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Duplicação do objeto no banco ao mudar status para enabled/disabled (Modulo Arquitetura Hexagonal)
Tarde pessoal,
na aula Enable e Disable Handlers e considerações finais do modulo, após a criação handler de disable e enable product, eu percebi que ele duplicava o registro no banco para arrumar isso e preciso arrumar no seguinte local:
PATH: /adapters/db/product.go
func (p *ProductDb) Save(product application.ProductInterface) (application.ProductInterface, error) {
var rows int
p.db.QueryRow(`select id from products where id=?`, product.GetID()).Scan(&rows)
if rows == 0 {
_, err := p.create(product)
if err != nil {
return nil, err
}
} else {
_, err := p.update(product)
if err != nil {
return nil, err
}
}
return product, nil
}
Desta forma vocês estão retornando o ID e na verdade querem um count(*) um quantidade de registros existente com aquele determinado ID, como esse select não faz um retorno do tipo int e sim um []string ele não consegue jogar o retorno na variável rows e o valor por padrão de um objeto declarado do tipo int e 0. Para arrumar esse comportamento sugiro essa alteração abaixo.
func (p *ProductDb) Save(product application.ProductInterface) (application.ProductInterface, error) {
var rows int
p.db.QueryRow(`select count(*) from products where id=?`, product.GetID()).Scan(&rows)
if rows == 0 {
_, err := p.create(product)
if err != nil {
return nil, err
}
} else {
_, err := p.update(product)
if err != nil {
return nil, err
}
}
return product, nil
}
Obrigado e até mais.
Erro ao realizar build do Dockerfile
Ao rodar
docker build .
Estou tendo o seguinte erro
[+] Building 12.0s (6/11)
=> [internal] load build definition from Dockerfile 0.0s
=> => transferring dockerfile: 38B 0.0s
=> [internal] load .dockerignore 0.0s
=> => transferring context: 2B 0.0s
=> [internal] load metadata for docker.io/library/golang:1.16 1.6s
=> [1/8] FROM docker.io/library/golang:1.16@sha256:5f6a4662de3efc6d6bb812d02e9de3d8698eea16b8eb7281f03e6f3e8383018e 0.0s
=> CACHED [2/8] WORKDIR /go/src 0.0s
=> ERROR [3/8] RUN go get -u github.com/spf13/cobra@latest && go install github.com/golang/mock/[email protected] && go 10.4s
------
> [3/8] RUN go get -u github.com/spf13/cobra@latest && go install github.com/golang/mock/[email protected] && go install github.com/spf13/cobra-cli@latest:
#6 10.38 go get github.com/spf13/cobra@latest: module github.com/spf13/cobra: Get "https://proxy.golang.org/github.com/spf13/cobra/@v/list": dial tcp: lookup proxy.golang.org on 172.17.192.1:53: read udp 172.17.0.2:38208->172.17.192.1:53: i/o timeout
------
executor failed running [/bin/sh -c go get -u github.com/spf13/cobra@latest && go install github.com/golang/mock/[email protected] && go install github.com/spf13/cobra-cli@latest]: exit code: 1
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