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update mongokit patterng

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This commit is contained in:
Jonathan Como 2014-12-15 13:25:15 -08:00
parent 41b5d77e29
commit a8498b6859
1 changed files with 5 additions and 2 deletions
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7
docs/patterns/mongokit.rst
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@ -48,12 +48,13 @@ insert query to the next without any problem. MongoKit is just schemaless
too, but implements some validation to ensure data integrity. too, but implements some validation to ensure data integrity.
Here is an example document (put this also into :file:`app.py`, e.g.):: Here is an example document (put this also into :file:`app.py`, e.g.)::
from mongokit import ValidationError
def max_length(length): def max_length(length):
def validate(value): def validate(value):
if len(value) <= length: if len(value) <= length:
return True return True
raise Exception('%s must be at most %s characters long' % length) raise ValidationError('%s must be at most {0} characters long'.format(length))
return validate return validate
class User(Document): class User(Document):
@ -75,7 +76,9 @@ Here is an example document (put this also into :file:`app.py`, e.g.)::
This example shows you how to define your schema (named structure), a This example shows you how to define your schema (named structure), a
validator for the maximum character length and uses a special MongoKit feature validator for the maximum character length and uses a special MongoKit feature
called `use_dot_notation`. Per default MongoKit behaves like a python called `use_dot_notation`. When you define a ValidationError, you can add the `%s`
into the format string to have the value placed in there for the final error message.
ValueErrors can also be thrown as an alternative. Per default MongoKit behaves like a python
dictionary but with `use_dot_notation` set to ``True`` you can use your dictionary but with `use_dot_notation` set to ``True`` you can use your
documents like you use models in nearly any other ORM by using dots to documents like you use models in nearly any other ORM by using dots to
separate between attributes. separate between attributes.