Merge pull request #53 from OpenDataServices/26-extend-jsonschema

processor.cove: Extend jsonschema validation with our own functions
OpenDataServices · Mar 2, 2021 · d8cc5f7 · d8cc5f7
2 parents 8506f87 + 665a255
commit d8cc5f7
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diff --git a/standards_lab/processor/cove.py b/standards_lab/processor/cove.py
@@ -1,6 +1,7 @@
 from libcove.lib.common import (
     common_checks_context,
     SchemaJsonMixin,
+    validator,
 )
 
 from decimal import Decimal
@@ -13,6 +14,11 @@
 from rq.job import Job
 from rq.exceptions import NoSuchJobError
 
+from .extra_validator_funcs import patch_validator
+
+
+patch_validator(validator)
+
 
 def start(project):
     schema_name = project["rootSchema"]

diff --git a/standards_lab/processor/extra_validator_funcs.py b/standards_lab/processor/extra_validator_funcs.py
@@ -0,0 +1,14 @@
+from jsonschema.exceptions import ValidationError
+
+
+def startswith(validator, schema_value, instance, schema_parent_value):
+    if not isinstance(instance, str):
+        return
+    if not instance.startswith(schema_value):
+        yield ValidationError("Should start with '{}'".format(schema_value))
+
+
+def patch_validator(validator):
+    validator.VALIDATORS.update({
+        "startswith": startswith
+    })