Support PATCH to a complex type.

[LianwMS]

Now we the Delta class only supports Entity type, but the protocol also
supports PATCH to a complex type:

11.4.9.3 Update a Complex Type

A successful PATCH request to the edit URL for a complex typed property updates that property. The request body MUST contain a single valid representation for the target complex type.
The service MUST directly modify only those properties of the complex type specified in the payload of the PATCH request.

Work Item Details

Original CodePlex Issue: Issue 2066
Status: Proposed
Reason Closed: Unassigned
Assigned to: Unassigned
Reported on: Jul 16, 2014 at 4:02 AM
Reported by: jinfutan
Updated on: Oct 20, 2014 at 7:28 PM
Updated by: abatishchev

[LianwMS]

On 2014-10-14 21:20:55 UTC, skotapati commented:

Just wondering when will this feature be available in WebAPI/OData?

[sammym1982]

Is this being worked upon?

[Tornhoof]

+1 on this. Using complex types simplifies the data models, especially for nested structures

[ashelley]

+1 on this. Not being able to patch nested objects is a big limitation.

[zizzex]

Without nested objects this feature is unfortunately almost useless.
Is there any prevision of a possible availability date? Thanks.

[RavindraBarapatre]

Below is my Address entity, it has PostalAddress as nested entity, I am trying to do patch update.
{
"CareOf": "Updated",
"BehalfOf": "BehalfOf updated",
"PostalAddress": {
"Id": "9bd27f41-e093-46ce-8d51-10ba7e2e3e13",
"PoBox": "12121",
"PostalCode": "12121"
}
}
when I debug odata service I received Delta patch = null.

If I pass simple object it works.
{
"CareOf": "Updated",
"BehalfOf": "BehalfOf updated"
}

is it because Delta not support nested object or Patch in Odata service is not supporting it.

[shaungrech]

Hi,

As far as I know at the moment OData Web API does not support Patch within
nested objects.

Shaun

On Wed, Dec 23, 2015 at 1:29 PM, RavindraBarapatre <notifications@github.com

wrote:

Below is my Address entity, it has PostalAddress as nested entity, I am
trying to do patch update.
{
"CareOf": "Updated",
"BehalfOf": "BehalfOf updated",
"PostalAddress": {
"Id": "9bd27f41-e093-46ce-8d51-10ba7e2e3e13",
"PoBox": "12121",
"PostalCode": "12121"
}
}
when I debug odata service I received Delta patch = null.

If I pass simple object it works.
{
"CareOf": "Updated",
"BehalfOf": "BehalfOf updated"
}

is it because Delta not support nested object or Patch in Odata service is
not supporting it.

—
Reply to this email directly or view it on GitHub
#135 (comment).

Regards,

Shaun Grech Co-Founder, Incredible Web / Bum a Lift
79886164
shaun.grech@incredible-web.com
www.incredible-web.com
www.bumalift.com http://www.incredible-web.com/

[RavindraBarapatre]

Ohhh .. :(
is there any workaround?

[sgankum]

without supporting nested objects, i believe this is not an useful one.
Kindly let us know the workaround for this

[lelong37]

+100

[xuzhg]

Dear customers, Would you please help me try the [PR]#623 and give me some feedback?

I would like to put it into 5.9 beta so customers can use it from nightly build. Thanks.

[xuzhg]

I merged my fix. Anyone who try it and find any issue, please reopen it or file a new issue for us. Thanks in advance.

[egbertn]

package id="Microsoft.OData.Core" version="7.0.0" targetFramework="net462"
package id="Microsoft.OData.Edm" version="7.0.0" targetFramework="net462"

These packages are totally different compared with 5.9.x
Will the patch be fixed in those as well?

[bkwdesign]

I can't even get my odata v4 api controller to support PATCHing of my main entity

Have no idea how to get an ajax PATCH request to work.. always get a null at my controller's 'delta' parameter

NuGet packages:
id="Microsoft.AspNet.OData" version="6.0.0"
id="Microsoft.OData.Core" version="7.0.0"
id="Microsoft.OData.Edm" version="7.0.0"

[egbertn]

Important is the body and the URL syntax e.g.

public async Task<IHttpActionResult> Patch(Guid key, [DeltaBody] Data.OData.Delta<company> delta)

Second, I copied Delta from the Github 5.9 libraries, that are more recent than the 7.0 libraries and 'renamed' the namespace so I got it working, more or less.
DeltaBody is my own attribute
to intercept the raw message and I use NewtonSoft to deserialize the message, so the complex type will be patched too! This has side effects, because OData serialisation is simply not the same, but it works, in my case.
drop a message to my profile, if you want the source for the 'delta workaround'.

[olumyde777]

Hi Egbertn,
Please I need the source code for the 'delta workaround'.
My email address is olumyde77@yahoo.com
Thanks

[egbertn]

It's here
http://technolog.nl/blogs/eprogrammer/archive/2017/04/30/OData-6.0.0-howto-fix-Cannot-apply-PATCH-to-navigation-property-_2700_x_2700_-on-entity-type_3F00_.aspx

[olumyde777]

Hi Egbertn,
Thanks for the source code.
It worked for me. You have really helped to solve a problem I had been on it for almost 5 months.
Thanks once again.

[bkwdesign]

Yes, we are currently using it in all our projects for several months now- I've put your code into a standalone assembly that I can reference in each WebAPI project

[yuhong-l]

I guess this issue is still not resolved? If so, which version? Try 6.1/7.0 failed.
We could only patch nested plain object without a key defined.
It wouldn't suppor entity like:

{
"id": "[guid]"
"name": "My Company",
"addresses": [{"id":"assa", "address": "siliconroad", "number": 123, "city": "LA", "zipcode": "2134324" }]
}

[Razgort]

Is it possible to do a patch method without delta ? only with type ?

[xuzhg]

@Razgort see #1775

[Razgort]

Yes i opened new issue about that

[Razgort]

It's here
http://technolog.nl/blogs/eprogrammer/archive/2017/04/30/OData-6.0.0-howto-fix-Cannot-apply-PATCH-to-navigation-property-_2700_x_2700_-on-entity-type_3F00_.aspx

Is there an equivalent for aspecore ?

[egbertn]

Here, again, it should not be done like this. References must be updated by item directly

Odata 'assumes' that a SQL database is used at the background, so in a database world, the one side of the relation, is and should be updated. The many side, just contains a reference to a primary / foreign key.
But still, if you badly want that feature, yes, I made such an attempt for .NET Core. It seems to work, though, I don't have a lot of time to support it.
https://github.com/egbertn/ODataDelta