387 lines
18 KiB
C#
387 lines
18 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text;
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namespace SqlSugar
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{
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public abstract partial class DbMaintenanceProvider : IDbMaintenance
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{
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#region DML
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public virtual List<DbTableInfo> GetViewInfoList(bool isCache = true)
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{
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string cacheKey = "DbMaintenanceProvider.GetViewInfoList";
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cacheKey = GetCacheKey(cacheKey);
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var result = new List<DbTableInfo>();
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if (isCache)
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result = GetListOrCache<DbTableInfo>(cacheKey, this.GetViewInfoListSql);
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else
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result = this.Context.Ado.SqlQuery<DbTableInfo>(this.GetViewInfoListSql);
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foreach (var item in result)
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{
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item.DbObjectType = DbObjectType.View;
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}
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return result;
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}
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public virtual List<DbTableInfo> GetTableInfoList(bool isCache = true)
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{
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string cacheKey = "DbMaintenanceProvider.GetTableInfoList";
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cacheKey = GetCacheKey(cacheKey);
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var result = new List<DbTableInfo>();
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if (isCache)
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result = GetListOrCache<DbTableInfo>(cacheKey, this.GetTableInfoListSql);
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else
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result = this.Context.Ado.SqlQuery<DbTableInfo>(this.GetTableInfoListSql);
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foreach (var item in result)
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{
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item.DbObjectType = DbObjectType.Table;
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}
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return result;
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}
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public virtual List<DbColumnInfo> GetColumnInfosByTableName(string tableName, bool isCache = true)
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{
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if (string.IsNullOrEmpty(tableName)) return new List<DbColumnInfo>();
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string cacheKey = "DbMaintenanceProvider.GetColumnInfosByTableName." + this.SqlBuilder.GetNoTranslationColumnName(tableName).ToLower();
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cacheKey = GetCacheKey(cacheKey);
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var sql = string.Format(this.GetColumnInfosByTableNameSql, tableName);
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if (isCache)
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return GetListOrCache<DbColumnInfo>(cacheKey, sql).GroupBy(it => it.DbColumnName).Select(it => it.First()).ToList();
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else
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return this.Context.Ado.SqlQuery<DbColumnInfo>(sql).GroupBy(it => it.DbColumnName).Select(it => it.First()).ToList();
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}
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public virtual List<string> GetIsIdentities(string tableName)
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{
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string cacheKey = "DbMaintenanceProvider.GetIsIdentities" + this.SqlBuilder.GetNoTranslationColumnName(tableName).ToLower();
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cacheKey = GetCacheKey(cacheKey);
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return this.Context.Utilities.GetReflectionInoCacheInstance().GetOrCreate(cacheKey, () =>
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{
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var result = GetColumnInfosByTableName(tableName).Where(it => it.IsIdentity).ToList();
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return result.Select(it => it.DbColumnName).ToList();
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});
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}
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public virtual List<string> GetPrimaries(string tableName)
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{
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string cacheKey = "DbMaintenanceProvider.GetPrimaries" + this.SqlBuilder.GetNoTranslationColumnName(tableName).ToLower();
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cacheKey = GetCacheKey(cacheKey);
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return this.Context.Utilities.GetReflectionInoCacheInstance().GetOrCreate(cacheKey, () =>
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{
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var result = GetColumnInfosByTableName(tableName).Where(it => it.IsPrimarykey).ToList();
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return result.Select(it => it.DbColumnName).ToList();
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});
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}
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#endregion
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#region Check
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public virtual bool IsAnyTable(string tableName, bool isCache = true)
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{
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tableName = this.SqlBuilder.GetNoTranslationColumnName(tableName);
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var tables = GetTableInfoList(isCache);
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if (tables == null) return false;
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else return tables.Any(it => it.Name.Equals(tableName, StringComparison.CurrentCultureIgnoreCase));
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}
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public virtual bool IsAnyColumn(string tableName, string columnName)
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{
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columnName = this.SqlBuilder.GetNoTranslationColumnName(columnName);
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tableName = this.SqlBuilder.GetNoTranslationColumnName(tableName);
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var isAny = IsAnyTable(tableName);
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Check.Exception(!isAny, string.Format("Table {0} does not exist", tableName));
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var columns = GetColumnInfosByTableName(tableName);
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if (columns.IsNullOrEmpty()) return false;
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return columns.Any(it => it.DbColumnName.Equals(columnName, StringComparison.CurrentCultureIgnoreCase));
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}
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public virtual bool IsPrimaryKey(string tableName, string columnName)
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{
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columnName = this.SqlBuilder.GetNoTranslationColumnName(columnName);
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var isAny = IsAnyTable(tableName);
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Check.Exception(!isAny, string.Format("Table {0} does not exist", tableName));
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var columns = GetColumnInfosByTableName(tableName);
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if (columns.IsNullOrEmpty()) return false;
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return columns.Any(it => it.IsPrimarykey = true && it.DbColumnName.Equals(columnName, StringComparison.CurrentCultureIgnoreCase));
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}
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public virtual bool IsIdentity(string tableName, string columnName)
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{
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columnName = this.SqlBuilder.GetNoTranslationColumnName(columnName);
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var isAny = IsAnyTable(tableName);
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Check.Exception(!isAny, string.Format("Table {0} does not exist", tableName));
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var columns = GetColumnInfosByTableName(tableName);
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if (columns.IsNullOrEmpty()) return false;
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return columns.Any(it => it.IsIdentity = true && it.DbColumnName.Equals(columnName, StringComparison.CurrentCultureIgnoreCase));
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}
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public virtual bool IsAnyConstraint(string constraintName)
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{
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return this.Context.Ado.GetInt("select object_id('" + constraintName + "')") > 0;
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}
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public virtual bool IsAnySystemTablePermissions()
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{
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this.Context.Ado.CheckConnection();
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string sql = this.CheckSystemTablePermissionsSql;
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try
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{
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var oldIsEnableLog = this.Context.Ado.IsEnableLogEvent;
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this.Context.Ado.IsEnableLogEvent = false;
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this.Context.Ado.ExecuteCommand(sql);
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this.Context.Ado.IsEnableLogEvent = oldIsEnableLog;
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return true;
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}
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catch
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{
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return false;
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}
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}
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#endregion
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#region DDL
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public virtual bool AddPrimaryKey(string tableName, string columnName)
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{
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tableName = this.SqlBuilder.GetTranslationTableName(tableName);
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columnName = this.SqlBuilder.GetTranslationTableName(columnName);
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string sql = string.Format(this.AddPrimaryKeySql, tableName, string.Format("PK_{0}_{1}", this.SqlBuilder.GetNoTranslationColumnName(tableName), this.SqlBuilder.GetNoTranslationColumnName(columnName)), columnName);
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this.Context.Ado.ExecuteCommand(sql);
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return true;
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}
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public bool AddPrimaryKeys(string tableName, string[] columnNames)
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{
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tableName = this.SqlBuilder.GetTranslationTableName(tableName);
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var columnName = string.Join(",", columnNames);
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string sql = string.Format(this.AddPrimaryKeySql, tableName, string.Format("PK_{0}_{1}", this.SqlBuilder.GetNoTranslationColumnName(columnNames.First()), this.SqlBuilder.GetNoTranslationColumnName(columnNames.First())), columnName);
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this.Context.Ado.ExecuteCommand(sql);
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return true;
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}
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public virtual bool AddColumn(string tableName, DbColumnInfo columnInfo)
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{
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tableName = this.SqlBuilder.GetTranslationTableName(tableName);
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string sql = GetAddColumnSql(tableName, columnInfo);
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this.Context.Ado.ExecuteCommand(sql);
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return true;
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}
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public virtual bool UpdateColumn(string tableName, DbColumnInfo column)
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{
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tableName = this.SqlBuilder.GetTranslationTableName(tableName);
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string sql = GetUpdateColumnSql(tableName, column);
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this.Context.Ado.ExecuteCommand(sql);
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return true;
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}
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public abstract bool CreateTable(string tableName, List<DbColumnInfo> columns, bool isCreatePrimaryKey = true);
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public virtual bool DropTable(string tableName)
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{
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tableName = this.SqlBuilder.GetTranslationTableName(tableName);
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this.Context.Ado.ExecuteCommand(string.Format(this.DropTableSql, tableName));
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return true;
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}
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public virtual bool DropColumn(string tableName, string columnName)
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{
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columnName = this.SqlBuilder.GetTranslationColumnName(columnName);
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tableName = this.SqlBuilder.GetTranslationTableName(tableName);
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this.Context.Ado.ExecuteCommand(string.Format(this.DropColumnToTableSql, tableName, columnName));
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return true;
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}
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public virtual bool DropConstraint(string tableName, string constraintName)
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{
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tableName = this.SqlBuilder.GetTranslationTableName(tableName);
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string sql = string.Format(this.DropConstraintSql, tableName, constraintName);
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this.Context.Ado.ExecuteCommand(sql);
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return true;
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}
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public virtual bool TruncateTable(string tableName)
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{
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tableName = this.SqlBuilder.GetTranslationTableName(tableName);
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this.Context.Ado.ExecuteCommand(string.Format(this.TruncateTableSql, tableName));
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return true;
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}
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public virtual bool BackupDataBase(string databaseName, string fullFileName)
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{
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var directory = FileHelper.GetDirectoryFromFilePath(fullFileName);
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if (!FileHelper.IsExistDirectory(directory))
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{
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FileHelper.CreateDirectory(directory);
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}
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this.Context.Ado.ExecuteCommand(string.Format(this.BackupDataBaseSql, databaseName, fullFileName));
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return true;
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}
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public virtual bool BackupTable(string oldTableName, string newTableName, int maxBackupDataRows = int.MaxValue)
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{
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oldTableName = this.SqlBuilder.GetTranslationTableName(oldTableName);
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newTableName = this.SqlBuilder.GetTranslationTableName(newTableName);
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string sql = string.Format(this.BackupTableSql, maxBackupDataRows, newTableName, oldTableName);
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this.Context.Ado.ExecuteCommand(sql);
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return true;
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}
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public virtual bool RenameColumn(string tableName, string oldColumnName, string newColumnName)
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{
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tableName = this.SqlBuilder.GetTranslationTableName(tableName);
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oldColumnName = this.SqlBuilder.GetTranslationColumnName(oldColumnName);
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newColumnName = this.SqlBuilder.GetTranslationColumnName(newColumnName);
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string sql = string.Format(this.RenameColumnSql, tableName, oldColumnName, newColumnName);
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this.Context.Ado.ExecuteCommand(sql);
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return true;
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}
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public virtual bool AddColumnRemark(string columnName, string tableName, string description)
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{
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string sql = string.Format(this.AddColumnRemarkSql, columnName, tableName, description);
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this.Context.Ado.ExecuteCommand(sql);
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return true;
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}
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public virtual bool DeleteColumnRemark(string columnName, string tableName)
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{
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string sql = string.Format(this.DeleteColumnRemarkSql, columnName, tableName);
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this.Context.Ado.ExecuteCommand(sql);
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return true;
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}
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public virtual bool IsAnyColumnRemark(string columnName, string tableName)
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{
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string sql = string.Format(this.IsAnyColumnRemarkSql, columnName, tableName);
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var dt=this.Context.Ado.GetDataTable(sql);
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return dt.Rows!=null&&dt.Rows.Count>0;
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}
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public virtual bool AddTableRemark(string tableName, string description)
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{
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string sql = string.Format(this.AddTableRemarkSql, tableName, description);
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this.Context.Ado.ExecuteCommand(sql);
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return true;
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}
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public virtual bool DeleteTableRemark(string tableName)
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{
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string sql = string.Format(this.DeleteTableRemarkSql,tableName);
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this.Context.Ado.ExecuteCommand(sql);
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return true;
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}
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public virtual bool IsAnyTableRemark(string tableName)
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{
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string sql = string.Format(this.IsAnyTableRemarkSql, tableName);
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var dt=this.Context.Ado.GetDataTable(sql);
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return dt.Rows != null && dt.Rows.Count > 0;
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}
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public virtual bool AddRemark(EntityInfo entity)
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{
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var db = this.Context;
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var columns = entity.Columns.Where(it => it.IsIgnore == false).ToList();
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foreach (var item in columns)
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{
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if (item.ColumnDescription != null)
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{
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//column remak
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if (db.DbMaintenance.IsAnyColumnRemark(item.DbColumnName, item.DbTableName))
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{
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db.DbMaintenance.DeleteColumnRemark(item.DbColumnName, item.DbTableName);
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db.DbMaintenance.AddColumnRemark(item.DbColumnName, item.DbTableName, item.ColumnDescription);
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}
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else
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{
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db.DbMaintenance.AddColumnRemark(item.DbColumnName, item.DbTableName, item.ColumnDescription);
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}
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}
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}
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//table remak
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if (entity.TableDescription != null)
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{
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if (db.DbMaintenance.IsAnyTableRemark(entity.DbTableName))
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{
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db.DbMaintenance.DeleteTableRemark(entity.DbTableName);
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db.DbMaintenance.AddTableRemark(entity.DbTableName, entity.TableDescription);
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}
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else
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{
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db.DbMaintenance.AddTableRemark(entity.DbTableName, entity.TableDescription);
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}
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}
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return true;
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}
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public virtual bool RenameTable(string oldTableName, string newTableName)
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{
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string sql = string.Format(this.RenameTableSql, oldTableName,newTableName);
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this.Context.Ado.ExecuteCommand(sql);
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return true;
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}
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#endregion
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#region Private
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private List<T> GetListOrCache<T>(string cacheKey, string sql)
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{
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return this.Context.Utilities.GetReflectionInoCacheInstance().GetOrCreate(cacheKey,
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() =>
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{
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var isEnableLogEvent = this.Context.Ado.IsEnableLogEvent;
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this.Context.Ado.IsEnableLogEvent = false;
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var result = this.Context.Ado.SqlQuery<T>(sql);
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this.Context.Ado.IsEnableLogEvent = isEnableLogEvent;
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return result;
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});
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}
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protected virtual string GetCreateTableSql(string tableName, List<DbColumnInfo> columns)
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{
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List<string> columnArray = new List<string>();
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Check.Exception(columns.IsNullOrEmpty(), "No columns found ");
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foreach (var item in columns)
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{
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string columnName = this.SqlBuilder.GetTranslationTableName(item.DbColumnName);
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string dataType = item.DataType;
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string dataSize = GetSize(item);
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string nullType = item.IsNullable ? this.CreateTableNull : CreateTableNotNull;
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string primaryKey = null;
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string identity = item.IsIdentity ? this.CreateTableIdentity : null;
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string addItem = string.Format(this.CreateTableColumn, columnName, dataType, dataSize, nullType, primaryKey, identity);
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columnArray.Add(addItem);
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}
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string tableString = string.Format(this.CreateTableSql, this.SqlBuilder.GetTranslationTableName(tableName), string.Join(",\r\n", columnArray));
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return tableString;
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}
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protected virtual string GetAddColumnSql(string tableName, DbColumnInfo columnInfo)
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{
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string columnName = this.SqlBuilder.GetTranslationColumnName(columnInfo.DbColumnName);
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tableName = this.SqlBuilder.GetTranslationTableName(tableName);
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string dataType = columnInfo.DataType;
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string dataSize = GetSize(columnInfo);
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string nullType = columnInfo.IsNullable ? this.CreateTableNull : CreateTableNotNull;
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string primaryKey = null;
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string identity = null;
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string result = string.Format(this.AddColumnToTableSql, tableName, columnName, dataType, dataSize, nullType, primaryKey, identity);
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return result;
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}
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protected virtual string GetUpdateColumnSql(string tableName, DbColumnInfo columnInfo)
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{
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string columnName = this.SqlBuilder.GetTranslationTableName(columnInfo.DbColumnName);
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tableName = this.SqlBuilder.GetTranslationTableName(tableName);
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string dataSize = GetSize(columnInfo);
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string dataType = columnInfo.DataType;
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string nullType = columnInfo.IsNullable ? this.CreateTableNull : CreateTableNotNull;
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string primaryKey = null;
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string identity = null;
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string result = string.Format(this.AlterColumnToTableSql, tableName, columnName, dataType, dataSize, nullType, primaryKey, identity);
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return result;
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}
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protected virtual string GetCacheKey(string cacheKey)
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{
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return this.Context.CurrentConnectionConfig.DbType + "." + this.Context.Ado.Connection.Database + "." + cacheKey;
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}
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protected virtual string GetSize(DbColumnInfo item)
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{
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string dataSize = null;
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var isMax = item.Length > 4000 || item.Length == -1;
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if (isMax)
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{
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dataSize = item.Length > 0 ? string.Format("({0})", "max") : null;
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}
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else if (item.Length == 0 && item.DecimalDigits > 0)
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{
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item.Length = 10;
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dataSize = string.Format("({0},{1})", item.Length, item.DecimalDigits);
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}
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else if (item.Length > 0 && item.DecimalDigits == 0)
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{
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dataSize = item.Length > 0 ? string.Format("({0})", item.Length) : null;
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}
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else if (item.Length > 0 && item.DecimalDigits > 0)
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{
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dataSize = item.Length > 0 ? string.Format("({0},{1})", item.Length, item.DecimalDigits) : null;
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}
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return dataSize;
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}
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#endregion
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}
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}
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