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394 lines
10 KiB
394 lines
10 KiB
using learun.database;
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using learun.iapplication;
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using learun.util;
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using System;
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using System.Collections.Generic;
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using System.Data;
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using System.Text;
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using System.Threading.Tasks;
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namespace learun.application
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{
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/// <summary>
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/// 版 本 EasyCode EC管理后台
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/// Copyright (c) 2019-present EC管理有限公司
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/// 创建人：tobin
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/// 日 期：2019.09.19
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/// 描 述：数据库表管理
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/// </summary>
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public class DatabaseTableService : ServiceBase
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{
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#region 获取数据
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/// <summary>
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/// 数据表列表
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/// </summary>
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/// <param name="code">数据库编码</param>
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/// <returns></returns>
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public Task<IEnumerable<dynamic>> GetTableList(string code)
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{
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return this.BaseRepository(code).GetDataBaseTable();
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}
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/// <summary>
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/// 数据表字段列表
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/// </summary>
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/// <param name="code">数据库编码</param>
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/// <param name="tableName">表名</param>
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/// <returns></returns>
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public Task<IEnumerable<dynamic>> GetTableFiledList(string code, string tableName)
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{
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return this.BaseRepository(code).GetDataBaseTableFields(tableName);
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}
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/// <summary>
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/// 数据库表数据列表
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/// </summary>
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/// <param name="code">数据库编码</param>
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/// <param name="tableName">表明</param>
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/// <param name="field">字段</param>
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/// <param name="logic">逻辑</param>
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/// <param name="keyword">关键字</param>
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/// <param name="pagination">分页参数</param>
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/// <returns></returns>
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public Task<DataTable> GetTableDataList(string code, string tableName, string field, string logic, string keyword, Pagination pagination)
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{
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StringBuilder strSql = new StringBuilder();
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strSql.Append("SELECT * FROM " + tableName + " WHERE 1=1");
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if (!string.IsNullOrEmpty(keyword) && !string.IsNullOrEmpty(logic) && logic != "Null" && logic != "NotNull")
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{
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strSql.Append(" AND " + field + " ");
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switch (logic)
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{
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case "Equal": //等于
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strSql.Append(" = ");
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break;
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case "NotEqual": //不等于
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strSql.Append(" <> ");
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break;
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case "Greater": //大于
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strSql.Append(" > ");
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break;
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case "GreaterThan": //大于等于
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strSql.Append(" >= ");
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break;
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case "Less": //小于
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strSql.Append(" < ");
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break;
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case "LessThan": //小于等于
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strSql.Append(" >= ");
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break;
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case "Like": //包含
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strSql.Append(" like ");
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keyword = "%" + keyword + "%";
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break;
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default:
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break;
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}
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strSql.Append("@keyword ");
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}
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if (logic == "Null")
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{
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strSql.Append(" AND " + field + " is null ");
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}
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else if (logic == "NotNull")
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{
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strSql.Append(" AND " + field + " is not null ");
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}
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return this.BaseRepository(code).FindTable(strSql.ToString(), new { keyword }, pagination);
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}
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/// <summary>
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/// 数据库表数据列表
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/// </summary>
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/// <param name="code">数据库编码</param>
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/// <param name="tableName">表名</param>
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/// <returns></returns>
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public Task<DataTable> GetTableDataList(string code, string tableName)
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{
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StringBuilder strSql = new StringBuilder();
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strSql.Append(" SELECT * FROM " + tableName);
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return this.BaseRepository(code).FindTable(strSql.ToString());
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}
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/// <summary>
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/// 数据库表数据列表
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/// </summary>
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/// <param name="code">数据库编码</param>
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/// <param name="strSql">表名</param>
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/// <returns></returns>
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public Task<IEnumerable<string>> GetSqlColName(string code, string strSql)
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{
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return this.BaseRepository(code).GetSqlColName(strSql);
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}
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#endregion 获取数据
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#region 提交数据
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/// <summary>
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/// 创建数据库表
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/// </summary>
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/// <param name="code">数据库编码</param>
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/// <param name="tableName"></param>
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/// <param name="tableRemark"></param>
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/// <param name="colList"></param>
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/// <returns></returns>
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public async Task<string> CreateTable(string code, string tableName, string tableRemark, List<DatabaseTableFieldModel> colList)
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{
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var db = this.BaseRepository(code).BeginTrans();
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try
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{
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string sql = "";
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switch (this.DBType(code))//SqlServer,Oracle,MySql
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{
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case "SqlServer":
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sql = GetSqlServerCreateTableSql(tableName, tableRemark, colList);
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await db.ExecuteSql(sql);
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break;
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case "MySql":
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sql = GetMySqlCreateTableSql(tableName, tableRemark, colList);
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await db.ExecuteSql(sql);
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break;
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case "Oracle":
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await GetOracleCreateTableSql(tableName, tableRemark, colList, db);
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break;
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}
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db.Commit();
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}
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catch (Exception)
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{
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db.Rollback();
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throw;
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}
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return "建表成功";
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}
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/// <summary>
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/// 获取sqlserver建表语句
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/// </summary>
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/// <param name="tableName">表名</param>
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/// <param name="tableRemark">表备注</param>
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/// <param name="colList">字段集合</param>
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/// <returns></returns>
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private string GetSqlServerCreateTableSql(string tableName, string tableRemark, List<DatabaseTableFieldModel> colList)
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{
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StringBuilder sql = new StringBuilder();
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sql.Append("CREATE TABLE " + tableName + " ( ");//表名
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foreach (var item in colList)
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{
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sql.Append(item.f_column + " " + item.f_datatype);//列名+类型
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if (item.f_datatype == "varchar" && !string.IsNullOrEmpty(item.f_length))
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{
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sql.Append("(" + item.f_length + ") ");//长度
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}
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if (item.f_key == "1")
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{
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sql.Append(" PRIMARY KEY ");//是否主键
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}
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else if (item.f_isnullable == "0")
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{
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sql.Append(" NOT NULL ");//是否为空
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}
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sql.Append(",");
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}
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sql.Remove(sql.Length - 1, 1);
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sql.Append(" )");
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foreach (var item in colList)
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{
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if (!string.IsNullOrEmpty(item.f_remark))
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{
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//添加列备注
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sql.Append(" execute sp_addextendedproperty 'MS_Description','" + item.f_remark + "','user','dbo','table','" + tableName + "','column','" + item.f_column + "';");
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}
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}
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//添加表备注
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if (!string.IsNullOrEmpty(tableRemark))
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{
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sql.Append(" execute sp_addextendedproperty 'MS_Description','" + tableRemark + "','user','dbo','table','" + tableName + "',null,null; ");
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}
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return sql.ToString();
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}
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/// <summary>
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/// 获取MySql建表语句
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/// </summary>
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/// <param name="tableName">表名</param>
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/// <param name="tableRemark">表备注</param>
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/// <param name="colList">字段集合</param>
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/// <returns></returns>
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private string GetMySqlCreateTableSql(string tableName, string tableRemark, List<DatabaseTableFieldModel> colList)
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{
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StringBuilder sql = new StringBuilder();
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sql.Append("CREATE TABLE " + tableName + " ( ");//表名
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foreach (var item in colList)
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{
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sql.Append(item.f_column + " " + item.f_datatype);//列名+类型
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if (item.f_datatype == "varchar" && !string.IsNullOrEmpty(item.f_length))
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{
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sql.Append("(" + item.f_length + ") ");//长度
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}
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if (item.f_key == "1")
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{
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sql.Append(" PRIMARY KEY ");//是否主键
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}
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else if (item.f_isnullable == "0")
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{
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sql.Append(" NOT NULL ");//是否为空
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}
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if (!string.IsNullOrEmpty(item.f_remark))
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{
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sql.Append(" COMMENT '" + item.f_remark + "'");//列备注
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}
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sql.Append(",");
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}
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sql.Remove(sql.Length - 1, 1);
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sql.Append(" )");
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//添加表备注
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if (!string.IsNullOrEmpty(tableRemark))
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{
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sql.Append(" ENGINE=InnoDB DEFAULT CHARSET=utf8 COMMENT='" + tableRemark + "';");
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}
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return sql.ToString();
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}
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/// <summary>
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/// 获取Oracle建表语句
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/// </summary>
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/// <param name="tableName">表名</param>
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/// <param name="tableRemark">表备注</param>
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/// <param name="colList">字段集合</param>
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/// <param name="db">数据库操作上下文</param>
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/// <returns></returns>
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private async Task GetOracleCreateTableSql(string tableName, string tableRemark, List<DatabaseTableFieldModel> colList, IRepository db)
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{
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StringBuilder sql = new StringBuilder();
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sql.Append("CREATE TABLE \"" + tableName.ToUpper() + "\" ( ");//表名
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foreach (var item in colList)
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{
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sql.Append("\"" + item.f_column.ToUpper() + "\" " + GetOracleDataType(item.f_datatype));//列名+类型
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if (item.f_datatype == "varchar" && !string.IsNullOrEmpty(item.f_length))
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{
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sql.Append("(" + item.f_length + " CHAR) ");//长度
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}
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if (item.f_key == "1")
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{
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sql.Append(" PRIMARY KEY NOT NULL ");//是否主键
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}
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else if (item.f_isnullable == "0")
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{
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sql.Append(" NOT NULL ");//是否为空
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}
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else
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{
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sql.Append(" NULL ");//是否为空
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}
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sql.Append(",");
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}
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sql.Remove(sql.Length - 1, 1);
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sql.Append(" )");
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await db.ExecuteSql(sql.ToString());
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////添加表备注
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if (!string.IsNullOrEmpty(tableRemark))
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{
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await db.ExecuteSql(" COMMENT ON TABLE \"" + tableName.ToUpper() + "\" is '" + tableRemark + "' ");
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}
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foreach (var item in colList)
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{
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if (!string.IsNullOrEmpty(item.f_remark))
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{
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//添加列备注
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await db.ExecuteSql(" COMMENT ON COLUMN \"" + tableName.ToUpper() + "\".\"" + item.f_column.ToUpper() + "\" is '" + item.f_remark + "'");
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}
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}
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}
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/// <summary>
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/// 获取字段类型
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/// </summary>
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/// <param name="dataType"></param>
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/// <returns></returns>
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private string GetOracleDataType(string dataType)
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{
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string res = "";
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switch (dataType)
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{
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case "varchar":
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res = "VARCHAR2";
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break;
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case "datetime":
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res = "DATE";
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break;
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case "int":
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case "decimal":
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res = "NUMBER(11)";
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break;
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}
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return res;
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}
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#endregion 提交数据
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#region 扩展方法
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/// <summary>
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/// 判断数据表字段重复
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/// </summary>
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/// <param name="keyValue">主键值</param>
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/// <param name="tableName">表名</param>
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/// <param name="keyName">主键名</param>
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/// <param name="filedsJson">数据字段</param>
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/// <returns></returns>
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public async Task<bool> ExistFiled(string keyValue, string tableName, string keyName, string filedsJson)
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{
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StringBuilder strSql = new StringBuilder();
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strSql.Append("select * from " + tableName + " where 1=1 ");
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if (!string.IsNullOrEmpty(keyValue))
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{
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strSql.Append(" AND " + keyName + " != @keyValue ");
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}
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var args = filedsJson.ToJObject();
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foreach (var item in args.Properties())
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{
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if (!string.IsNullOrEmpty(item.Value.ToString()))
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{
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strSql.Append(" AND " + item.Name + " = '" + item.Value + "'");
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}
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}
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var entity = await this.BaseRepository().FindEntity(strSql.ToString(), new { keyValue });
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if (entity == null)
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{
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return true;
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}
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else
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{
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return false;
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}
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}
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#endregion 扩展方法
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}
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}
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