Missing Eager Load (ARCH5051)

Key go.orm.missing-eager-load · Severity warning · Category orm

Looping over related data without declaring an eager-load API like Preload causes N+1 queries. Preload the relation up front.

Incorrect

var orders []Order
db.Find(&orders)
for _, o := range orders {
    fmt.Println(o.Customer.Name) // Customer lazy-loaded
}

Correct

var orders []Order
db.Preload("Customer").Find(&orders)
for _, o := range orders {
    fmt.Println(o.Customer.Name)
}

Fix

Eager-load the accessed relation with Preload on queries that read related data.