mirror of
https://gitee.com/dotnetchina/OpenAuth.Net.git
synced 2025-04-05 08:37:28 +08:00
295 lines
13 KiB
C#
295 lines
13 KiB
C#
using System;
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using System.Collections.Generic;
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using System.ComponentModel;
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using System.Data;
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using System.Linq;
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using Autofac.Extensions.DependencyInjection;
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using Infrastructure;
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using Infrastructure.Utilities;
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using Microsoft.AspNetCore.Http;
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using Microsoft.EntityFrameworkCore;
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using Microsoft.EntityFrameworkCore.Infrastructure;
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using Microsoft.EntityFrameworkCore.Internal;
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using Microsoft.EntityFrameworkCore.Metadata;
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using Microsoft.Extensions.Configuration;
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using Microsoft.Extensions.Options;
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using OpenAuth.Repository;
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using OpenAuth.Repository.Domain;
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using OpenAuth.Repository.QueryObj;
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namespace OpenAuth.App
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{
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public class DbExtension
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{
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private List<DbContext> _contexts = new List<DbContext>();
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private IOptions<AppSetting> _appConfiguration;
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private IHttpContextAccessor _httpContextAccessor;
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public DbExtension(IOptions<AppSetting> appConfiguration, OpenAuthDBContext openAuthDbContext, IHttpContextAccessor httpContextAccessor)
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{
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_appConfiguration = appConfiguration;
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_httpContextAccessor = httpContextAccessor;
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_contexts.Add(openAuthDbContext); //如果有多个DBContext，可以按OpenAuthDBContext同样的方式添加到_contexts中
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}
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/// <summary>
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/// 获取数据库一个表的所有属性值及属性描述
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/// </summary>
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/// <param name="moduleName">模块名称/表名</param>
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/// <returns></returns>
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public List<KeyDescription> GetProperties(string moduleName)
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{
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var result = new List<KeyDescription>();
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const string domain = "openauth.repository.domain.";
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IEntityType entity = null;
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_contexts.ForEach(u =>
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{
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entity = u.Model.GetEntityTypes()
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.FirstOrDefault(u => u.Name.ToLower() == domain + moduleName.ToLower());
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});
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if (entity == null)
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{
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throw new Exception($"未能找到{moduleName}对应的实体类");
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}
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foreach (var property in entity.ClrType.GetProperties())
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{
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object[] objs = property.GetCustomAttributes(typeof(DescriptionAttribute), true);
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object[] browsableObjs = property.GetCustomAttributes(typeof(BrowsableAttribute), true);
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var description = objs.Length > 0 ? ((DescriptionAttribute) objs[0]).Description : property.Name;
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if (string.IsNullOrEmpty(description)) description = property.Name;
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//如果没有BrowsableAttribute或 [Browsable(true)]表示可见，其他均为不可见，需要前端配合显示
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bool browsable = browsableObjs == null || browsableObjs.Length == 0 ||
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((BrowsableAttribute) browsableObjs[0]).Browsable;
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var typeName = property.PropertyType.Name;
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if (Nullable.GetUnderlyingType(property.PropertyType) != null)
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{
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typeName = Nullable.GetUnderlyingType(property.PropertyType).Name;
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}
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result.Add(new KeyDescription
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{
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Key = property.Name,
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Description = description,
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Browsable = browsable,
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Type = typeName
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});
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}
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return result;
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}
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/// <summary>
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/// 获取数据库DbContext中所有的实体名称。
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/// <para>注意！并不能获取数据库中的所有表</para>
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/// </summary>
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public List<string> GetDbEntityNames()
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{
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var names = new List<string>();
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var models = _contexts.Select(u =>u.Model);
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foreach (var model in models)
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{
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// Get all the entity types information contained in the DbContext class, ...
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var entityTypes = model.GetEntityTypes();
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foreach (var entityType in entityTypes)
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{
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var tableNameAnnotation = entityType.GetAnnotation("Relational:TableName");
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names.Add(tableNameAnnotation.Value.ToString());
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}
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}
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return names;
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}
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/// <summary>
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/// 获取数据库表结构信息
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/// </summary>
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/// <param name="tableName"></param>
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/// <returns></returns>
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public IList<SysTableColumn> GetDbTableStructure(string tableName)
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{
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var dbtype = _appConfiguration.Value.DbTypes[_httpContextAccessor.GetTenantId()];
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if (dbtype == Define.DBTYPE_MYSQL)
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{
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return GetMySqlStructure(tableName);
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}
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else
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{
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return GetSqlServerStructure(tableName);
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}
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}
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/// <summary>
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/// 获取Mysql表结构信息
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/// </summary>
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/// <param name="tableName"></param>
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/// <returns></returns>
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private IList<SysTableColumn> GetMySqlStructure(string tableName)
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{
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var sql = $@"SELECT DISTINCT
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Column_Name AS ColumnName,
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'{ tableName}' as tableName,
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Column_Comment AS Comment,
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data_type as ColumnType,
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CASE
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WHEN data_type IN( 'BIT', 'BOOL', 'bit', 'bool') THEN
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'bool'
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WHEN data_type in('smallint','SMALLINT') THEN 'short'
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WHEN data_type in('tinyint','TINYINT') THEN 'bool'
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WHEN data_type IN('MEDIUMINT','mediumint', 'int','INT','year', 'Year') THEN
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'int'
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WHEN data_type in ( 'BIGINT','bigint') THEN
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'bigint'
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WHEN data_type IN('FLOAT', 'DOUBLE', 'DECIMAL','float', 'double', 'decimal') THEN
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'decimal'
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WHEN data_type IN('CHAR', 'VARCHAR', 'TINY TEXT', 'TEXT', 'MEDIUMTEXT', 'LONGTEXT', 'TINYBLOB', 'BLOB', 'MEDIUMBLOB', 'LONGBLOB', 'Time','char', 'varchar', 'tiny text', 'text', 'mediumtext', 'longtext', 'tinyblob', 'blob', 'mediumblob', 'longblob', 'time') THEN
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'string'
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WHEN data_type IN('Date', 'DateTime', 'TimeStamp','date', 'datetime', 'timestamp') THEN
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'DateTime' ELSE 'string'
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END AS EntityType,
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case WHEN CHARACTER_MAXIMUM_LENGTH>8000 THEN 0 ELSE CHARACTER_MAXIMUM_LENGTH end AS Maxlength,
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CASE
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WHEN COLUMN_KEY = 'PRI' THEN
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1 ELSE 0
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END AS IsKey,
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CASE
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WHEN Column_Name IN( 'CreateID', 'ModifyID', '' )
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OR COLUMN_KEY<> '' THEN
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0 ELSE 1
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END AS IsDisplay,
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1 AS IsColumnData,
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120 AS ColumnWidth,
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0 AS OrderNo,
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CASE
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WHEN IS_NULLABLE = 'NO' THEN
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0 ELSE 1
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END AS IsNull,
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CASE
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WHEN COLUMN_KEY <> '' THEN
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1 ELSE 0
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END AS IsReadDataset
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FROM
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information_schema.COLUMNS
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WHERE
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table_name = '{tableName}'";
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foreach (var context in _contexts)
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{
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var columns = context.Query<SysTableColumn>().FromSqlRaw(sql);
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var columnList = columns?.ToList();
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if (columnList != null && columnList.Any())
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{
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return columnList;
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}
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}
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return new List<SysTableColumn>();
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}
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/// <summary>
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/// 获取SqlServer表结构信息
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/// </summary>
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/// <param name="tableName"></param>
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/// <returns></returns>
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private IList<SysTableColumn> GetSqlServerStructure(string tableName)
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{
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var sql = $@"
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SELECT TableName,
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LTRIM(RTRIM(ColumnName)) AS ColumnName,
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Comment,
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CASE WHEN ColumnType = 'uniqueidentifier' THEN 'guid'
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WHEN ColumnType IN('smallint', 'INT') THEN 'int'
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WHEN ColumnType = 'BIGINT' THEN 'long'
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WHEN ColumnType IN('CHAR', 'VARCHAR', 'NVARCHAR',
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'text', 'xml', 'varbinary', 'image')
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THEN 'string'
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WHEN ColumnType IN('tinyint')
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THEN 'byte'
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WHEN ColumnType IN('bit')
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THEN 'bool'
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WHEN ColumnType IN('bit') THEN 'bool'
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WHEN ColumnType IN('time', 'date', 'DATETIME', 'smallDATETIME')
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THEN 'DateTime'
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WHEN ColumnType IN('smallmoney', 'DECIMAL', 'numeric',
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'money') THEN 'decimal'
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WHEN ColumnType = 'float' THEN 'float'
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ELSE 'string'
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END as EntityType,
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ColumnType,
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[Maxlength],
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IsKey,
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CASE WHEN ColumnName IN('CreateID', 'ModifyID', '')
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OR IsKey = 1 THEN 0
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ELSE 1
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END AS IsDisplay ,
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1 AS IsColumnData,
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CASE
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WHEN ColumnName IN('Modifier', 'Creator') THEN 130
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WHEN[Maxlength] < 110 AND[Maxlength] > 60 THEN 120
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WHEN[Maxlength] < 200 AND[Maxlength] >= 110 THEN 180
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WHEN[Maxlength] > 200 THEN 220
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ELSE 90
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END AS ColumnWidth ,
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0 AS OrderNo,
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--CASE WHEN IsKey = 1 OR t.[IsNull]=0 THEN 0
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-- ELSE 1 END
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t.[IsNull] AS
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[IsNull],
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CASE WHEN IsKey = 1 THEN 1 ELSE 0 END IsReadDataset,
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CASE WHEN IsKey!=1 AND t.[IsNull] = 0 THEN 0 ELSE NULL END AS EditColNo
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FROM (SELECT obj.name AS TableName ,
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col.name AS ColumnName ,
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CONVERT(NVARCHAR(100),ISNULL(ep.[value], '')) AS Comment,
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t.name AS ColumnType ,
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CASE WHEN col.length<1 THEN 0 ELSE col.length END AS[Maxlength],
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CASE WHEN EXISTS (SELECT 1
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FROM dbo.sysindexes si
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INNER JOIN dbo.sysindexkeys sik ON si.id = sik.id
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AND si.indid = sik.indid
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INNER JOIN dbo.syscolumns sc ON sc.id = sik.id
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AND sc.colid = sik.colid
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INNER JOIN dbo.sysobjects so ON so.name = si.name
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AND so.xtype = 'PK'
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WHERE sc.id = col.id
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AND sc.colid = col.colid)
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THEN 1
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ELSE 0
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END AS IsKey ,
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CASE WHEN col.isnullable = 1 THEN 1
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ELSE 0
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END AS[IsNull],
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col.colorder
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FROM dbo.syscolumns col
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LEFT JOIN dbo.systypes t ON col.xtype = t.xusertype
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INNER JOIN dbo.sysobjects obj ON col.id = obj.id
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AND obj.xtype IN ( 'U','V')
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-- AND obj.status >= 01
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LEFT JOIN dbo.syscomments comm ON col.cdefault = comm.id
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LEFT JOIN sys.extended_properties ep ON col.id = ep.major_id
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AND col.colid = ep.minor_id
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AND ep.name = 'MS_Description'
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LEFT JOIN sys.extended_properties epTwo ON obj.id = epTwo.major_id
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AND epTwo.minor_id = 0
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AND epTwo.name = 'MS_Description'
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WHERE obj.name = '{ tableName}') AS t
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ORDER BY t.colorder";
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foreach (var context in _contexts)
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{
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var columns = context.Query<SysTableColumn>().FromSqlRaw(sql);
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var columnList = columns?.ToList();
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if (columnList != null && columnList.Any())
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{
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return columnList;
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}
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}
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return new List<SysTableColumn>();
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}
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}
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} |