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41 lines
940 B
Go
41 lines
940 B
Go
package hash
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import (
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"github.com/nalgeon/redka/internal/parser"
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"github.com/nalgeon/redka/internal/redis"
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)
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// Increments the floating point value of a field by a number.
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// Uses 0 as initial value if the field doesn't exist.
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// HINCRBY key field increment
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// https://redis.io/commands/hincrbyfloat
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type HIncrByFloat struct {
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redis.BaseCmd
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key string
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field string
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delta float64
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}
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func ParseHIncrByFloat(b redis.BaseCmd) (*HIncrByFloat, error) {
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cmd := &HIncrByFloat{BaseCmd: b}
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err := parser.New(
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parser.String(&cmd.key),
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parser.String(&cmd.field),
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parser.Float(&cmd.delta),
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).Required(3).Run(cmd.Args())
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if err != nil {
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return nil, err
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}
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return cmd, nil
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}
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func (cmd *HIncrByFloat) Run(w redis.Writer, red redis.Redka) (any, error) {
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val, err := red.Hash().IncrFloat(cmd.key, cmd.field, cmd.delta)
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if err != nil {
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w.WriteError(cmd.Error(err))
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return nil, err
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}
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redis.WriteFloat(w, val)
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return val, nil
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}
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