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Regular Visitor

## Date Diff Question using IF and ISBLANK

I have 2 columns

one vRTT[DateInPublishing

vRTT[DateOutOfPublishing]

If vRTT[DateOutOfPublishing] ISBLANK I would like DateDiff to calculate based on TODAY() otherwise it would calculate the datediff between the In and Out fields.

I thought something like the following woud work...

WIPLayout = DATEDIFF(vRTT[DateInPublishing],
(IF(ISBLANK(vRTT[DateOutOfPublishing]), TODAY(), vRTT[DateOutOfPublishing])),
vRTT[DateOutOfPublishing],DAY)

1 ACCEPTED SOLUTION
Community Champion

Okay I think we got this - test it to make sure

```WIPLayout =
IF (
ISBLANK ( vRTT[DateOutOfPublishing] ),
SWITCH (
TRUE (),
TODAY () > vRTT[DateInPublishing], DATEDIFF ( vRTT[DateInPublishing], TODAY (), DAY ),
TODAY () < vRTT[DateInPublishing], DATEDIFF ( TODAY (), vRTT[DateInPublishing], DAY ) * -1,
0
),
SWITCH (
TRUE (),
vRTT[DateOutOfPublishing] > vRTT[DateInPublishing], DATEDIFF ( vRTT[DateInPublishing], vRTT[DateOutOfPublishing], DAY ),
vRTT[DateOutOfPublishing] < vRTT[DateInPublishing], DATEDIFF ( vRTT[DateOutOfPublishing], vRTT[DateInPublishing], DAY ) * -1,
0
)
)```

EDIT:

So if the "OutOf" or "published" date is blank

The first SWITCH checks whether the "In" or "submitted" date is so to speak in the future i.e. > today

this is what throws off the error (those results will be negative * -1)

The second SWITCH checks whether it could have been "published" before it was ever "submitted"

again those results will be negative

Hope this makes sense!

4 REPLIES 4
Community Champion
```WIPLayout =
IF (
ISBLANK ( vRTT[DateOutOfPublishing] ),
DATEDIFF ( vRTT[DateInPublishing], TODAY (), DAY ),
DATEDIFF ( vRTT[DateInPublishing], vRTT[DateOutOfPublishing], DAY )
)```
Regular Visitor

Supplental question:

WIPapproval = DATEDIFF(vRTT[DateOutOfPublishing], (IF(ISBLANK(vRTT[PublishedDate]), TODAY(), vRTT[PublishedDate])), DAY)

returns an error:

In DATEDIFF function, the start date cannot be greater than the end date

How would I put an IF statement in front to capture the situations where the DATEDIFF throws the error?

Community Champion

Okay I think we got this - test it to make sure

```WIPLayout =
IF (
ISBLANK ( vRTT[DateOutOfPublishing] ),
SWITCH (
TRUE (),
TODAY () > vRTT[DateInPublishing], DATEDIFF ( vRTT[DateInPublishing], TODAY (), DAY ),
TODAY () < vRTT[DateInPublishing], DATEDIFF ( TODAY (), vRTT[DateInPublishing], DAY ) * -1,
0
),
SWITCH (
TRUE (),
vRTT[DateOutOfPublishing] > vRTT[DateInPublishing], DATEDIFF ( vRTT[DateInPublishing], vRTT[DateOutOfPublishing], DAY ),
vRTT[DateOutOfPublishing] < vRTT[DateInPublishing], DATEDIFF ( vRTT[DateOutOfPublishing], vRTT[DateInPublishing], DAY ) * -1,
0
)
)```

EDIT:

So if the "OutOf" or "published" date is blank

The first SWITCH checks whether the "In" or "submitted" date is so to speak in the future i.e. > today

this is what throws off the error (those results will be negative * -1)

The second SWITCH checks whether it could have been "published" before it was ever "submitted"

again those results will be negative

Hope this makes sense!

Regular Visitor

Thank you very much!

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