ActiveRecord `count` with a Relation#group returns a hash, not an integer, which break Pagination

Abierto
#984 4 comentarios 4 reacciones 1 asignado Ver en GitHub

@lgebhardt ya está trabajando en esto.

Desde el 10/7/2020.

Evaluación

Este issue todavía no se ha evaluado.

Descripción

Status: Needs Failing Test Type: Bug

I came across this bug in a large Rails API my team is building. The issue is that ActiveRecord count method does not always return an integer. As explained in the docs:

If count is used with Relation#group, it returns a Hash whose keys represent the aggregated column, and the values are the respective amounts:

Person.group(:city).count
# => { 'Rome' => 5, 'Paris' => 3 }

This breaks the expectation made in the various Paginator classes that record_count will be an integer.

The simple way to fix this is to handle the Hash case with hash.values.sum. I am putting in this Issue, instead of a MR, because I am not certain where in the stack you would think this should live. It could live in the AR adapter for find_count, it could live in the Processor when page_options[:record_count] is created, or it could live in the Paginator class.

If you give me any guidance on how you would like to fix this bug, I will happily put in the appropriate MR.

stephen

Lenguaje dominante
Ruby
Estrellas
2.3k
Forks
546
Sin PR fusionados en 30 d

Guía de contribución

No hay ninguna guía de contribución indexada para este repositorio

Primeros pasos

  1. Lee el issue completo y luego la guía de contribución del proyecto.
  2. Comenta en el issue que vas a ocuparte — evita que dos personas hagan lo mismo.
  3. Haz un fork del repositorio y trabaja en una rama.
  4. Abre un pull request que haga referencia al número del issue.

Más de JSONAPI-Resources/jsonapi-resources

Todos los issues de JSONAPI-Resources/jsonapi-resources

Issues similares

Más issues de Ruby

Recibe los nuevos issues en tu correo

Un resumen breve de issues de GitHub para principiantes.