odata-v4

问题 What i receive from a DbGeography data type is in Location. { "@odata.context":"http://subdomain.mydomain.me/odata/$metadata#Pois","value":[ { "Id":"d57e6603-5530-4457-b041-6398b7182173","Name":"Demo Home","Address":"Zuidstraat 8 8630 Veurne","Location":{ "Geography":{ "CoordinateSystemId":4326,"WellKnownText":"POINT (51.515574 2.025285)","WellKnownBinary":null } },"TagId":"ec32e8f3-c0b8-4bcc-af6c-7059b1ef1a65","RouteId":null } ] } I have tried multiple POSTS, but none of them seem to succeed

来源： https://stackoverflow.com/questions/43080216/odata-property-with-internal-setter-like-updatedate

来源： https://stackoverflow.com/questions/38056941/syntax-for-aggregating-a-filtered-dataset-in-odata-v4-spec-using-apply

问题 Manipulate odata filter How can i manipulate filter in the backend and want the key value pairs of the filter query parameters? Expression would like below "?$filter =((Name eq 'John' or Name eq 'Grace Paul') and (Department eq 'Finance and Accounting'))" As there are 2 filters concatenated & how can i get the values like Filter 1: Key: Name Operator: eq Value: Name Operator: or Filter 2: Key: Name Operator: eq Value: Grace Paul Operator: and Filter 3: Key: Department Operator: eq Value:

问题 Using the sample code from Hassan Habib's Supercharging ASP.NET Core API with OData blog post, I am able to get the record count using an OData query of $count=true : What needs to be configured to get the response object to be wrapped in an OData context so that the @odata.count property will show? In my own ASP.NET Core web API project, I cannot get the simple $count parameter to work and I have no idea why. With Hassan's sample code, the response JSON is wrapped in an OData context and the

问题 I followed this asp.net tutorial by Mike Wasson, and managed to set up the related entities just fine, but when I applied this logic to my project the more complex entity relations (in that there are more of them; that's the only difference) wouldn't succeed in an OData call, I got a 404 with this payload: { "error": { "code": "", "message": "No HTTP resource was found that matches the request URI 'http://localhost:19215/Menus(c94f7f98-6987-e411-8119-984be10349a2)/MenuPermissions'.",

问题 I followed this asp.net tutorial by Mike Wasson, and managed to set up the related entities just fine, but when I applied this logic to my project the more complex entity relations (in that there are more of them; that's the only difference) wouldn't succeed in an OData call, I got a 404 with this payload: { "error": { "code": "", "message": "No HTTP resource was found that matches the request URI 'http://localhost:19215/Menus(c94f7f98-6987-e411-8119-984be10349a2)/MenuPermissions'.",

问题 I have the following url: {{hostUrl}}/odata/TasksOData?$select=Id,Name,State,TaskRuns,LastChangedAt,LastChangedBy&$expand=TaskRuns($orderby=RunAt desc;$top=1;$select=Status,RunAt,RunBy)&$top=16&$orderby=TaskRuns/RunBy I want to order Tasks by property from TaskRuns(RunBy). TaskRuns being a collection I want to take into consideration only first item. I get error: "message": "The parent value for a property access of a property 'RunBy' is not a single value. Property access can only be applied

问题 I want to get a list of distinct values from my OData endpoint. But distinct or group by isn't supported yet. My URI query looks something like this GET /odata/Products?$select=foo & $top=10 & $count=true & distinct=true My Controller [EnableQuery] public IQueryable<FooBarBaz> Get(ODataQueryOptions<FooBarBaz> queryOptions, bool distinct) { //I've tried the following return Repository.AsQueryable().Distinct(); // and return Repository.AsQueryable().GroupBy(x => x.Foo); // and IQueryable query

问题 I am currently using OData V4 and wish to join 2 tables Account and Product: The tables are as follows: Account: Id, Name, Address, ColorCode, Product: Id, AccountId AccountId in the Product table is a foreign key mapped to the Id field in the Account table In my builder I have : var ProductType= builder.EntityType<Product>(); When I build the Product entity I wish to get the "ColorCode" values from the Account entity. How can i establish this relationship in the model builder? I would like