init

spider/validator/exceptions.py

@@ -0,0 +1,69 @@
+# -*- coding: utf-8 -*-
+from __future__ import unicode_literals
+import six
+from .utils import force_text, force_str
+from .translation import gettext as _
+
+
+def _flat_error_detail(detail):
+    if isinstance(detail, list):
+        return [_flat_error_detail(item) for item in detail]
+    elif isinstance(detail, dict):
+        return {
+            key: _flat_error_detail(value)
+            for key, value in six.iteritems(detail)
+        }
+    else:
+        return force_text(detail)
+
+
+class BaseValidationError(Exception):
+
+    default_detail = _('Base validation error')
+    default_code = _('error')
+
+    def __init__(self, detail=None, code=None):
+        """
+        :param detail: `detail` maybe a string, a dict or a list.
+        :param code: error code, it not used for now.
+        """
+        if detail is None:
+            detail = self.default_detail
+        if code is None:
+            code = self.default_code
+
+        self.detail = _flat_error_detail(detail)
+        self.code = code
+
+    def get_detail(self):
+        return self.detail
+
+    def __str__(self):
+        return force_str(self.detail)
+
+    def __unicode__(self):
+        return force_text(self.detail)
+
+    def __repr__(self):
+        detail = self.detail
+        if len(detail) > 103:
+            detail = detail[:100] + '...'
+        return '{0}(detail={1!r})'.format(self.__class__.__name__, detail)
+
+
+class FieldRequiredError(BaseValidationError):
+
+    default_detail = _('Field is required')
+    default_code = _('error')
+
+
+class ValidationError(BaseValidationError):
+
+    default_detail = _('Validation error')
+    default_code = _('error')
+
+
+class FieldValidationError(BaseValidationError):
+
+    default_detail = _('field Validation error')
+    default_code = _('error')