When `acts-as-taggable-on`'s `.tagged_with()` is used with `any: true`,
the gem will use `SELECT *` regardless of any previous (or following) requests
of selecting a limited amount of columns.
Given that the `articles` table has [73 columns](https://dev.to/admin/blazer/queries/314-number-of-columns-in-all-tables)
that will amount to wasted RAM memory for columns we don't need.
By "unscoping" any previous `select()` we can optimize used memory.
Before:
```ruby
[24] pry(main)> Article.tagged_with([:ruby], any: true).select(:id, :name).to_sql
=> "SELECT \"articles\".*, \"articles\".\"id\", \"name\" FROM \"articles\" WHERE EXISTS (SELECT * FROM \"taggings\" WHERE \"taggings\".\"taggable_id\" = \"articles\".\"id\" AND \"taggings\".\"taggable_type\" = 'Article' AND \"taggings\".\"tag_id\" IN (SELECT \"tags\".\"id\" FROM \"tags\" WHERE (\"tags\".\"name\" LIKE 'ruby' ESCAPE '!')))"
```
Note, how the SQL query is `articles.*, articles.column_a`
After:
[25] pry(main)> Article.tagged_with([:ruby], any: true).unscope(:select).select(:id, :name).to_sql
=> "SELECT \"articles\".\"id\", \"name\" FROM \"articles\" WHERE EXISTS (SELECT * FROM \"taggings\" WHERE \"taggings\".\"taggable_id\" = \"articles\".\"id\" AND \"taggings\".\"taggable_type\" = 'Article' AND \"taggings\".\"tag_id\" IN (SELECT \"tags\".\"id\" FROM \"tags\" WHERE (\"tags\".\"name\" LIKE 'ruby' ESCAPE '!')))"
```
`articles.*` is gone :-)
- https://github.com/mbleigh/acts-as-taggable-on/issues/936
- 47da5036de/lib/acts_as_taggable_on/taggable/tagged_with_query/any_tags_query.rb (L2-L8)
* Refactors #update in Admin::ArticlesController and articles_spec.rb
- Adds article.update to #update in the controller
- Shifts the update of co_author_ids further down in #update
- Adds additional tests to articles_spec.rb
- Refactors existing tests in articles_spec.rb
* Adds a gaurd clause to Admin::ArticlesController and refactors specs
* Removes ! from article creation in articles_spec.rb
* Replaces second_user_id and third_user_id with co_author_ids on the Articles table
* Adjusts migration that adds co_author_ids to also add array: true
* Replaces second_user_id and third_user_id with co_author_ids in all applicable files
- Use co_author_ids in _individual_article view
- Use co_author_ids in articles and stories controllers
- Use co_author_ids in article and podcast_episode models
- Use co_author_ids in article_dashboard
- Use co_author_ids in comments_helper
- Use co_author_ids in articles_spec
* Replaces second_user_id and third_user_id with co_author_ids in article.rb model
* Remove unused #assign_co_authors method from the Stories::Controller
* Add #co_authors and #co_author_name_and_path to article_decorator.rb
* Adds a descriptive form field for co_author_ids for Admins in /admin/articles
* Adds a conditional in article/show.html.erb to render co_author names on an Article in a human-readable way
* Replaces get_co_author_name_and_path with proper method name, co_author_name_and_path in show.html.erb
* Adds latest schema to (hopefully) resolve Travis conflicts
* Adds the safe operator to show.html.erb
* Adjusts articles_spec.rb to use an array in the first test
* Replaces unless &.empty? with if ./present? in articles/show.html.erb
* Replaces second_user_id with co_author_ids in stories_show_spec.rb test
* Replaces elsif with else in articles/show.html.erb
* Cleans up show.html.erb by removing conditional in favor of decorator method
* Refactors splitting of params in Articles::Controller and optimizes query in #co_authors
* Reverts removal of second_user_id and third_user_id and migration file
* Adds a data_update script to update co_author_ids with existing second and third user_ids
* Adds validations to co_authors and flash_messages to indicate whether an update was successful or not
- Adds to methods to article.rb to validate the IDs of co_authors and authors
- Adds flash messages to the Admin::Articles::Controller and a redirect to the show page
- Removes the JS highlighting upon submit when updating an Article in Admin
- Refactors #update action in Admin::Articles::Controller
* Adds tests to article_spec.rb around co_author_id validations in article.rb
* Adjusts #validate_co_authors_must_not_be_the_same to use .include? instead
* Uses Field::Select.with_options in article_dashboard.rb to properly display co_author_ids
* Reverts removal of assigning co_author_ids in the Stories::Controller
* Adjusts error message and adjusts return logic in article.rb (thanks, Fernando!)
* Fixes failing article_spec.rb test that checks for co_author_ids uniqueness
* Adds a default array to co_author_ids and checks if they are .blank?
* Refactor data_update script to use a single SQL statement (thank you, Michael)
* Preserve array order of co_author_ids in article_decorator.rb
* Add db file for default: []
* Add validation to fix bug related to text inputs and invalid users when adding co_authors
* Adds tests to ensure that co_author_ids are both an integer and an integer > 0
* Updates admin/articles_spec.rb to default [] instead of nil
* Adjusts validations in article.rb to be DRY-er and more consistent
* Consolidates validations further
* Refactors validations in article.rb to use procs
* Refactors data_update script to remove nil values from array
* Adds second_user_id and third_user_id to Admin::Articles::Controller and Article model
- Add second_user_id to #update
- Add third_user_id to #update
- Add second_user_id to #article_params
- Add third_user_id to #article_params
- Add second and third user_ids to :limited_columns_internal_select
* Adds a second_user_id and third_user_id form field to _individual_article.html.erb
* Adds tests around adding a co-author and multiple co-authors to an article in articles_spec.rb
* First draft - all the big changes
* Changing some more references to 'internal'
* Relocate internal request tests to admin
* Relocate internal system tests to admin
* Fix trailing space
* Test fix
* Move queries from internal to admin
* Docs updates
* Rename internal stimuls controllers to admin (plus docs)
* Rename admin layout
* Fix routing after rebase
* Fixes for latest added admin interfaces
* Serviceworker ignore paths
* Start with webhooks: table and model
* Start with webhooks api
* Start with webhooks api
* Webhook::Event class and events list
* Remove commented callbacks
* Start with sending events to webhook endpoints
* A couple of tests for Articles::Creator
* Send event to webhook endpoint on article destroy
* Dispatch event on article update
* Dispatch event when an article updated from admin
* Spec for the webhook job
* One more test for the dispatch event job
* Integration-like spec for event dispatching to webhook endpoints when creating an article
* Use Addressable::URI to parse endpoint url
* Add oj as a faster fast_jsonapi backend
* Renamed serializers
* Move article serialization out of a model
* Don't allow to create a webhook event with invalid type
* Add fields for ArticleSerializer
* Fix webhook event job specs
* Specify timeout when dispatching events
* Fix webhook job spec
* Change webhook events queue name
* Change serialized article fields for the dispatchable events
* Include user data when serializing an article for webhook event
* Moved decorating out of Webhook::DispatchEvent, fixed most specs
* Fix route in ArticleSerializer
* Move Article decoration to Webhook::PayloadAdapter
* Refactor image url helpers to avoid including helpers into serializer
* Fix specs
* Default url options for production
