I am trying to query some information from a SharePoint list. Now, I am trying to use odata to get it. my problem is that for some reason, $filter is not working with all my keys in that list :S. Here is an example:
This works OK:
- ...ccm/_api/Lists/GetByTitle('Circuit%20Deliveries')/Items?$filter=Title eq 'AUG'
But this one doesn't work (HTTP 400 bad request)
- ...ccm/_api/Lists/GetByTitle('Circuit%20Deliveries')/Items?$filter=Delivery_x0020_Date eq null
Nevertheless, the field name is OK, since I am able to use select and orderby with the same field name. Here is the XML output in IE for 2 'Titles' named AUG:
...ccm/_api/Lists/GetByTitle('Circuit%20Deliveries')/Items?$filter=Title eq 'AUG'&$select=Title,Delivery_x0020_Date,Status_x0020__x002d__x0020_Calcu
<?xml version="1.0" encoding="utf-8" ?> -
<feed xml:base="/ccm/_api/" xmlns="http://www.w3.org/2005/Atom" xmlns:d="http://schemas.microsoft.com/ado/2007/08/dataservices" xmlns:m="http://schemas.microsoft.com/ado/2007/08/dataservices/metadata" xmlns:georss="http://www.georss.org/georss"
xmlns:gml="http://www.opengis.net/gml">
<id>5a2630a8-c00a-4baa-bd43-3912d9264df8</id>
<title />
<updated>2017-09-08T10:58:12Z</updated>
<entry m:etag="" 33 "">
<id>Web/Lists(guid'5ad8ca39-191a-4586-bdef-7bc4830eced9')/Items(332)</id>
<category term="SP.Data.Circuit_x0020_DeliveriesListItem" scheme="http://schemas.microsoft.com/ado/2007/08/dataservices/scheme" />
<link rel="edit" href="Web/Lists(guid'5ad8ca39-191a-4586-bdef-7bc4830eced9')/Items(332)" />
<title />
<updated>2017-09-08T10:58:12Z</updated>
<author>
<name />
</author>
<content type="application/xml">
<m:properties>
<d:Title>AUG</d:Title>
<d:Delivery_x0020_Date m:type="Edm.DateTime">2017-03-06T06:00:00Z</d:Delivery_x0020_Date>
<d:Status_x0020__x002d__x0020_Calcu>Circuit Ready for Production Use on 03/06/2017</d:Status_x0020__x002d__x0020_Calcu>
</m:properties>
</content>
</entry>
<entry m:etag="" 58 "">
<id>Web/Lists(guid'5ad8ca39-191a-4586-bdef-7bc4830eced9')/Items(333)</id>
<category term="SP.Data.Circuit_x0020_DeliveriesListItem" scheme="http://schemas.microsoft.com/ado/2007/08/dataservices/scheme" />
<link rel="edit" href="Web/Lists(guid'5ad8ca39-191a-4586-bdef-7bc4830eced9')/Items(333)" />
<title />
<updated>2017-09-08T10:58:12Z</updated>
<author>
<name />
</author>
<content type="application/xml">
<m:properties>
<d:Title>AUG</d:Title>
<d:Delivery_x0020_Date m:null="true" />
<d:Status_x0020__x002d__x0020_Calcu>Site Survey completed on 09/09/2016</d:Status_x0020__x002d__x0020_Calcu>
</m:properties>
</content>
</entry>
</feed>
As you can see I was able to successfully query and select both fields from the list and filter by Title. Nevertheless, I would like to further filter on Delivery_x0020_Date being empty (or null).
I searched around and some people were saying that filtering by null on dates is not always working. But in my case is a bit more than that, because even if I try to filter by another key(Status_x0020__x002d__x0020_Calcu) it will return Bad Request
Is there a requirement on what type of keys you can filter on? Thank you