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Flask Sqlalchemy - how to use custom query criteria ---orm (7)
2022-06-30 15:26:00 【Alien-Hu】
List of articles
0. The story background
1. When you check , The conditions for each query are different , What would you do ? If there are few query scenarios , Sure if else, All kinds of situations are listed , There's always one for you !
2. When a table has 100+ When fields , Every field can be queried , How to deal with it ?!
3. Basic query methods , In fact, each model class is similar , The only difference is that the conditions are different , Can I write a base class , Inherit it all . In this way, there is no need to write a query method for each model ?!
1.filter_by() Special use of
class AlgoDailyTCAByStrategyCategoryAndStrategyType(
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