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dialect/sql/sqlgraph: fix bug in entql predicate evaluation (#1827)

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This commit is contained in:
Ariel Mashraki
2021-08-11 21:03:52 +03:00
committed by GitHub
parent 30330751bb
commit e71ccc6b6e
3 changed files with 42 additions and 28 deletions
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20
dialect/sql/sqlgraph/entql.go
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@@ -225,16 +225,18 @@ func (e *state) evalBinary(expr *entql.BinaryExpr) *sql.Predicate {
_, ok = expr.Y.(*entql.Value)
}
expect(ok, "expr.Y to be *entql.Field or *entql.Value (got %T)", expr.X)
return sql.P(func(b *sql.Builder) {
b.Ident(e.field(field))
b.WriteOp(binary[expr.Op])
switch x := expr.Y.(type) {
case *entql.Field:
b.Ident(e.field(x))
case *entql.Value:
switch x := expr.Y.(type) {
case *entql.Field:
return sql.ColumnsOp(e.field(field), e.field(x), binary[expr.Op])
case *entql.Value:
c := e.field(field)
return sql.P(func(b *sql.Builder) {
b.Ident(c).WriteOp(binary[expr.Op])
args(b, x)
}
})
})
default:
panic("unreachable")
}
}
}