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package postgres |
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import ( |
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"database/sql/driver" |
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"encoding/binary" |
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"errors" |
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"fmt" |
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"strconv" |
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"github.com/jackc/pgio" |
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"github.com/jackc/pgtype" |
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) |
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// pguint64 represents a PostgreSQL uint64 type |
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type pguint64 struct { |
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Uint uint64 |
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Status pgtype.Status |
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} |
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// Set sets the pguint64 value from various input types |
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func (p *pguint64) Set(src interface{}) error { |
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switch value := src.(type) { |
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case int64: |
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if value < 0 { |
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return fmt.Errorf("%d is less than minimum value for pguint64", value) |
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} |
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*p = pguint64{Uint: uint64(value), Status: pgtype.Present} |
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case int32: |
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if value < 0 { |
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return fmt.Errorf("%d is less than minimum value for pguint64", value) |
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} |
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*p = pguint64{Uint: uint64(value), Status: pgtype.Present} |
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case uint32: |
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*p = pguint64{Uint: uint64(value), Status: pgtype.Present} |
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case uint64: |
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*p = pguint64{Uint: value, Status: pgtype.Present} |
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default: |
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return fmt.Errorf("cannot convert %v to pguint64", value) |
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} |
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return nil |
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} |
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// Get returns the underlying value |
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func (p pguint64) Get() interface{} { |
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switch p.Status { |
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case pgtype.Present: |
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return p.Uint |
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case pgtype.Null: |
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return nil |
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default: |
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return p.Status |
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} |
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} |
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// AssignTo assigns the value to the destination |
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func (p *pguint64) AssignTo(dst interface{}) error { |
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switch v := dst.(type) { |
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case *uint64: |
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if p.Status == pgtype.Present { |
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*v = p.Uint |
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} else { |
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return fmt.Errorf("cannot assign %v into %T", p, dst) |
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} |
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case **uint64: |
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if p.Status == pgtype.Present { |
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n := p.Uint |
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*v = &n |
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} else { |
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*v = nil |
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} |
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} |
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return nil |
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} |
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// DecodeText decodes text format |
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func (p *pguint64) DecodeText(ci *pgtype.ConnInfo, src []byte) error { |
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if src == nil { |
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*p = pguint64{Status: pgtype.Null} |
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return nil |
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} |
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n, err := strconv.ParseUint(string(src), 10, 64) |
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if err != nil { |
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return err |
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} |
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*p = pguint64{Uint: n, Status: pgtype.Present} |
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return nil |
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} |
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// DecodeBinary decodes binary format |
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func (p *pguint64) DecodeBinary(ci *pgtype.ConnInfo, src []byte) error { |
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if src == nil { |
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*p = pguint64{Status: pgtype.Null} |
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return nil |
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} |
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if len(src) != 4 { |
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return fmt.Errorf("invalid length: %v", len(src)) |
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} |
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n := binary.BigEndian.Uint64(src) |
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*p = pguint64{Uint: n, Status: pgtype.Present} |
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return nil |
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} |
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// EncodeText encodes to text format |
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func (p pguint64) EncodeText(ci *pgtype.ConnInfo, buf []byte) ([]byte, error) { |
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switch p.Status { |
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case pgtype.Null: |
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return nil, nil |
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case pgtype.Undefined: |
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return nil, errors.New("encode text status undefined status") |
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} |
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return append(buf, strconv.FormatUint(p.Uint, 10)...), nil |
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} |
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// EncodeBinary encodes to binary format |
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func (p pguint64) EncodeBinary(ci *pgtype.ConnInfo, buf []byte) ([]byte, error) { |
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switch p.Status { |
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case pgtype.Null: |
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return nil, nil |
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case pgtype.Undefined: |
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return nil, errors.New("encode text status undefined status") |
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} |
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return pgio.AppendUint64(buf, p.Uint), nil |
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} |
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// Scan implements the database/sql Scanner interface |
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func (p *pguint64) Scan(src interface{}) error { |
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if src == nil { |
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*p = pguint64{Status: pgtype.Null} |
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return nil |
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} |
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switch src := src.(type) { |
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case uint32: |
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*p = pguint64{Uint: uint64(src), Status: pgtype.Present} |
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return nil |
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case int64: |
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*p = pguint64{Uint: uint64(src), Status: pgtype.Present} |
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return nil |
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case uint64: |
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*p = pguint64{Uint: src, Status: pgtype.Present} |
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return nil |
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case string: |
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return p.DecodeText(nil, []byte(src)) |
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case []byte: |
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srcCopy := make([]byte, len(src)) |
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copy(srcCopy, src) |
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return p.DecodeText(nil, srcCopy) |
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} |
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return fmt.Errorf("cannot scan %T", src) |
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} |
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// Value implements the database/sql/driver Valuer interface |
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func (p pguint64) Value() (driver.Value, error) { |
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switch p.Status { |
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case pgtype.Present: |
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return int64(p.Uint), nil |
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case pgtype.Null: |
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return nil, nil |
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default: |
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return nil, errors.New("encode text status undefined status") |
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170
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} |
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} |
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172
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Permify /
permify
