16 lines
271 B
Go
16 lines
271 B
Go
package cart
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import (
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"errors"
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messages "git.k6n.net/mats/go-cart-actor/proto/cart"
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)
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func SetUserId(grain *CartGrain, req *messages.SetUserId) error {
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if req.UserId == "" {
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return errors.New("user ID cannot be empty")
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}
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grain.UserId = req.UserId
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return nil
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}
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