sharepoint unique columns and empty values - sharepoint-2010

So I have this problem with columns in a sharepoint site that's really frustrating me. I need a lookup column to be unique but only when a value is chosen. In other words, it must not have duplicating values but can have more than one (None) values.
I tied this on my test site and it worked like a charm. Just as I expected. I can choose values from the looked up list or leave the column (None), but when I try choosing existing value, an error is fired in the list form.
However when I tied the same thing on my production site the behavior was that I could not have more than one (None) value in the column.
I'm fairly new to sharepoint, so it may be sothing i missed. I could not find helpful information about this in the web and I'm wondering what is the default behavior for the unique constraint? Is the problem in the test or the production site?
If anyone have any insight into this, please help. Thanks in advance.

Related

Access Form switches unintentionally between Datasets

I am rather new to coding an Access Application and I have a rather strange error I do not seem to be able to resolve.
I have multiple Forms which are used to write data to some tables. Basically one Form per table.
Mostly the forms are just used to show a selection of the data in the tables. To make sure that noone accidentally alters some data you have to press the button "alter" first, which unlocks the fields to alter the dataset. In one form, however, when you ppress the alter button it switches the dataset. I have one column which is an automated ID which serves as a primary key to distinguish the data from one another.
So when I am debugging the issue and print this ID (Debug.Print Forms(formName).Controls("ID")) it returns the ID of the data that I want to alter, but as soon as I access the data and change one field (Forms(formName).Controls("Column1") = "foo") and print the ID again the ID switched to a completely different dataset.
I have absolutely no clue how that could happen. There is no other code being processed in between. I have googled for multiple hours but have not found anything in this regard yet. Maybe I am just using not the right keywords.
Any help is highly appreciated.
Thanks in advance :)

Is it possible to use VBA to assign an Alias to a Query's fields for later use in a report?

I have a database that runs compliance reports, In this there are 13 fields that need to pull X number of records during a query, based on if we're past compliance date, or before compliance date.
I've been unable to come up with successful code to properly filter the database, not for a lack of trying, people here were quite adept and had good suggestions on previous answers, but alas none of them provided the desired results.
What I would like to do is have the end user click a button on the form, and have that button assign an alias to a column in a saved query, then have the report pull that.
For scope of things, I could have coded a python app to do this in no time, but I don't know enough VBA to get it done, don't need hand holding, but resources, or starting and key points would be helpful.

Podio Calculation field issue

We have an issue with a calculation field not always working. (We have about 5 calculation fields that are similar so same applies to all).
See in the attached example.
The Textbook item has a calc field 'Set Text'. One of the values in there is showing 'Null'.
Most of the time this works fine but in about 8% of the cases it has this null error.
See the other screenshot of the Aggregator item. The field that is being referenced there is correct.
To fix it we have to manually remove the relationship between the two items and then put it back again, to force the calculation to recalculate. This fixes the issue. So the problem does not seem to be the formula but rather the calculation being performed incorrectly.
The Aggregator items are created and joined to the Textbook item through the API.
This is a big issue for us as we use this value to post to our website so the manual fix is not a practical solution.
Podio support please advice what the issue is here
Aggregator
Null error
Without knowing too many details about your specific workflow and structure, let me offer some ideas:
Podio calculation fields can begin to act in strange ways if the original field is being referenced by calculation fields too many levels deep. What I mean by this is that if the original field that shows the Paper Code (or whatever that int showing null is) is being referenced through too many calculation fields, it can begin to cause problems in cases of updating and adding new items. This is most definitely a bug I've encountered with large-scale systems, but there are workarounds.
First off, I see that you have all of the pertinent non-concatenated fields at the bottom of your Aggregator app. Try manually concatenating those fields in the Textbooks app (where you're doing the result.push) instead of referencing the Web course text calc field exclusively.
If that doesn't work and you're proficient with the API, a longer workaround could be that after the automation runs, you wait a sufficient time (say 30 seconds) until the calculation field updates, have the API check for the text "null" in the calculation field, and refreshes the relationship fields if null is found.

Updating friendly name of a liferay page through SQL

Is there a way to update the Liferay's site page's friendly name through a SQL script?
We generally do this in the control panel through admin user.
While #steven35's answer might do the job, you're hitting a pet peeve of mine. On a different level, you're doing it right if you're doing it on the Control Panel, or through the API and you should not think about a way to ever write to Liferay's database. It might work for the moment, but it might also fail in unforeseen ways - sometimes long after your update.
There have been enough samples for this to happen. If you're changing data while Liferay is running, the cache will not be updated. In case these values are also indexed in the search index, they won't be updated there and random later uses might not find the correct page without you reindexing everything. The same value might be stored somewhere else - or translated. Numerous conditions can fail - and there's always one condition more than you expect and cater for. That one condition might break your neck.
Granted, the friendly name of a page might not fall into the most complex of these cases, but just don't get into the habit of writing to Liferay's database. Or, if you do, don't complain about future upgrades failing or requiring extra work, because the database contains values that the API didn't expect. The problem is that during the next upgrade (if you do it in - say - one year) you'll long have forgotten that you manually changed data in the database and blame Liferay for problems during your upgrade.
Changing data is exactly what the UI and the API are for.
Friendly urls are stored in LayoutFriendlyURL.friendlyURL in your Liferay database so the following query should work
UPDATE "yourdatabase"."LayoutFriendlyURL" SET "friendlyURL"="/newurl" WHERE "layoutFriendlyURLId"=12345;
You will also need to update the Layout table accordingly to match the new friendly url.

Editing Sharepoint list item versions

I have a custom list with a text field that set to append changes to the field. This uses versioning. The problem I have is that existing entries have been duplicated in versions. I'd like to go and clean up these programatically, but I don't see a way to pull this. The client object model gives me access to the list item, but there are no methods that I see there to even read past versions, let alone edit them. Or is this something that can only be done server side? Thanks for the help!
I got the answer I was looking for at How to delete versions without having column name in sharepoint list - It looks like it is not possible through the client model, only server side.