Tutorials
- Details
- Written by Julie Jiang @Appeon
- Category: SnapObjects
- Hits: 289
User Rating: 0 / 5
This tutorial demonstrates the basics of creating, in SnapDevelop, a Web API with ASP.NET Core that will use SqlModelMapper as its data manipulation component.
In this tutorial, you will learn to:
- Create a Web API Project
- Test the API
- Add a Database Context
- Register the Database Context
- Add a SqlModelMapper Model
- Add a Service
- Perform CRUD Operations Using the Web API
- Call the Web API from PowerBuilder
To view the full content of the tutorial, see: https://www.appeon.com/support/documents/appeon_online_help/snapobjects/CRUD_Operations_with_SqlModelMapper/index.html.
- Details
- Written by Julie Jiang @Appeon
- Category: SnapObjects
- Hits: 223
User Rating: 0 / 5
This tutorial explains the basics of adding and performing data validation with SqlModelMapper using SnapDevelop. It provides you an example on how to integrate the data validation to your CRUD operations.
In this tutorial you will learn:
- What is data validation in SqlModelMapper
- How to add data validation to your models
- How to perform validation against tracked models
To view the full content of the tutorial, see: https://www.appeon.com/support/documents/appeon_online_help/snapobjects/Add_Data_Validation_to_SqlModelMapper/index.html.
- Details
- Written by Julie Jiang @Appeon
- Category: SnapObjects
- Hits: 192
User Rating: 0 / 5
This document will describe using transactions in SnapObjects. SnapObjects provides SqlModelMapper and SqlExecutor objects for performing CRUD operations to the database. All those objects explicitly and/or implicitly use DataContext's transaction APIs to manage transactions.
To view the full content of the document, see: https://www.appeon.com/support/documents/appeon_online_help/snapobjects/Working_with_Transactions_in_SnapObjects/index.html.
- Details
- Written by Julie Jiang @Appeon
- Category: SnapObjects
- Hits: 383
User Rating: 5 / 5
This document describes how to use Nested Models with SqlModelMapper. SnapObjects provides an object (SqlModelMapper) that simplifies the usage of nested models in multiple cascading dependent levels. SnapObjects provides APIs to manage the operations performed on these nested models.
Nested Models can represent complex relationships, such as Master-Detail-Detail. The Master-Detail relationship can be of cardinality types: one-to-one and one-to-many. The Master-Detail-Detail relationship can be of cardinality types: one-to-one-to-one and one-to-one-to-many. However, under certain circumstances, you can also manage N-Level relationships for single SQL Insert, Update or Delete operations.
To view the full content of the document, see: https://www.appeon.com/support/documents/appeon_online_help/snapobjects/Using_Nested_Models_in_SqlModelMapper/index.html.
- Details
- Written by Julie Jiang @Appeon
- Category: SnapObjects
- Hits: 495
User Rating: 0 / 5
This document will describe how to track actions with SqlModelMapper. SqlModelMapper enables you to track database table operations, as well as actions which encapsulate customized methods. These actions will be called when the SaveChanges() method of the SqlModelMapper is called. This enables you to perform several different tasks and operations on the data before the transaction is committed.
To view the full content of the document, see: https://www.appeon.com/support/documents/appeon_online_help/snapobjects/Tracking_Actions_in_SqlModelMapper/index.html.