Combine two ActiveRecord::Relation objects

📖 Combining Two ActiveRecord::Relation Objects: A Guide 📚

Are you stuck with combining two separate ActiveRecord::Relation objects? Don't worry, we've got you covered! In this blog post, we'll explore a common issue faced by developers and provide easy solutions to help you combine these objects effortlessly. So let's dive in and unravel the mystery! 💪

⚡️ The Problem ⚡️

Suppose you have two ActiveRecord::Relation objects: first_name_relation and last_name_relation. Each of them contains a specific condition applied to the User model. Now the question arises: is it possible to combine these two relations into a single ActiveRecord::Relation object that includes both conditions? 🤔

💡 The Solution 💡

Yes, it is indeed possible to achieve the desired behavior! Although you may already know that you can chain the where method to combine conditions, we'll focus on handling two separate ActiveRecord::Relation objects, as per your requirement. Here's how you can do it:

1. Start by defining the separate relations:

   first_name_relation = User.where(first_name: 'Tobias') # ActiveRecord::Relation last_name_relation = User.where(last_name: 'Fünke') # ActiveRecord::Relation

2. To combine these relations, you can make use of the or method provided by ActiveRecord.

   combined_relation = first_name_relation.or(last_name_relation)

   This will generate a new ActiveRecord::Relation object that includes both conditions and allows you to perform further operations.

🚀 Example Usage 🚀

Let's illustrate the solution with a practical example. Assume you want to find all users with either the first name "Tobias" or the last name "Fünke":

combined_relation = first_name_relation.or(last_name_relation)
users = combined_relation.all

Now, users will contain all the User records that satisfy either the first name condition or the last name condition, or both! 🎉

📣 Call-to-Action 📣

Give this technique a try in your own projects and discover the power of combining separate ActiveRecord::Relation objects seamlessly. If you encounter any issues or have any further questions, feel free to share your thoughts in the comments below. We're here to help! ✨

💡 In summary, by utilizing the or method, you can easily combine two separate ActiveRecord::Relation objects and achieve the desired behavior. So don't let the separation stop you from combining conditions and making your queries more powerful! 💪

Happy coding! 🎉