[英]I'm not able to perform validation for the input data in my mongoengine model class
class TextBoxValues(DynamicDocument):
entity_id = StringField(max_length=200, required=True)
textbox_type = StringField(max_length=1000, required=True)
regexp = re.compile('[A-Za-z]')
entity_value = StringField(regex=regexp,max_length=None, required=True)
I was using the regex parameter to perform validation which is not working for me,it still takes input in any format, why?我正在使用正则表达式参数来执行对我不起作用的验证,它仍然接受任何格式的输入,为什么?
The regex to provide to StringField(regex=)
should in fact be a string but it also work if you give it a compiled regex.提供给StringField(regex=)
实际上应该是一个字符串,但如果你给它一个编译的正则表达式它也可以工作。
The problem is your regex actually.问题实际上是您的正则表达式。 It should be regexp=r'^[A-Za-z]+$'
as @wiktor-stribiżew suggested in the comment.正如@wiktor-stribiżew 在评论中所建议的那样,它应该是regexp=r'^[A-Za-z]+$'
。
The minimal example below demonstrates that the regex works as expected下面的最小示例表明正则表达式按预期工作
from mongoengine import *
connect() # connect to 'test' database
class TextBoxValues(Document):
entity_value = StringField(regex=r'^[A-Za-z]+$')
TextBoxValues(entity_value="AZaz").save() # passes validation
TextBoxValues(entity_value="AZaz1").save() # raises ValidationError (String value did not match validation regex: ['entity_value'])
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