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29 lines
735 B
Go
29 lines
735 B
Go
package datetime
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import (
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"context"
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"github.com/MontFerret/ferret/pkg/runtime/core"
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"github.com/MontFerret/ferret/pkg/runtime/values"
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"github.com/MontFerret/ferret/pkg/runtime/values/types"
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)
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// DateDayOfWeek returns number of the weekday from the date. Sunday is the 0th day of week.
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// @params date (DateTime) - source DateTime.
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// @return (Int) - return number of the weekday.
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func DateDayOfWeek(_ context.Context, args ...core.Value) (core.Value, error) {
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err := core.ValidateArgs(args, 1, 1)
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if err != nil {
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return values.None, err
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}
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err = core.ValidateType(args[0], types.DateTime)
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if err != nil {
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return values.None, err
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}
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wday := args[0].(values.DateTime).Weekday()
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return values.NewInt(int(wday)), nil
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}
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