MySQL Syntax Error in ActiveRelationResource (0.10.x)

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Description

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Bug reports:

Version 0.10.5

#<ActiveRecord::StatementInvalid: Mysql2::Error: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '."id" AS "individuals_id", individuals.id FROM `individuals` WHERE `individuals`' at line 1: SELECT  "individuals"."id" AS "individuals_id", individuals.id FROM `individuals` WHERE `individuals`.`deleted_at` IS NULL ORDER BY individuals.id asc LIMIT 10 OFFSET 0>
>> fragments = resource_klass.find_fragments(find_options[:filters], options)

This is related to #1310, but is not a multi-tenancy issue. This a MySQL syntax issue that I believe it created by the ActiveRelationResource#quote method which is uses explicit double quotes for quoting table names in ActiveRelationResource#concat_table_field and ActiveRelationResource#alias_table_field.

By adding MySQL to the CI workflow testing matrix, this issue is easily reproduced in CI testing. I will create a PR for adding MySQL to the testing matrix.

Inizia leggendo quote, concat_table_field e alias_table_field in lib/jsonapi/active_relation_resource.rb, quindi riproduci la SELECT segnalata su MySQL tramite il workflow CI. Il lavoro è completato quando l’esecuzione dei test MySQL non segnala più un errore di sintassi per questa query ActiveRelationResource.