I am using LINQ to talk to Dynamics CRM. I have found the DbFunctions class in the docs. But when I go to the definition it has NO methods. I want the DateDiffYear method, but I can find no samples online and it simply does not appear to be present in the reflected code?
OK, the docs are USELESS. You need to install EntityFrameworkCore.SqlServer for this to appear.
Thanks for being my rubber duck again, Stack Overflow!!!!
Related
I've started playing around with API Platform and it's looking like a fantastic but of kit and generally a quick Google or Stack Overflow search answers and questions I might have.
However, this one I'm struggling with and it could be a simple terminology issue...
How do I go about changing or overriding the automatic pluralisation of entity names? I.e. Fleet is becoming Fleets.
Any tips on where to look for documentation or any quick examples of how to do what I'm after? I'm using annotations.
Thanks in advance!
You can create custom Operation Path Resolver which doesn't use Inflector::pluralize().
There is section in docs about it (https://api-platform.com/docs/core/operation-path-naming/#create-a-custom-operation-path-resolver).
It requires creating custom class which implements OperationPathResolverInterface (https://github.com/api-platform/core/blob/master/src/PathResolver/OperationPathResolverInterface.php)
I am implementing a Wagtail powered blog within a larger (primarily DRF) driven app. I'm attempting to use drf-yasg for my documentation.
Since installing wagtail, the docs are now throwing
'Request' object has no attribute 'wagtailapi_router'
It looks to be related to the introspection that drf-yasg does, and all I can find about excluding views from drf-yasg is done at the code level. Being an installed module obviously I want to avoid that.
Has anyone got these 2 (3) components playing nicely together?
It's been a very long time since you asked this question, but as I found this while looking for an answer myself, I thought I might share what worked for me.
Note that I'm not using drf-yasg, but rather DRF's own schema generator. They do however have a lot in common.
The problem in my case was that the schema generator URL was defined like this:
path(
"schema/",
get_schema_view(title="My API Schema"),
name="openapi-schema",
),
What I needed to add was a patterns= argument that referenced my API specifically, leaving out the other non-API urls (like Wagtail):
path(
"v3/schema/",
get_schema_view(title="My API Schema", patterns=router.urls),
name="openapi-schema",
),
I hope that helps... someone :-D
The title says it all really. I've found several blogs with different ways (serializing the EF model to XML and then de-serializing again to the IEdmModel was one) but they're all based on old version of the OData package.
Serializing is the only way.
Example.
Relevant work.
I've ranted about this a few months ago. AFAIK nothing changed since then, and I personally don't expect them to change too much. The short story is that as of September 2012, there is no plan to use EdmLib in EF, nor is there to use EF's code in other projects.
How much should we align with OData’s EdmLib?
Not worth adopting code
Cost of implementing SSDL & MSL
Freedom to evolve our API independently
Look at aligning names of types and properties where appropriate
If your DbContext is being built from a database-first approach the given answer will fail giving this error:
Creating a DbModelBuilder or writing the EDMX from a DbContext created using Database First or Model First is not supported. EDMX can only be obtained from a Code First DbContext created without using an existing DbCompiledModel.
After some time messing with this I have found an appropriate solution. Basically you grab the CSDL resource from the assembly containing the DbContext in question and parse it using the Microsoft.Data.Edm.Csdl.CsdlReader.TryParse method. The resulting IEdmModel is valid containing the exact information given by EntityFramework when the model was built.
See here for an example with usage
I'm using the latest ASP.Net WebAPI Nightly builds (dated 2013-01-16).
I have a simple EF database first model at the moment that has two entities - Patients and Visits. Each patient can have many visits.
I'd like to be able to query for my list of patients and have the visits entities for each patient returned inline. I know that WebAPI's OData implementation doesn't yet support $expand. I'm hoping that just means that optional client-controlled expansion is not supported and that I can force expansion server-side.
At the moment I'm not getting any of the visits inline.
For example, my PatientController's() Get() method looks like
[Queryable(AllowedQueryOptions=AllowedQueryOptions.Supported)]
public override IQueryable<Patient> Get()
{
var query = this.entities.Patients.Include("Visits");
return query;
}
I've verified that the query executing against my database does indeed include the visit information.
To use a publicly available OData service as an example, if you use the service at http://services.odata.org/OData/OData.svc/, you can get a list of Suppliers. This is http://http://services.odata.org/OData/OData.svc/Suppliers.
You can also ask for a list of suppliers that includes the list of products using http://http://services.odata.org/OData/OData.svc/Suppliers?$expand=Products
Stepping through the ASP.NET code (via the symbols server) I've got to the System.Web.Http.OData.Formatter.Serialization.ODataEntityTypeSerializer and can see that it's CreatePropertyBag method, which builds up the list of properties to be serialized, just doesn't include the navigation properties, and they don't seem to be enumerated anywhere else apart from being written out as NavigationLinks.
I'm quite new to the ASP.NET world in general and have spent a week or so getting my head around the way things work (particularly with the changes made to OData at the end of 2012 and further changes made so far in 2013).
I suspect that if the ODataEntityTypeSerializer was to be modified (I'm happy to try) to embed this extra information in the appropriate spot (within each navigation link as an nested inline feed as best I can tell) then I'd be set.
Questions:
Have I overlooked something obvious and there's a flag I can set to turn on this behaviour? I can see why, if such a flag exists, it would be off by default (EF lazy loading and this flag wouldn't get on well)
If #1 is no, is there some other ODataEntityTypeSerializer that I could use? If so, how do I switch to it?
If #2 is no, any pointers for where I should start writing my own? Is there a place I can substitute in my own serializer or do I have to maintain my own fork of ASP.NET's Extensions project (as opposed to the Runtime project)
Thanks very much!
$expand is very high on our list of things to support for OData. But as far as I know, we don't have any flag to turn it on server-side. The formatter doesn't currently allow you to substitute your own serializers either. So I'm afraid your only option in the meantime is to create a fork and add support for $expand. If you manage to get it working, please consider sending a pull request our way:
http://aspnetwebstack.codeplex.com/SourceControl/network
You can try it already in webapi nightly builds.
Here is how to install it with nuget:
http://aspnetwebstack.codeplex.com/wikipage?title=Use%20Nightly%20Builds
I'm trying to create a new entity and have it appear in the 'My Finances' and 'Personal Assets' areas.
I am able to create the entity without problems using CreateEntityRequest.
If I create the entity manually I get a list of the variuos areas where I can display the entity.
How can I do the same thing programmatically?
Thanks,
David
You'd have to manipulate the SiteMap to do that; that's not something that's done in the metadata of the entity itself.
I was able do get this to work using the Microsoft.Crm.Sdk.IsvReadiness.SupportingItems.SiteMap class that comes with the SDK in conjunction with ExportXmlRequest and ImportXmlRequest.
Thanks,
David