ActiveRecord Where Assoc
marginalia
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| ActiveRecord Where Assoc | marginalia | |
|---|---|---|
| 8 | - | |
| 208 | 1,715 | |
| - | 0.7% | |
| 4.8 | 3.5 | |
| 9 days ago | 2 months ago | |
| Ruby | Ruby | |
| MIT License | MIT License |
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For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
ActiveRecord Where Assoc
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EXISTS clause for active record
I’ve been using the activerecord_where_assoc gem for this. I think it’s API is more natural than this proposal.
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My new gem lets you follow associations when doing ActiveRecord queries. Here's an intro for follow_assoc.
Your examples using joins would return duplicated Sections. That might force you to add a distinct. I personally find it wrong to do a distinct in a scope just to be able to make the condition I want the scope to do. It's a hidden side effect that could cause problem elsewhere and it's unexpected from the name of the scope. I made a gem to deal with that situation: where_assoc. There is definitely an overlap between both gem.
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Rails 6.1 adds query method associated to check for the association presence
Assuming that ... was indicating some form of annoyance with that distinct, you might want to take a look at activerecord_where_assoc
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Rails 6.1.1 allows `where` to reference associations via joined table alias names.
For those interested, the example uses this gem: activerecord_where_assoc
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Active Record: x.includes(y): y was not recognized for preload
Here is an introduction to the gem.
marginalia
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Tracking mentions began in Dec 2020.
What are some alternatives?
Ruby JSON Schema Validator - Ruby JSON Schema Validator
ActsAsParanoid - ActiveRecord plugin allowing you to hide and restore records without actually deleting them.
Enumerize - Enumerated attributes with I18n and ActiveRecord/Mongoid support
Logidze - Database changes log for Rails
ActsAsTree - ActsAsTree -- Extends ActiveRecord to add simple support for organizing items into parent–children relationships.
pluck_all - A more efficient way to get data from database. Like #pluck method but return array of hashes instead.
activerecord_json_validator - 🔩 ActiveRecord::JSONValidator makes it easy to validate JSON attributes against a JSON schema.
Espinita - Audit activerecord models like a boss (and works with rails 4!)
PaperTrail - Track changes to your rails models
manyfold - A self-hosted digital asset manager for 3d print files. Previously named "VanDAM"
Discard - 🃏🗑 Soft deletes for ActiveRecord done right