53 lines
		
	
	
		
			1.3 KiB
		
	
	
	
		
			Markdown
		
	
	
	
	
	
			
		
		
	
	
			53 lines
		
	
	
		
			1.3 KiB
		
	
	
	
		
			Markdown
		
	
	
	
	
	
| ### `regex_match(value: Any, regex: str) -> bool`
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| 
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| Check if `value` matches Regular Expression `regex`.
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| 
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| Example:
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| 
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| ```python
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| return regex_match(request.user.username, '.*admin.*')
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| ```
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| 
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| ### `regex_replace(value: Any, regex: str, repl: str) -> str`
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| 
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| Replace anything matching `regex` within `value` with `repl` and return it.
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| 
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| Example:
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| 
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| ```python
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| user_email_local = regex_replace(request.user.email, '(.+)@.+', '')
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| ```
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| 
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| ### `ak_is_group_member(user: User, **group_filters) -> bool`
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| 
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| Check if `user` is member of a group matching `**group_filters`.
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| 
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| Example:
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| 
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| ```python
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| return ak_is_group_member(request.user, name="test_group")
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| ```
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| 
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| ### `ak_user_by(**filters) -> Optional[User]`
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| 
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| Fetch a user matching `**filters`.
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| 
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| Returns "None" if no user was found, otherwise [User](/docs/expressions/reference/user-object)
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| 
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| Example:
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| 
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| ```python
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| other_user = ak_user_by(username="other_user")
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| ```
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| 
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| ## Comparing IP Addresses
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| 
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| To compare IP Addresses or check if an IP Address is within a given subnet, you can use the functions `ip_address('192.0.2.1')` and `ip_network('192.0.2.0/24')`. With these objects you can do [arithmetic operations](https://docs.python.org/3/library/ipaddress.html#operators).
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| 
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| You can also check if an IP Address is within a subnet by writing the following:
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| 
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| ```python
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| ip_address('192.0.2.1') in ip_network('192.0.2.0/24')
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| # evaluates to True
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| ```
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