47 lines
1.9 KiB
Go
47 lines
1.9 KiB
Go
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package types
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import "net/netip"
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// The named slice types below are used for GORM-persisted Node columns
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// that serialise as JSON. GORM v2's struct-based Updates skips fields
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// it considers zero — for unnamed slice types that is nil — and the
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// default reflect.Value.IsZero treats a nil slice as zero. By giving
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// each slice an IsZero() that always returns false, the column is
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// always included in UPDATE statements regardless of whether the
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// caller is clearing the field. JSON marshalling is unchanged: a nil
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// value serialises to null and an empty value serialises to [].
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//
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// The .List() helpers return the underlying unnamed slice for the
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// places (mainly testify assertions over reflect.DeepEqual) where the
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// distinction between the named and unnamed type matters.
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// Strings is a []string with a GORM-friendly IsZero.
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type Strings []string
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// IsZero implements GORM's zeroer interface to keep the column in the
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// UPDATE set even when the slice is nil or empty.
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func (Strings) IsZero() bool { return false }
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// List returns the underlying []string.
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func (s Strings) List() []string { return []string(s) }
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// Prefixes is a []netip.Prefix with a GORM-friendly IsZero.
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type Prefixes []netip.Prefix
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// IsZero implements GORM's zeroer interface to keep the column in the
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// UPDATE set even when the slice is nil or empty.
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func (Prefixes) IsZero() bool { return false }
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// List returns the underlying []netip.Prefix.
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func (s Prefixes) List() []netip.Prefix { return []netip.Prefix(s) }
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// AddrPorts is a []netip.AddrPort with a GORM-friendly IsZero.
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type AddrPorts []netip.AddrPort
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// IsZero implements GORM's zeroer interface to keep the column in the
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// UPDATE set even when the slice is nil or empty.
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func (AddrPorts) IsZero() bool { return false }
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// List returns the underlying []netip.AddrPort.
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func (s AddrPorts) List() []netip.AddrPort { return []netip.AddrPort(s) }
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