sitepv.blogg.se

1. #SCAFFOLD DBCONTEXT POSTGRESQL HOW TO#
2. #SCAFFOLD DBCONTEXT POSTGRESQL SOFTWARE#
3. #SCAFFOLD DBCONTEXT POSTGRESQL CODE#
4. #SCAFFOLD DBCONTEXT POSTGRESQL DOWNLOAD#

I know some developers can reject this design alleging there is a lot of code to scaffold a simple class with 4 properties but keep in mind CatFactory's way looks like a "clear" transcription of definitions.ĬatFactory.NetCore uses the model from CatFactory to allow scaffold C# code, so the question is: What is CatFactory.Dapper package?

#SCAFFOLD DBCONTEXT POSTGRESQL HOW TO#

StringBuilder was used to scaffold a class or interface in older versions of CatFactory, but some years ago there was a change about how to scaffold a definition (class or interface), CatFactory allows to define the structure for class or interface in a simple and clear way, then use an instance of CodeBuilder to scaffold in C#. So, CatFactory pretends to solve those limitations and provides a simple way to scaffold Entity Framework Core. With Entity Framework Core, I worked with command line to scaffold from the existing database, EF Core team provided a great tool with command line but there are still the same limitations above.

#SCAFFOLD DBCONTEXT POSTGRESQL SOFTWARE#

Generate code is a common task in software developer, most developers write a "code generator" in their lives.

#SCAFFOLD DBCONTEXT POSTGRESQL DOWNLOAD#

You can check the download statistics for CatFactory packages in NuGet Gallery. Get equivalent CLR type from column type var clrType = database.ResolveType(column).GetClrType() Read all columns foreach ( var column in table.Columns) Check identity on table's definition if (table.Identity != null) Check primary key on table's definition if (table.PrimaryKey = null) Read all tables foreach ( var table in database.Tables) Import from existing database var database = SqlServerDatabaseFactory.Import( " YourConnectionStringHere") Please let me know what you think about this implementation, makes sense?Īccording to feedback from developers and to provide a better experience for users, I'm working on some improvements to get a cleaner way to work with CatFactory: Working With Database The definition for Table, Columns, Identity and PrimaryKey already exists in CatFactory, so we can reuse those definitions for this purpose. In that way, we can have all "metadata" for all entities and get that definition to build queries in a dynamic way, so we can reduce code lines in our repositories.

PrimaryKey = new PrimaryKey( " ShipperID") Identity = new Identity( " ShipperID", 1, 1), What do you think about having metadata for entities in Dapper?.Does this implementation break Dapper concept?.So I'll provide a draft for query building and take your time to let me know your feedback and then please answer two questions: Of course, if I am wrong about this point, please let me know in the comments below.

I prefer to have an object that builds queries and in that way, reduce code lines quantity but I don't know if that concept breaks Dapper philosophy, I really want to know about that because scaffold high quality code is fundamental in CatFactory, so I don't want to add an implementation that breaks the main concept behind an ORM.Īnyway, I have invested some time to research about how can I solve query building for repositories and I have not found any object that allows to build a query from object's definition, there are frameworks that provide CRUD functions but something like LINQ there isn't, as I know. One of the things I don't like about Dapper is to have all definitions for queries in strings or string builders. Read more on: Concepts behind CatFactory. This package is the core for child packages, additional packages have been created with this naming convention: CatFactory. Scaffold objects, these methods read all objects from database and create instances for code buildersĬurrently, the following technologies are supported:.Build Features (One feature per schema).Create instance of Project (Entity Framework Core, Dapper, etc.).The flow to import an existing database is: We can also replace the database from SQL Server instance with an in-memory database. The concept behind CatFactory is to import an existing database from SQL Server instance and then to scaffold a target technology. CatFactory.EntityFrameworkCore GitHub Repository.