1 files changed, 16 insertions, 1 deletions
diff --git a/pydis_site/apps/api/models/bot/documentation_link.py b/pydis_site/apps/api/models/bot/documentation_link.py
index 2a0ce751..3dcc71fc 100644
--- a/pydis_site/apps/api/models/bot/documentation_link.py
+++ b/pydis_site/apps/api/models/bot/documentation_link.py
@@ -1,7 +1,20 @@
+from django.core.exceptions import ValidationError
+from django.core.validators import RegexValidator
 from django.db import models
 
 from pydis_site.apps.api.models.mixins import ModelReprMixin
 
+package_name_validator = RegexValidator(
+    regex=r"^[a-z0-9_]+$",
+    message="Package names can only consist of lowercase a-z letters, digits, and underscores."
+)
+
+
+def ends_with_slash_validator(string: str) -> None:
+    """Raise a ValidationError if `string` does not end with a slash."""
+    if not string.endswith("/"):
+        raise ValidationError("The entered URL must end with a slash.")
+
 
 class DocumentationLink(ModelReprMixin, models.Model):
     """A documentation link used by the `!docs` command of the bot."""
@@ -9,13 +22,15 @@ class DocumentationLink(ModelReprMixin, models.Model):
     package = models.CharField(
         primary_key=True,
         max_length=50,
+        validators=(package_name_validator,),
         help_text="The Python package name that this documentation link belongs to."
     )
     base_url = models.URLField(
         help_text=(
             "The base URL from which documentation will be available for this project. "
             "Used to generate links to various symbols within this package."
-        )
+        ),
+        validators=(ends_with_slash_validator,)
     )
     inventory_url = models.URLField(
         help_text="The URL at which the Sphinx inventory is available for this package."