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mirror of https://github.com/MontFerret/ferret.git synced 2024-12-21 01:21:34 +02:00
ferret/pkg/stdlib/datetime/unit.go
3timeslazy 023040866d added DateCompare function ()
* add pkg/stdlib/objects Length function

* rename lenght.go -> length.go

* fix tests according to other tests

* add new tests to length tests

* delete objects method Length

* add objects method Has

* add objects function Keys

* small fixes in Keys and Has functions

* change Has function

* unit tests for Keys function

* add unit tests for merge. also little change in lib.go

* add doc to Keys function

* Merge function prototype

* add unit tests for KEEP function

* added KEEP function

* added doc for KEYS function

* update lib.go

* update lib.go

* upd merge prototype

* addded isEqualObjects function to objects tests

* change object method Compare

* added unit tests for Compare method

* changed Compare method

* fix Compare method

* rename method Clone to Copy

* added Cloneable interface

* added Value to Cloneable interface

* implemented Cloneable intefrace by array

* added some more unit tests for values.Array

* fix values.Array.Compare method

* added one more unit test

* implemented Cloneable interface by Object

* unit tests for Object.Clone

* move core.IsCloneable to value.go

* change Clone function

* move IsClonable to package values

* updated MERGE unit tests

* added MERGE function

* added MERGE to lib

* added one more test

* changed MERGE function

* rewrite a few comments according to Go Best Practices

* rewrite comments

* fix bug when result of the KEEP function was dependent on source object

* some more changes in KEEP function

* init VALUES function

* push test with bug

* add stress test

* small changes in stress tests

* changes in object.Comapare

* change object.Compare

* add more tests for object.Compare

* added comments to object.Compare function

* change object.Comapare

* delete useless comment

* one more change in object.Compare

* init datetime

* added test for datetime

* added lib.go

* add helpers functions

* made values.DefaultTimeLayout public

* added DATE function

* added DATE_DAYOFWEEK function

* added DATE_YEAR function

* added DATE_MONTH function

* added one more testCase for DATE_MONTH

* added DATE_DAY function

* added DateDay to lib

* added DATE_HOUR, DATE_MINUTE and DATE_SECOND functions

* added DATE_DAYOFYEAR, DATE_LEAPYEAR, DATE_MILLISECOND functions

* fix names in tests

* one more case into dayofyear_test

* added DATE_QUARTER function

* added DATE_DAYS_IN_MONTH function

* added DATE_FORMAT function

* added -v flag into go test

* update DATE_FORMAT test cases

* added one more test case

* add helpers functions

* made values.DefaultTimeLayout public

* added DATE function

* added DATE_DAYOFWEEK function

* added DATE_YEAR function

* added DATE_MONTH function

* added one more testCase for DATE_MONTH

* added DATE_DAY function

* added DateDay to lib

* added DATE_HOUR, DATE_MINUTE and DATE_SECOND functions

* added DATE_DAYOFYEAR, DATE_LEAPYEAR, DATE_MILLISECOND functions

* fix names in tests

* one more case into dayofyear_test

* added DATE_QUARTER function

* added DATE_DAYS_IN_MONTH function

* added DATE_FORMAT function

* added -v flag into go test

* Set codecov support for all branches

* update DATE_FORMAT test cases

* Updated codecov settings

* Added panic recovery mechanism ()

* Bump github.com/mafredri/cdp from 0.19.0 to 0.20.0 ()

Bumps [github.com/mafredri/cdp](https://github.com/mafredri/cdp) from 0.19.0 to 0.20.0.
- [Release notes](https://github.com/mafredri/cdp/releases)
- [Commits](https://github.com/mafredri/cdp/compare/v0.19.0...v0.20.0)

Signed-off-by: dependabot[bot] <support@dependabot.com>

* Bump github.com/gofrs/uuid from 3.1.1 to 3.1.2 ()

Bumps [github.com/gofrs/uuid](https://github.com/gofrs/uuid) from 3.1.1 to 3.1.2.
- [Release notes](https://github.com/gofrs/uuid/releases)
- [Commits](https://github.com/gofrs/uuid/compare/v3.1.1...v3.1.2)

Signed-off-by: dependabot[bot] <support@dependabot.com>

* added one more test case

* sorter instead Compare now

* rename utils.LOG -> utils.PRINT

* rename utils.Logs -> utils.Print

* added DATE_ADD, DATE_SUBTRACT functions

* use keyed fields now

* added DATE_DIFF function

* delete unused var

* delete useless type cast

* fixed a bug when adding/subtrating did not take an amount of units

* added DateCompare function

* renames

* fix small bug

* fix
2018-11-19 19:49:34 -05:00

114 lines
2.2 KiB
Go

package datetime
import (
"strings"
"time"
"github.com/pkg/errors"
)
// Unit specifies an unit of time (Millsecond, Second...).
type Unit int
const (
Millisecond Unit = iota
Second
Minute
Hour
Day
Week
Month
Year
)
var nanoseconds = []float64{
1e6,
1e9,
6e10,
36e11,
864e11,
6048e11,
26784e11,
31536e12,
}
// Nanosecond returns representation of an Unit
// in nanosconds
func (u Unit) Nanosecond() float64 {
return nanoseconds[u]
}
// IsDatesEqual check if two partial dates match.
// This case the day means not the amount of days in Time,
// but the day of the month.
// The same rules applied to each unit.
func IsDatesEqual(tm1, tm2 time.Time, u Unit) bool {
switch u {
case Millisecond:
tm1Msec := tm1.Nanosecond() / 1e6
tm2Msec := tm2.Nanosecond() / 1e6
return tm1Msec == tm2Msec
case Second:
return tm1.Second() == tm2.Second()
case Minute:
return tm1.Minute() == tm2.Minute()
case Hour:
return tm1.Hour() == tm2.Hour()
case Day:
return tm1.Day() == tm2.Day()
case Week:
tm1Wk := tm1.Day() / 7
tm2Wk := tm2.Day() / 7
return tm1Wk == tm2Wk
case Month:
return tm1.Month() == tm2.Month()
case Year:
return tm1.Year() == tm2.Year()
}
return false
}
// AddUnit add amount given in u to tm
func AddUnit(tm time.Time, amount int, u Unit) (res time.Time) {
if u < Day {
return tm.Add(time.Duration(amount) * time.Duration(int64(u.Nanosecond())))
}
switch u {
case Day:
res = tm.AddDate(0, 0, amount*1)
case Week:
res = tm.AddDate(0, 0, amount*7)
case Month:
res = tm.AddDate(0, amount*1, 0)
case Year:
res = tm.AddDate(amount*1, 0, 0)
}
return
}
// UnitFromString returns true and an Unit object if
// Unit with that name exists. Returns false, otherwise.
func UnitFromString(s string) (Unit, error) {
switch strings.ToLower(s) {
case "y", "year", "years":
return Year, nil
case "m", "month", "months":
return Month, nil
case "w", "week", "weeks":
return Week, nil
case "d", "day", "days":
return Day, nil
case "h", "hour", "hours":
return Hour, nil
case "i", "minute", "minutes":
return Minute, nil
case "s", "second", "seconds":
return Second, nil
case "f", "millisecond", "milliseconds":
return Millisecond, nil
}
return -1, errors.Errorf("no such unit '%s'", s)
}