stricter range of validity for schema

tracim/views/core_api/schemas.py

 import marshmallow
 from marshmallow import post_load
 from marshmallow.validate import OneOf
+from marshmallow.validate import Range
 
 from tracim.lib.utils.utils import DATETIME_FORMAT
 from tracim.models.auth import Profile
 
 
 class UserIdPathSchema(marshmallow.Schema):
-    user_id = marshmallow.fields.Int(example=3, required=True)
+    user_id = marshmallow.fields.Int(
+        example=3,
+        required=True,
+        description='id of a valid user',
+        validate=Range(min=1, error="Value must be greater than 0"),
+    )
 
 
 class WorkspaceIdPathSchema(marshmallow.Schema):
-    workspace_id = marshmallow.fields.Int(example=4, required=True)
+    workspace_id = marshmallow.fields.Int(
+        example=4,
+        required=True,
+        description='id of a valid workspace',
+        validate=Range(min=1, error="Value must be greater than 0"),
+    )
 
 
 class ContentIdPathSchema(marshmallow.Schema):
-    content_id = marshmallow.fields.Int(example=6, required=True)
+    content_id = marshmallow.fields.Int(
+        example=6,
+        required=True,
+        description='id of a valid content',
+        validate=Range(min=1, error="Value must be greater than 0"),
+    )
 
 
 class WorkspaceAndContentIdPathSchema(
 class CommentsPathSchema(WorkspaceAndContentIdPathSchema):
     comment_id = marshmallow.fields.Int(
         example=6,
-        description='id of a comment related to content content_id',
-        required=True
+        description='id of a valid comment related to content content_id',
+        required=True,
+        validate=Range(min=1, error="Value must be greater than 0"),
     )
     @post_load
     def make_path_object(self, data):
                     ' If not set, then return all contents.'
                     ' If set to 0, then return root contents.'
                     ' If set to another value, return all contents'
-                    ' directly included in the folder parent_id'
+                    ' directly included in the folder parent_id',
+        validate=Range(min=0, error="Value must be positive or 0"),
     )
     show_archived = marshmallow.fields.Int(
         example=0,
         default=0,
         description='if set to 1, then show archived contents.'
-                    ' Default is 0 - hide archived content'
+                    ' Default is 0 - hide archived content',
+        validate=Range(min=0, max=1, error="Value must be 0 or 1"),
     )
     show_deleted = marshmallow.fields.Int(
         example=0,
         default=0,
         description='if set to 1, then show deleted contents.'
-                    ' Default is 0 - hide deleted content'
+                    ' Default is 0 - hide deleted content',
+        validate=Range(min=0, max=1, error="Value must be 0 or 1"),
     )
     show_active = marshmallow.fields.Int(
         example=1,
                     ' Note: active content are content '
                     'that is neither archived nor deleted. '
                     'The reason for this parameter to exist is for example '
-                    'to allow to show only archived documents'
+                    'to allow to show only archived documents',
+        validate=Range(min=0, max=1, error="Value must be 0 or 1"),
     )
 
     @post_load
 
 
 class WorkspaceDigestSchema(marshmallow.Schema):
-    workspace_id = marshmallow.fields.Int(example=4)
+    workspace_id = marshmallow.fields.Int(
+        example=4,
+        validate=Range(min=1, error="Value must be greater than 0"),
+    )
     slug = marshmallow.fields.String(example='intranet')
     label = marshmallow.fields.String(example='Intranet')
     sidebar_entries = marshmallow.fields.Nested(
         example='contributor',
         validate=OneOf(UserRoleInWorkspace.get_all_role_slug())
     )
-    user_id = marshmallow.fields.Int(example=3)
-    workspace_id = marshmallow.fields.Int(example=4)
+    user_id = marshmallow.fields.Int(
+        example=3,
+        validate=Range(min=1, error="Value must be greater than 0"),
+    )
+    workspace_id = marshmallow.fields.Int(
+        example=4,
+        validate=Range(min=1, error="Value must be greater than 0"),
+    )
     user = marshmallow.fields.Nested(
         UserSchema(only=('public_name', 'avatar_url'))
     )
         description='id of the new parent content id.',
         allow_none=True,
         required=True,
+        validate=Range(min=0, error="Value must be positive or 0"),
     )
     new_workspace_id = marshmallow.fields.Int(
         example=2,
         description='id of the new workspace id.',
-        required=True
+        required=True,
+        validate=Range(min=1, error="Value must be greater than 0"),
     )
 
     @post_load
 
 
 class ContentDigestSchema(marshmallow.Schema):
-    content_id = marshmallow.fields.Int(example=6)
+    content_id = marshmallow.fields.Int(
+        example=6,
+        validate=Range(min=1, error="Value must be greater than 0"),
+    )
     slug = marshmallow.fields.Str(example='intervention-report-12')
     parent_id = marshmallow.fields.Int(
         example=34,
         allow_none=True,
-        default=None
+        default=None,
+        validate=Range(min=0, error="Value must be positive or 0"),
     )
     workspace_id = marshmallow.fields.Int(
         example=19,
+        validate=Range(min=1, error="Value must be greater than 0"),
     )
     label = marshmallow.fields.Str(example='Intervention Report 12')
     content_type = marshmallow.fields.Str(
 
 
 class RevisionSchema(ContentDigestSchema):
-    comment_ids = marshmallow.fields.List(marshmallow.fields.Int(example=4))
-    revision_id = marshmallow.fields.Int(example=12)
+    comment_ids = marshmallow.fields.List(
+        marshmallow.fields.Int(
+            example=4,
+            validate=Range(min=1, error="Value must be greater than 0"),
+        )
+    )
+    revision_id = marshmallow.fields.Int(
+        example=12,
+        validate=Range(min=1, error="Value must be greater than 0"),
+    )
     created = marshmallow.fields.DateTime(
         format=DATETIME_FORMAT,
         description='Content creation date',
 
 
 class CommentSchema(marshmallow.Schema):
-    content_id = marshmallow.fields.Int(example=6)
-    parent_id = marshmallow.fields.Int(example=34)
+    content_id = marshmallow.fields.Int(
+        example=6,
+        validate=Range(min=1, error="Value must be greater than 0"),
+    )
+    parent_id = marshmallow.fields.Int(
+        example=34,
+        validate=Range(min=0, error="Value must be positive or 0"),
+    )
     raw_content = marshmallow.fields.String(
         example='<p>This is just an html comment !</p>'
     )