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[Ruby] [Rails] How to use Scope

less than 1 minute read

Development environment ・Ruby: 2.5.7 Rails: 5.2.4 ・Vagrant: 2.2.7 ・VirtualBox: 6.1 ・OS: macOS Catalina

[Ruby] [N+1 question]

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What is the ##N+1 problem? A problem that occurs when associating models with an association.

[Ruby] [Meaning of model: of form_with]

1 minute read

Meaning of model: described in form_with I did not understand it well, but I finally understood the meaning, so I will describe it as output.

[Ruby] 【Prefix】

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What is ##Prefix

[Ruby] Writing code Ruby

4 minute read

What is the act of writing code with # ruby … Reading ruby’s writing method and thinking method in a book, there are many things that can not be seen just b...

[Java] TDD Barely #2 (July 13th, 2020)

less than 1 minute read

New knowledge assertTrue(boolean) Determines whether the argument is true. Object.equals public boolean equals(Object object){ return true; } Reference...

[Java] Spring Boot tutorial task schedule

2 minute read

I created a program to execute tasks periodically, referring to the official tutorial of Spring boot (Schedule of tasks).

[Ruby] Introduction of gRPC client to rails

3 minute read

History In the implementation of the product (Rails) that is in charge of PM at the company, it is necessary to obtain information from other services, and ...