Ef also allows you call arbitrary stored procedures from your code. Use the maptostoredprocedures method to map an entity with the. In this article, weve looked at how to use entity framework and stored procedures in a variety of ways. Mapping stored procedure with custom entity feb 23, 2011 09. Entity framework has the ability to automatically build native commands for the database based on your linqtoentities or entity sql queries, as well as build the commands for inserting, updating, and deleting data. Where i can find any example of using stored procedures with client composition on dbset in entity framework 7 context. Currently, im using the approach found here using the designer in this approach, i import a stored procedure, create a function import and use a complex type as my mapped object. The entity framework allows you to use stored procedures in the entity data model. Bipin joshi is an independent software consultant, trainer, author, yoga.
Mapping stored procedure results to a custom entity in. View and stored procedure mappings with the entity framework. So, firstofall, we will add a model class in our project and create a database using migrations and then we will create stored procedures for insert, update and delete using fluent api. In this class, i overrode the onmodelcreating method to map the stored procedure with the. Mapping a stored procedure to an entity with entity. This article describes the methods for entity framework stored procedure mapping. You can use stored procedures to perform predefined logic on database tables. Entity framework stored procedure mapping out parameter not recognized. The microsoft entity framework is a powerful object relational mapping orm library that allows developers to rapidly build applications with database backends.
You can use entity framework to map your stored procedures, or you can call them manually. You may want to override these steps and use your own predefined stored procedures. Mapping a stored procedure to an entity with entity framework november 23, 2009. Stored procedure mapping in ef 6 codefirst entity framework. I dont like this because it relies on a bloated edmx file and it causes merge conflicts in source control when two or more people perform this procedure and check. The pitfalls of mapping the entity framework to stored procedures. Under entity framework, stored procedures are referred as function imports. Items userid pk username userdate userdetails userid fk result percentage i have an update stored procedure as below. For most projects, the entity framework can be granted direct table access to manipulate records in the database with many useful features however some projects require that the database be accessed and modified through. Discover how to map and call stored procedures in mvc 5. The stored procedure returns the id of a course with its credits. I need to connect the relationship with two objects, whose relationship is. We can also map the result of the function back to any entity type or complex type.
Working with stored procedures in entity framework part 2. Entity framework 6 codefirst provides the ability to create and use a stored procedure for add, update, and delete operations when the savechanges method is called. Lets use stored procedures for the cud create, update, delete operations for the following student entity. A guide too much of the literature about the entity framework contains directions for mapping directly to stored procedures. Entity framework calling a stored procedure without mapping. Hi obrienkev, you should map the stored procedure for the special. Mapping stored procedure with custom entity the asp. In this class, i overrode the onmodelcreating method to map the stored procedure with the employeemaster entity.
Working with stored procedures using entity framework. Also, we can use stored procedures with entity framework, or an ioc to map the model. The context class has methods that execute certain stored procedures using sqlquery. Then map your insert, update and delete stored procs for this viewbased entity as you did originally for your table. It can also specify that ef should use your stored procedures for inserting, updating, or deleting entities. Pay attention that this stored procedure is simple and its only to show how to perform the mapping to a custom entity. Have entity framework use this myview instead of mytable.
Entity framework stored procedure mapping sensible dev. Sadly, entity framework stored procedure functionality is more limited in. By default, the entity framework automatically generates the sql statements for the cud operations, but you can also map stored procedures. Mapping stored procedure results to a custom entity in entity. Then click on the stored procedure mapping menu option to open. Learn how to map stored procedures to an entity in entity framework 6 codefirst approach. Hopefully that in the next release of entity framework we will get the ability to map stored procedures to custom entities instead of using the. Working with stored procedures in entity framework part 1. I have created a package containing a stored procedure to update a row in a table.