Dapper.Mapper | Dapper multi mapping | Object-Relational Mapping library
kandi X-RAY | Dapper.Mapper Summary
kandi X-RAY | Dapper.Mapper Summary
Dapper is a micro-ORM that extends the IDbConnection interface with methods that map query results to objects. With Dapper's multi mapping feature you can map a single row to multiple objects and define the relations between those objects. Dapper.Mapper is an extension to Dapper which simplifies multi mapping by figuring out the relations between the different returned objects and automatically assigning them.
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QUESTION
I have a dotnet core class library that I have successfully been able to build using the dotnet cli "dotnet build --configuration Release". This is important because I am also building this project in Jenkins on a Linux server.
Recently, I needed to go in and make some modifications to the project. When building it again with "dotnet build --configuration Release", it built, but none of my changes and additions were present. Please note that it behaves consistently (successfully and unsuccessfully) between the Jenkins environment in Linux and my Windows 10 command prompt when using "dotnet build --configuration Release".
If I build with Visual Studio 2015 (which I assume uses MSBuild), all changes are then present after I build the class library, and all is right with the world.
I assume that there is something wrong with my project.json?
...ANSWER
Answered 2017-Feb-24 at 09:32You probably did it, but did you restart the service in linux?
QUESTION
I am using Dapper.Mapper for mapping Sql queries to my application classes directly. I believed Dapper.Mapper is just a syntactical sugar-coating over Dapper, the original ORM. But, I am still not able to head-start with it due to very less demos and examples. However I have tried this as per their git page:
...ANSWER
Answered 2017-Jul-26 at 09:09See the docs here, the example query uses select * and uses an inner join, so it's returning Employee AND Department objects. If it was only returning Employee objects, then the code would look like this:
QUESTION
I am trying to use Dapper in my project to speed up data loading (currently using EF6)
Here is my SQL
...ANSWER
Answered 2017-May-11 at 20:03Dapper maps things flat. At first this feels like a big pain because EF nests things so easily. But once you get over the initial pain you realize how simple, predictable, and performance-oriented it is. Maybe an extra 15 min. of query-crafting for untouchable performance.
I answered a similar question here return a list of data via stored proc to dapper.
You should be able to return multiple datasets (one for the parent item, one for the underlying tags, etc.) and combine them in your app tier.
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