Django - Signals
A developer uses a signal to update a cache after a model save but notices the cache is not updated. What debugging step is best?
A developer uses a signal to update a cache after a model save but notices the cache is not updated. What debugging step is best?
medium📝 Debug Q7 of 15
Step-by-Step Solution
Solution:
Step 1: Verify signal connection and execution
First, confirm the handler is connected and actually runs when the model saves.Step 2: Consider other options
Changing model save or disabling signals is premature without confirming the signal runs.Final Answer:
Check if the signal handler is connected and receiving the signal -> Option DQuick Check:
Debug signals by verifying connection first = B [OK]
Quick Trick: Verify signal connection before changing logic [OK]
Common Mistakes:
MISTAKES- Assuming signal runs without checking
- Changing model code before debugging signals
- Disabling signals unnecessarily
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