operation['operationId'] = operation_id.replace('db_v0_', '')
  18                 elif path.startswith('/api/ui/v0/'):
  19                     operation['operationId'] = operation_id.replace('ui_v0_', '')
  20 
  21     return result
  22
  [end of config/settings/openapi.py]
  </code>
  
  I need you to solve this issue by generating a single patch file that I can apply directly to this repository using git apply. Please respond with a single patch file in the following format.
  <patch>
  diff --git a/file.py b/file.py
  --- a/file.py
  +++ b/file.py
  @@ -1,27 +1,35 @@
   def euclidean(a, b):
  -    while b:
  -        a, b = b, a % b
  -    return a
  +    if b == 0:
  +        return a
  +    return euclidean(b, a % b)
   
   
   def bresenham(x0, y0, x1, y1):
       points = []
       dx = abs(x1 - x0)
       dy = abs(y1 - y0)
  -    sx = 1 if x0 < x1 else -1
  -    sy = 1 if y0 < y1 else -1
  -    err = dx - dy
  +    x, y = x0, y0
  +    sx = -1 if x0 > x1 else 1
  +    sy = -1 if y0 > y1 else 1
   
  -    while True:
  -        points.append((x0, y0))
  -        if x0 == x1 and y0 == y1:
  -            break
  -        e2 = 2 * err
  -        if e2 > -dy:
  -            err -= dy
  -            x0 += sx
  -        if e2 < dx:
  -            err += dx
  -            y0 += sy
  +    if dx > dy:
  +        err = dx / 2.0
  +        while x != x1:
  +            points.append((x, y))
  +            err -= dy
  +            if err < 0:
  +                y += sy
  +                err += dx
  +            x += sx
  +    else:
  +        err = dy / 2.0
  +        while y != y1:
  +            points.append((x, y))
  +            err -= dx
  +            if err < 0:
  +                x += sx
  +                err += dy
  +            y += sy
  +
  +    points.append((x, y))
       return points
  
  </patch>
golden_diff: diff --git a/config/settings/openapi.py b/config/settings/openapi.py
  --- a/config/settings/openapi.py
  +++ b/config/settings/openapi.py
  @@ -2,7 +2,7 @@
       filtered = []
       for (path, path_regex, method, callback) in endpoints:
           # Remove all but DRF API endpoints
  -        if path.startswith("/api/db/v0/data_files/"):
  +        if path.startswith("/api/db/v0/databases/") or path.startswith("/api/db/v0/data_files/"):
               filtered.append((path, path_regex, method, callback))
       return filtered
  
verification_info: {"golden_diff": "diff --git a/config/settings/openapi.py b/config/settings/openapi.py\n--- a/config/settings/openapi.py\n+++ b/config/settings/openapi.py\n@@ -2,7 +2,7 @@\n     filtered = []\n     for (path, path_regex, method, callback) in endpoints:\n         # Remove all but DRF API endpoints\n-        if path.startswith(\"/api/db/v0/data_files/\"):\n+        if path.startswith(\"/api/db/v0/databases/\") or path.startswith(\"/api/db/v0/data_files/\"):\n             filtered.append((path, path_regex, method, callback))\n     return filtered\n", "issue": "Add OpenAPI Specification for /databases/ endpoint \n## Problem\r\nIn order to ensure the accuracy of the specs generated by drf-spectacular for /databases/ endpoint , we will generate an OpenAPI Specification specifically for this endpoint. This will allow us to verify its correctness by comparing it with the existing test cases and the DRF browsable API page.\r\n\r\n## Proposed solution\r\n* Implement custom preprocessing hook function  to filter out all endpoints except for the /databases/ endpoint.The hook function selectively retains only the endpoint paths that match the /datafiles/ \r\n* Configure the PREPROCESSING_HOOKS setting with the custom hook function, we ensure that only the /datafiles/ endpoint is considered during the OpenAPI specification generation process.\r\n* Finally, generate the spec file using the _./manage.py spectacular --color --file schema.yml_ command\r\n\r\n\n", "before_files": [{"content": "def custom_preprocessing_hook(endpoints):\n    filtered = []\n    for (path, path_regex, method, callback) in endpoints:\n        # Remove all but DRF API endpoints\n        if path.startswith(\"/api/db/v0/data_files/\"):\n            filtered.append((path, path_regex, method, callback))\n    return filtered\n\n\ndef remove_url_prefix_hook(result, **kwargs):\n    # Remove namespace and version URL prefix from the operation Id of the generated API schema\n    for path, path_info in result['paths'].items():\n        for method, operation in path_info.items():\n            operation_id = operation.get('operationId')\n            if operation_id:\n                if path.startswith('/api/db/v0/'):\n                    operation['operationId'] = operation_id.replace('db_v0_', '')\n                elif path.startswith('/api/ui/v0/'):\n                    operation['operationId'] = operation_id.replace('ui_v0_', '')\n\n    return result\n", "path": "config/settings/openapi.py"}]}