{"id":226,"date":"2023-11-26T02:39:31","date_gmt":"2023-11-26T02:39:31","guid":{"rendered":"https:\/\/codingismycraft.blog\/?p=226"},"modified":"2023-11-26T02:40:17","modified_gmt":"2023-11-26T02:40:17","slug":"potential-pitfalls-of-over-reliance-on-sqlalchemy","status":"publish","type":"post","link":"https:\/\/codingismycraft.blog\/index.php\/2023\/11\/26\/potential-pitfalls-of-over-reliance-on-sqlalchemy\/","title":{"rendered":"Potential Pitfalls of Over-reliance on SQLAlchemy."},"content":{"rendered":"<p>When it comes to accessing databases, the go-to option for many Python<br \/>\ndevelopers is SQLAlchemy, a popular SQL toolkit and Object-Relational Mapping<br \/>\n(ORM) system. Based on my experience<br \/>\nwith multiple databases and data access libraries, I&#8217;ve found the potential<br \/>\noveruse of SQLAlchemy to be quite a common scenario. And this over-reliance<br \/>\nmight cause more harm than good.<\/p>\n<p>At first glance, SQLAlchemy appears to be a powerful tool, especially in<br \/>\ncreating simple services with User Interfaces (UIs). However, when it comes to<br \/>\nbackend services that require modularity, high performance, and<br \/>\nmaintainability, it may not always be the best choice. In fact, high-level ORM<br \/>\nlibraries, like SQLAlchemy, can often violate fundamental object-oriented (OO)<br \/>\nprinciples, leading to poorly structured code.<\/p>\n<p>One of the main issues I want to highlight is that SQLAlchemy forces the data<br \/>\nschema to be reflected in class attributes. This direct exposure may offer some<br \/>\nconveniences but, in the long run, it violates the encapsulation principle of<br \/>\nOO programming. Believe it or not, this lack of encapsulation can cause<br \/>\npotential security concerns, providing loopholes for unauthorized parties to<br \/>\naccess the underlying database schema.<\/p>\n<p>A quick summary of things that can be problematic with SQLAlchemy can be<br \/>\nsummarized as follows:<\/p>\n<ul>\n<li> Violating encapsulation principles of OOP<\/li>\n<li> Exposing and tying the data schema to class attributes causing tight coupling between the database schema and the application<\/li>\n<li> Creating potential security concerns<\/li>\n<li> Proving complicated to write and maintain relationships between tables due to varying types and configurations, making it more challenging to manage changes to the database schema.<\/li>\n<li> Introducing complexities in handling object states and session management, which can lead to performance issues and tight coupling with the application code.<\/li>\n<li> Affecting query performance due to the use of ORM and providing less flexibility and control to developers over the database interactions<\/li>\n<\/ul>\n<p>In conclusion, while SQLAlchemy is an undeniably convenient tool for database<br \/>\ninteractions, it&#8217;s important to take heed of potential drawbacks; especially<br \/>\nwhen building backend services that require high performance, maintainability,<br \/>\nand security. The overuse of SQLAlchemy may lead to violations of<br \/>\nobject-oriented principles, tightly coupled code, security concerns, and<br \/>\ncomplexities in handling object states. It may be more prudent to consider<br \/>\nother options or approaches for these circumstances. As a developer,<br \/>\nunderstanding the tools at your disposal and choosing the right one for each<br \/>\nspecific task is crucial. SQLAlchemy can be a great asset for the right tasks,<br \/>\nbut caution is advised to avoid creating more challenges than solutions in your<br \/>\nproject.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>When it comes to accessing databases, the go-to option for many Python developers is SQLAlchemy, a popular SQL toolkit and Object-Relational Mapping (ORM) system. Based&hellip;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"advanced_seo_description":"","jetpack_seo_html_title":"","jetpack_seo_noindex":false,"footnotes":""},"categories":[6],"tags":[],"class_list":["post-226","post","type-post","status-publish","format-standard","hentry","category-programming"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","jetpack-related-posts":[{"id":279,"url":"https:\/\/codingismycraft.blog\/index.php\/2024\/10\/03\/the-challenges-of-python-migration-lessons-from-c-and-beyond\/","url_meta":{"origin":226,"position":0},"title":"The Challenges of Python Migration: Lessons from C++ and Beyond","author":"john","date":"October 3, 2024","format":false,"excerpt":"One project that confirmed the need for caution and conservatism when estimating deadlines involved migrating a massive codebase of over 4,000 Python files and 250+ open-source libraries from Python 3.6 to 3.10. 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This culture, focused on \u201cmoving fast and\u2026","rel":"","context":"Similar post","block_context":{"text":"Similar post","link":""},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":213,"url":"https:\/\/codingismycraft.blog\/index.php\/2017\/10\/04\/adding-descriptors-to-your-python-arsenal\/","url_meta":{"origin":226,"position":3},"title":"Adding descriptors to your python arsenal","author":"john","date":"October 4, 2017","format":false,"excerpt":"Python\u00a0provides a\u00a0 rich programming paradigm providing the ability to the programmer to express his solutions in a very concise and elegant way.\u00a0 One of the python features that is not in wide use although it gives the opportunity to simplify certain pieces of code,\u00a0is the descriptor protocol which is the\u2026","rel":"","context":"In &quot;Programming&quot;","block_context":{"text":"Programming","link":"https:\/\/codingismycraft.blog\/index.php\/category\/programming\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":35,"url":"https:\/\/codingismycraft.blog\/index.php\/2013\/03\/11\/programming-languages\/","url_meta":{"origin":226,"position":4},"title":"Programming Languages","author":"john","date":"March 11, 2013","format":false,"excerpt":"As a seasoned programmer I have used a wide spectrum of programming languages and development approaches. 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