/// </summary> /// <param name="property"></param> /// <returns></returns> private static string IsNotNull(System.Reflection.PropertyInfo property) { var hasRequiredAttribute = property.GetCustomAttributes(typeo
MaxStringLength { get; private set; } public bool StoreAsText { get; private set; } public Column(PropertyInfo prop, CreateFlags createFlags = CreateFlags.None) { var colAttr = prop.CustomAttributes.FirstOrDefault(x => x.AttributeType == typeof(ColumnAttribute)); _prop = prop; Name = ...
在使用 Entity Framework Core (EF Core) 的 Code First 模式时,如果你想在 SQLite 数据库中存储 JsonDocument or DateTime 类型的数据,需要确保数据类型的正确映射。 注意: - `SQLite` 默认没有 `JsonDocument` 类型,而是使用 `json` 或 `TEXT` 类型来存储 `JSON` 值。 - `SQLite` 默认没有一个单独的用...
SQL default value (Decorate columns with theSqlDefaultValueAttribute, which is part of this library) Either get the assembly from the latestGitHub Release Pageor install the NuGet-PackageSQLite.CodeFirst(PM> Install-Package SQLite.CodeFirst). ...
using a windows-identity-name attribute (ref: http://phonegap.com/blog/2016/04/25/windows-10-and-phonegap-cli-6_1-now-on-build/); "WindowsStoreIdentityName" setting (ref: https://cordova.apache.org/docs/en/latest/config_ref/). Installation test Easy installation test Use window.sqlitePl...
the code generates a new table with a plural name. The PrimaryKey and AutoIncrement attributes applied to the Id property make this the primary key in the Customers table with automatic increment. The NotNull attribute applied to the CompanyName property marks this as required, which implies tha...
因为要使用到了CodeFirst了,所以我们必须要对我们的实体类 Model 进行配置,当然也有很多的小伙伴,使用的是EFCore,当然是可以的,EFCore不需要对实体类进行处理,只是需要额外的配置上下文和Map映射,比如这样: EFCore的我就不多少了,很简单,如果有不会的小伙伴,可以看我的第二个系列的《让你明白DDD的小故事 & EF...
Sean.Core.DbRepository.CodeFirstAttribute Class 标记为CodeFirst的类 System.ComponentModel.DataAnnotations.Schema.TableAttribute Class 设置表名 Sean.Core.DbRepository.SequenceAttribute Property 设置序列号名称(生成自增Id) System.ComponentModel.DataAnnotations.KeyAttribute Property 标记为主键字段 System.ComponentModel...
userSchema.addField("sex",Int::class.java,FieldAttribute.REQUIRED) } oldVersion.plus(1) } } } 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 同时对User表增加数据的时候,需要设置sex的值。这样就ok了。 不过数据迁移的时候只能读取Realm后缀的文件,例如db文件貌似不支持。
step = step def iterate(self, idx): """ Iterate is called repeatedly by the SQLite database engine until the required number of rows has been read **or** the function raises a `StopIteration` signalling no more rows are available. """ if self.current > self.stop: raise StopIteration ...