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增加虚谷支持,基础版本
This commit is contained in:
bob.li
511
Providers/FreeSql.Provider.Xugu/XuguCodeFirst.cs
Normal file
511
Providers/FreeSql.Provider.Xugu/XuguCodeFirst.cs
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@@ -0,0 +1,511 @@
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using FreeSql.Internal;
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using FreeSql.Internal.Model;
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using System;
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using System.Collections;
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using System.Collections.Generic;
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using System.Data;
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using System.Linq;
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using System.Net;
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using System.Net.NetworkInformation;
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using System.Numerics;
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using System.Text;
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using System.Text.RegularExpressions;
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using XuguClient;
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namespace FreeSql.Xugu
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{
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class XuguCodeFirst : Internal.CommonProvider.CodeFirstProvider
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{
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public readonly string DefaultSchema = "SYSDBA";//默认模式
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public XuguCodeFirst(IFreeSql orm, CommonUtils commonUtils, CommonExpression commonExpression) : base(orm, commonUtils, commonExpression) {
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}
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static object _dicCsToDbLock = new object();
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static Dictionary<string, CsToDb<XGDbType>> _dicCsToDb = new Dictionary<string, CsToDb<XGDbType>>() {
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{
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typeof(byte).FullName,
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CsToDb.New(XGDbType.SmallInt, "TINYINT","TINYINT NOT NULL", false, false, 0)
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},
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{ typeof(byte?).FullName, CsToDb.New(XGDbType.SmallInt, "TINYINT", "TINYINT", false, true, null) },
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{ typeof(short).FullName, CsToDb.New(XGDbType.SmallInt, "SMALLINT","SMALLINT NOT NULL", false, false, 0) },{ typeof(short?).FullName, CsToDb.New(XGDbType.SmallInt, "SMALLINT", "SMALLINT", false, true, null) },
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{ typeof(int).FullName, CsToDb.New(XGDbType.Int, "INTEGER","INTEGER NOT NULL", false, false, 0) },{ typeof(int?).FullName, CsToDb.New(XGDbType.Int, "INTEGER", "INTEGER", false, true, null) },
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{ typeof(long).FullName, CsToDb.New(XGDbType.BigInt, "BIGINT","BIGINT NOT NULL", false, false, 0) },{ typeof(long?).FullName, CsToDb.New(XGDbType.BigInt, "BIGINT", "BIGINT", false, true, null) },
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{ typeof(ushort).FullName, CsToDb.New(XGDbType.Int, "INT","INT NOT NULL", false, false, 0) },{ typeof(ushort?).FullName, CsToDb.New(XGDbType.Int, "INT", "INT", false, true, null) },
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{ typeof(uint).FullName, CsToDb.New(XGDbType.BigInt, "BIGINT","BIGINT NOT NULL", false, false, 0) },{ typeof(uint?).FullName, CsToDb.New(XGDbType.BigInt, "BIGINT", "BIGINT", false, true, null) },
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{ typeof(ulong).FullName, CsToDb.New(XGDbType.Numeric, "NUMERIC","NUMERIC(20,0) NOT NULL", false, false, 0) },{ typeof(ulong?).FullName, CsToDb.New(XGDbType.Numeric, "NUMERIC", "NUMERIC(20,0)", false, true, null) },
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{ typeof(float).FullName, CsToDb.New(XGDbType.Real, "FLOAT","FLOAT NOT NULL", false, false, 0) },{ typeof(float?).FullName, CsToDb.New(XGDbType.Real, "FLOAT", "FLOAT", false, true, null) },
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{ typeof(double).FullName, CsToDb.New(XGDbType.Double, "DOUBLE","DOUBLE NOT NULL", false, false, 0) },{ typeof(double?).FullName, CsToDb.New(XGDbType.Double, "DOUBLE", "DOUBLE", false, true, null) },
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{ typeof(decimal).FullName, CsToDb.New(XGDbType.Numeric, "NUMERIC", "NUMERIC(10,2) NOT NULL", false, false, 0) },{ typeof(decimal?).FullName, CsToDb.New(XGDbType.Numeric, "NUMERIC", "NUMERIC(10,2)", false, true, null) },
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{ typeof(string).FullName, CsToDb.New(XGDbType.VarChar, "VARCHAR", "VARCHAR(255)", false, null, "") },
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{ typeof(char).FullName, CsToDb.New(XGDbType.Char, "CHAR", "CHAR(1)", false, null, '\0') },
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//{ typeof(TimeSpan).FullName, CsToDb.New(XGDbType.Time, "time","time NOT NULL", false, false, 0) },{ typeof(TimeSpan?).FullName, CsToDb.New(XGDbType.Time, "time", "time",false, true, null) },
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{ typeof(DateTime).FullName, CsToDb.New(XGDbType.DateTime, "DATETIME", "DATETIME NOT NULL", false, false, new DateTime(1970,1,1)) },
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{ typeof(DateTime?).FullName, CsToDb.New(XGDbType.DateTime, "DATETIME", "DATETIME", false, true, null) },
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{ typeof(bool).FullName, CsToDb.New(XGDbType.Bool, "BOOLEAN","BOOLEAN NOT NULL", null, false, false) },{ typeof(bool?).FullName, CsToDb.New(XGDbType.Bool, "BOOLEAN","BOOLEAN", null, true, null) },
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{ typeof(byte[]).FullName, CsToDb.New(XGDbType.VarBinary, "blob", "blob NULL", false, null, new byte[0]) },
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{ typeof(Guid).FullName, CsToDb.New(XGDbType.Char, "char", "char(36) NOT NULL", false, false, Guid.Empty) },{ typeof(Guid?).FullName, CsToDb.New(XGDbType.Char, "char", "char(36) NULL", false, true, null) },
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//{ typeof(Dictionary<string, string>).FullName, CsToDb.New(XGDbType.Hstore, "hstore", "hstore", false, null, new Dictionary<string, string>()) },
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};
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public override DbInfoResult GetDbInfo(Type type)
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{
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_dicCsToDb.TryGetValue(type.FullName, out var info);
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if (info == null) return null;
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return new DbInfoResult((int)info.type, info.dbtype, info.dbtypeFull, info.isnullable, info.defaultValue);
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}
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internal static string GetXuguSqlTypeFullName(object[] row)
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{
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var a = row;
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var sqlType = string.Concat(a[1]).ToUpper();
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var data_length = long.Parse(string.Concat(a[2]));
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var char_used = string.Concat(a[5]);
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bool.TryParse(a[9]?.ToString(), out var isVar);
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if (sqlType == "CHAR" && isVar)
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{
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sqlType = "VARCHAR";
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}
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if (data_length <= 0)
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{
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}
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else if (sqlType.StartsWith("TIMESTAMP", StringComparison.CurrentCultureIgnoreCase))
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{
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}
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else if (sqlType.StartsWith("DATETIME", StringComparison.CurrentCultureIgnoreCase))
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{
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}
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else if (sqlType.StartsWith("BLOB"))
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{
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}
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else if (sqlType.StartsWith("CLOB"))
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{
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}
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else if (sqlType.ToUpper()== "NUMERIC")
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{
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//data_length=655362
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//实际类型是 NUMRIC(10,2) 计算得到的是 NUMRIC(10,12)
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//标度计算错误
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var data_precision= data_length % 65536;
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var data_scale = data_length / 65536;
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sqlType += $"({data_scale},{data_precision})";
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}
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else if (sqlType.ToLower() == "float")
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{ }
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else
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sqlType += $"({data_length})";
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return sqlType;
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}
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protected override string GetComparisonDDLStatements(params TypeAndName[] objects)
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{
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var sb = new StringBuilder();
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var seqcols = new List<NativeTuple<ColumnInfo, string[], bool>>(); //序列
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foreach (var obj in objects)
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{
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if (sb.Length > 0) sb.Append("\r\n");
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var tb = _commonUtils.GetTableByEntity(obj.entityType);
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if (tb == null) throw new Exception(CoreStrings.S_Type_IsNot_Migrable(obj.entityType.FullName));
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if (tb.Columns.Any() == false) throw new Exception(CoreStrings.S_Type_IsNot_Migrable_0Attributes(obj.entityType.FullName));
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var tbname = _commonUtils.SplitTableName(tb.DbName);
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if (tbname?.Length == 1) tbname = new[] { DefaultSchema, tbname[0] };
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var tboldname = _commonUtils.SplitTableName(tb.DbOldName); //旧表名
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if (tboldname?.Length == 1) tboldname = new[] { DefaultSchema, tboldname[0] };
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if (string.IsNullOrEmpty(obj.tableName) == false)
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{
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var tbtmpname = _commonUtils.SplitTableName(obj.tableName);
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if (tbtmpname?.Length == 1) tbtmpname = new[] { DefaultSchema, tbtmpname[0] };
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if (tbname[0] != tbtmpname[0] || tbname[1] != tbtmpname[1])
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{
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tbname = tbtmpname;
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tboldname = null;
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}
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}
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//codefirst 不支持表名、模式名、数据库名中带 .
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if (_orm.Ado.ExecuteScalar(CommandType.Text, _commonUtils.FormatSql(" select 1 from all_schemas where schema_name={0}", tbname[0])) == null) //创建模式
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throw new Exception($"模式“{tbname[0]}”不存在，请手动创建");
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//sb.Append($"CREATE SCHEMA {tbname[0]};\r\n");
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//sb.Append("CREATE SCHEMA IF NOT EXISTS ").Append(tbname[0]).Append(";\r\n");
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var sbalter = new StringBuilder();
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var istmpatler = false; //创建临时表，导入数据，删除旧表，修改
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//虚谷
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var sql0 = string.Format("select 1 from all_tables a inner join all_schemas b on b.schema_id = a.schema_id where b.schema_name || '.' || a.table_name = '{0}.{1}'", tbname);
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//判断表是否存在
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if (_orm.Ado.ExecuteScalar(CommandType.Text, sql0) == null)
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{
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//表不存在
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if (tboldname != null)
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{
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if (_orm.Ado.ExecuteScalar(CommandType.Text, string.Format(" select 1 from all_tables a inner join all_schemas b on b.schema_id = a.schema_id where b.schema_name || '.' || a.table_name = '{0}.{1}'", tboldname)) == null)
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//旧表不存在
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tboldname = null;
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}
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if (tboldname == null)
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{
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//创建表
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var createTableName = _commonUtils.QuoteSqlName($"{tbname[0]}.{tbname[1]}");
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sb.Append("CREATE TABLE ").Append(createTableName).Append(" ( ");
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foreach (var tbcol in tb.ColumnsByPosition)
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{
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sb.Append(" \r\n ").Append(_commonUtils.QuoteSqlName(tbcol.Attribute.Name)).Append(" ");
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if (tbcol.Attribute.IsIdentity == true)
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{
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sb.Append(tbcol.Attribute.DbType.Replace("NOT NULL",""));
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sb.Append(" identity(1,1)");
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//seqcols.Add(NativeTuple.Create(tbcol, tbname, true));
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}
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else
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{
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sb.Append(tbcol.Attribute.DbType.Replace("NTEXT", "CLOB").Replace("TEXT", "CLOB"));
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}
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sb.Append(",");
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}
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if (tb.Primarys.Any())
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{
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var pkname = $"{tbname[0]}_{tbname[1]}_pkey";
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sb.Append(" \r\n CONSTRAINT ").Append(_commonUtils.QuoteSqlName(pkname)).Append(" PRIMARY KEY (");
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foreach (var tbcol in tb.Primarys) sb.Append(_commonUtils.QuoteSqlName(tbcol.Attribute.Name)).Append(", ");
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sb.Remove(sb.Length - 2, 2).Append("),");
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}
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sb.Remove(sb.Length - 1, 1);
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sb.Append("\r\n);\r\n");
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//创建表的索引
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foreach (var uk in tb.Indexes)
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{
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sb.Append("CREATE ");
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if (uk.IsUnique) sb.Append("UNIQUE ");
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sb.Append("INDEX ").Append(_commonUtils.QuoteSqlName(ReplaceIndexName(uk.Name, tbname[1]))).Append(" ON ").Append(createTableName).Append("(");
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foreach (var tbcol in uk.Columns)
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{
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sb.Append(_commonUtils.QuoteSqlName(tbcol.Column.Attribute.Name));
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if (tbcol.IsDesc) sb.Append(" DESC");
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sb.Append(", ");
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}
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sb.Remove(sb.Length - 2, 2).Append(");\r\n");
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}
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//备注
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foreach (var tbcol in tb.ColumnsByPosition)
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{
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if (string.IsNullOrEmpty(tbcol.Comment) == false)
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sb.Append("COMMENT ON COLUMN ").Append(_commonUtils.QuoteSqlName($"{tbname[0]}.{tbname[1]}.{tbcol.Attribute.Name}")).Append(" IS ").Append(_commonUtils.FormatSql("{0}", tbcol.Comment)).Append(";\r\n");
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}
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if (string.IsNullOrEmpty(tb.Comment) == false)
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sb.Append("COMMENT ON TABLE ").Append(_commonUtils.QuoteSqlName($"{tbname[0]}.{tbname[1]}")).Append(" IS ").Append(_commonUtils.FormatSql("{0}", tb.Comment)).Append(";\r\n");
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continue;
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}
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//如果新表，旧表在一个数据库和模式下，直接修改表名
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if (string.Compare(tbname[0], tboldname[0], true) == 0)
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sbalter.Append("ALTER TABLE ").Append(_commonUtils.QuoteSqlName($"{tboldname[0]}.{tboldname[1]}")).Append(" RENAME TO ").Append(_commonUtils.QuoteSqlName($"{tbname[1]}")).Append(";\r\n");
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else
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{
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//如果新表，旧表不在一起，创建新表，导入数据，删除旧表
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istmpatler = true;
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}
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}
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else
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tboldname = null; //如果新表已经存在，不走改表名逻辑
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var sql = _commonUtils.FormatSql($@"
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select
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a.COL_NAME,
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a.TYPE_NAME,
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a.SCALE,
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case when a.NOT_NULL then '0' else '1' end as is_nullable,
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seq.SEQ_ID,
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seq.IS_SYS,
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a.COMMENTS,
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tb.table_name,
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ns.schema_id,
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a.`VARYING`
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from all_columns as a
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left join all_tables tb on a.table_id=tb.table_id
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left join all_schemas ns on tb.schema_id = ns.schema_id
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left join all_sequences seq on seq.SEQ_ID=a.Serial_ID
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WHERE ns.SCHEMA_NAME={{0}} and tb.TABLE_NAME={{1}}
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", tboldname ?? tbname);
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var ds = _orm.Ado.ExecuteArray(CommandType.Text, sql);
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//从系统表读取的现有字段的基本信息
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var tbstruct = ds.ToDictionary(a => string.Concat(a[0]), a =>
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{
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var sqlType = GetXuguSqlTypeFullName(a);
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var max_length = long.Parse(string.Concat(a[2]));
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//long SEQ_ID = 0;
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long.TryParse(a[4]?.ToString() ?? "0", out long SEQ_ID);
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var SEQ_IS_SYS = (a[5]?.ToString() ?? "false")?.ToLower();
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try
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{
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return new
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{
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column = string.Concat(a[0]),
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sqlType = string.Concat(sqlType),
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max_length = long.Parse(string.Concat(a[2]) ?? "0"),
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is_nullable = string.Concat(a[3]) == "1",
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is_identity = (SEQ_ID > 0 && SEQ_IS_SYS == "true"),
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comment = string.Concat(a[6])
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};
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}
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catch (Exception ex)
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{
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throw ex;
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}
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}, StringComparer.CurrentCultureIgnoreCase);
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if (istmpatler == false)
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{
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//基本信息对比 比如名称 添加列 数据类型 Identity
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foreach (var tbcol in tb.ColumnsByPosition)
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{
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//对别数据库中列和C#中的信息是否一致
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if (tbstruct.TryGetValue(tbcol.Attribute.Name, out var tbstructcol) ||
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string.IsNullOrEmpty(tbcol.Attribute.OldName) == false && tbstruct.TryGetValue(tbcol.Attribute.OldName, out tbstructcol))
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{
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var isCommentChanged = tbstructcol.comment != (tbcol.Comment ?? "");
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var sqlTypeSize = tbstructcol.sqlType;
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//如果数据中是CHAR或VARCHAR 要加上C#中定义的长度
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if (sqlTypeSize.Contains("(") == false)
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{
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switch (sqlTypeSize)
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{
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case "char":
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case "varchar":
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sqlTypeSize = $"{sqlTypeSize}({tbstructcol.max_length})"; break;
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}
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}
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var dbType = tbcol.Attribute.DbType.Replace("NTEXT", "CLOB").Replace("TEXT", "CLOB");
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if (dbType.StartsWith(sqlTypeSize, StringComparison.CurrentCultureIgnoreCase) == false)
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sbalter.Append("ALTER TABLE ").Append(_commonUtils.QuoteSqlName($"{tbname[0]}.{tbname[1]}")).Append(" ALTER COLUMN ").Append(_commonUtils.QuoteSqlName(tbstructcol.column)).Append(" ").Append(tbcol.Attribute.DbType.Split(' ').First().Replace("NTEXT", "CLOB").Replace("TEXT", "CLOB")).Append(";\r\n");//为了适应FreeSQL的长文本规则采用Replace
|
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if (tbcol.Attribute.IsNullable != tbstructcol.is_nullable)
|
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{
|
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if (tbcol.Attribute.IsNullable != true || tbcol.Attribute.IsNullable == true && tbcol.Attribute.IsPrimary == false)
|
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{
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if (tbcol.Attribute.IsNullable == false)
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sbalter.Append("UPDATE ").Append(_commonUtils.QuoteSqlName($"{tbname[0]}.{tbname[1]}")).Append(" SET ").Append(_commonUtils.QuoteSqlName(tbstructcol.column)).Append(" = ").Append(tbcol.DbDefaultValue).Append(" WHERE ").Append(_commonUtils.QuoteSqlName(tbstructcol.column)).Append(" IS NULL;\r\n");
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sbalter.Append("ALTER TABLE ").Append(_commonUtils.QuoteSqlName($"{tbname[0]}.{tbname[1]}")).Append(" ALTER COLUMN ").Append(_commonUtils.QuoteSqlName(tbstructcol.column)).Append(" ").Append(tbcol.Attribute.IsNullable == true ? "DROP" : "SET").Append(" NOT NULL;\r\n");
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}
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}
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if (tbcol.Attribute.IsIdentity != tbstructcol.is_identity)
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{
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//sbalter.Append(" identity(1,1)");
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seqcols.Add(NativeTuple.Create(tbcol, tbname, tbcol.Attribute.IsIdentity == true));
|
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}
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if (string.Compare(tbstructcol.column, tbcol.Attribute.OldName, true) == 0)
|
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//修改列名
|
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sbalter.Append("ALTER TABLE ").Append(_commonUtils.QuoteSqlName($"{tbname[0]}.{tbname[1]}")).Append(" RENAME COLUMN ").Append(_commonUtils.QuoteSqlName(tbstructcol.column)).Append(" TO ").Append(_commonUtils.QuoteSqlName(tbcol.Attribute.Name)).Append(";\r\n");
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if (isCommentChanged)
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sbalter.Append("COMMENT ON COLUMN ").Append(_commonUtils.QuoteSqlName($"{tbname[0]}.{tbname[1]}.{tbcol.Attribute.Name}")).Append(" IS ").Append(_commonUtils.FormatSql("{0}", tbcol.Comment)).Append(";\r\n");
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continue;
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}
|
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//添加列
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sbalter.Append("ALTER TABLE ").Append(_commonUtils.QuoteSqlName($"{tbname[0]}.{tbname[1]}")).Append(" ADD COLUMN ").Append(_commonUtils.QuoteSqlName(tbcol.Attribute.Name)).Append(" ").Append(tbcol.Attribute.DbType.Split(' ').First()).Append(";\r\n");
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sbalter.Append("UPDATE ").Append(_commonUtils.QuoteSqlName($"{tbname[0]}.{tbname[1]}")).Append(" SET ").Append(_commonUtils.QuoteSqlName(tbcol.Attribute.Name)).Append(" = ").Append(tbcol.DbDefaultValue).Append(";\r\n");
|
||||
if (tbcol.Attribute.IsNullable == false) sbalter.Append("ALTER TABLE ").Append(_commonUtils.QuoteSqlName($"{tbname[0]}.{tbname[1]}")).Append(" ALTER COLUMN ").Append(_commonUtils.QuoteSqlName(tbcol.Attribute.Name)).Append(" SET NOT NULL;\r\n");
|
||||
if (tbcol.Attribute.IsIdentity == true)
|
||||
{
|
||||
seqcols.Add(NativeTuple.Create(tbcol, tbname, tbcol.Attribute.IsIdentity == true));
|
||||
}
|
||||
if (string.IsNullOrEmpty(tbcol.Comment) == false) sbalter.Append("COMMENT ON COLUMN ").Append(_commonUtils.QuoteSqlName($"{tbname[0]}.{tbname[1]}.{tbcol.Attribute.Name}")).Append(" IS ").Append(_commonUtils.FormatSql("{0}", tbcol.Comment)).Append(";\r\n");
|
||||
}
|
||||
|
||||
var dsuksql = _commonUtils.FormatSql($@"
|
||||
select
|
||||
keys,
|
||||
a.index_name,
|
||||
case when a.IS_UNIQUE then 1 else 0 end as IsUnique,
|
||||
t.table_name,
|
||||
ns.SCHEMA_NAME,
|
||||
a.IS_SYS
|
||||
from all_INDEXES a
|
||||
left join all_tables t on a.TABLE_ID=t.TABLE_ID
|
||||
left join all_schemas ns on t.SCHEMA_ID=ns.SCHEMA_ID
|
||||
WHERE a.IS_Primary = false and t.table_name={{1}} and schema_name={{0}}",
|
||||
tboldname ?? tbname);
|
||||
|
||||
var dsuk = _orm.Ado.ExecuteArray(CommandType.Text, dsuksql).Select(a => new[] { string.Concat(a[0]), string.Concat(a[1]), string.Concat(a[2]), string.Concat(a[3]), string.Concat(a[4]) }).ToList();
|
||||
foreach (var uk in tb.Indexes)
|
||||
{
|
||||
if (string.IsNullOrEmpty(uk.Name) || uk.Columns.Any() == false) continue;
|
||||
//获取C#中定义的索引名称
|
||||
var ukname = ReplaceIndexName(uk.Name, tbname[1]);
|
||||
//数据库和C#定义名称一致的
|
||||
var dsukfind1 = dsuk.FirstOrDefault(a => string.Compare(a[1], ukname, true) == 0);
|
||||
|
||||
if (dsukfind1==null || //没有找到一致的索引，表示新定义的
|
||||
dsukfind1[0].Split(',').Length!=uk.Columns.Length ||
|
||||
uk.Columns.Any(x=>dsukfind1[0].ToLower().IndexOf( x.Column.Attribute.Name.ToLower())==-1) ||
|
||||
uk.IsUnique != (dsukfind1[2]== "1")
|
||||
)
|
||||
{
|
||||
if (dsukfind1 != null) sbalter.Append("DROP INDEX ").Append($"\"{dsukfind1[4]}\".\"{dsukfind1[3]}\".\"{ukname}\"").Append(";\r\n");
|
||||
sbalter.Append("CREATE ");
|
||||
if (uk.IsUnique) sbalter.Append("UNIQUE ");
|
||||
sbalter.Append("INDEX ").Append(_commonUtils.QuoteSqlName(ukname)).Append(" ON ").Append(_commonUtils.QuoteSqlName($"{tbname[0]}.{tbname[1]}")).Append("(");
|
||||
foreach (var tbcol in uk.Columns)
|
||||
{
|
||||
sbalter.Append(_commonUtils.QuoteSqlName(tbcol.Column.Attribute.Name));
|
||||
//if (tbcol.IsDesc) sbalter.Append(" DESC");
|
||||
sbalter.Append(", ");
|
||||
}
|
||||
sbalter.Remove(sbalter.Length - 2, 2).Append(");\r\n");
|
||||
}
|
||||
}
|
||||
}
|
||||
if (istmpatler == false)
|
||||
{
|
||||
//描述
|
||||
var dbcomment = string.Concat(_orm.Ado.ExecuteScalar(CommandType.Text, _commonUtils.FormatSql($@"
|
||||
select COMMENTS,TABLE_NAME,SCHEMA_NAME from all_tables as a
|
||||
left join all_schemas as b on a.SCHEMA_ID=b.SCHEMA_ID
|
||||
WHERE a.Table_Name={{1}} and b.SCHEMA_NAME={{0}}
|
||||
",tbname)));
|
||||
if ((dbcomment??"") != (tb.Comment ?? ""))
|
||||
sbalter.Append("COMMENT ON TABLE ").Append(_commonUtils.QuoteSqlName($"{tbname[0]}.{tbname[1]}")).Append(" IS ").Append(_commonUtils.FormatSql("{0}", tb.Comment)).Append(";\r\n");
|
||||
|
||||
sb.Append(sbalter);
|
||||
continue;
|
||||
}
|
||||
|
||||
//约束primary key
|
||||
|
||||
var oldpk = _orm.Ado.ExecuteScalar(CommandType.Text, _commonUtils.FormatSql(@"
|
||||
select cons_name from all_constraints as a
|
||||
left join all_tables as b on a.Table_ID=b.Table_ID
|
||||
left Join all_SCHEMAS AS c on b.SCHEMA_ID=c.SCHEMA_ID
|
||||
where b.TABLE_NAME={0} and c.SCHEMA_NAME={1} and a.cons_TYPE='P'
|
||||
", tbname))?.ToString();
|
||||
if (string.IsNullOrEmpty(oldpk) == false)
|
||||
sb.Append("ALTER TABLE ").Append(_commonUtils.QuoteSqlName($"{tbname[0]}.{tbname[1]}")).Append(" DROP CONSTRAINT ").Append(oldpk).Append(";\r\n");
|
||||
|
||||
//创建临时表，数据导进临时表，然后删除原表，将临时表改名为原表名
|
||||
var tablename = tboldname == null ? _commonUtils.QuoteSqlName($"{tbname[0]}.{tbname[1]}") : _commonUtils.QuoteSqlName($"{tboldname[0]}.{tboldname[1]}");
|
||||
|
||||
//创建临时表
|
||||
var tmptablename = _commonUtils.QuoteSqlName($"{tbname[0]}.FreeSqlTmp_{tbname[1]}");
|
||||
sb.Append("CREATE TABLE IF NOT EXISTS ").Append(tmptablename).Append(" ( ");
|
||||
foreach (var tbcol in tb.ColumnsByPosition)
|
||||
{
|
||||
sb.Append(" \r\n ").Append(_commonUtils.QuoteSqlName(tbcol.Attribute.Name)).Append(" ").Append(tbcol.Attribute.DbType);
|
||||
if (tbcol.Attribute.IsIdentity == true)
|
||||
{
|
||||
//sb.Append(" identity(1,1)");
|
||||
seqcols.Add(NativeTuple.Create(tbcol, tbname, true));
|
||||
}
|
||||
sb.Append(",");
|
||||
}
|
||||
|
||||
|
||||
|
||||
if (tb.Primarys.Any())
|
||||
{
|
||||
var pkname = $"{tbname[0]}_{tbname[1]}_pkey";
|
||||
sb.Append(" \r\n CONSTRAINT ").Append(_commonUtils.QuoteSqlName(pkname)).Append(" PRIMARY KEY (");
|
||||
foreach (var tbcol in tb.Primarys) sb.Append(_commonUtils.QuoteSqlName(tbcol.Attribute.Name)).Append(", ");
|
||||
sb.Remove(sb.Length - 2, 2).Append("),");
|
||||
}
|
||||
sb.Remove(sb.Length - 1, 1);
|
||||
sb.Append("\r\n);\r\n");
|
||||
//备注
|
||||
foreach (var tbcol in tb.ColumnsByPosition)
|
||||
{
|
||||
if (string.IsNullOrEmpty(tbcol.Comment) == false)
|
||||
sb.Append("COMMENT ON COLUMN ").Append(_commonUtils.QuoteSqlName($"{tbname[0]}.FreeSqlTmp_{tbname[1]}.{tbcol.Attribute.Name}")).Append(" IS ").Append(_commonUtils.FormatSql("{0}", tbcol.Comment)).Append(";\r\n");
|
||||
}
|
||||
if (string.IsNullOrEmpty(tb.Comment) == false)
|
||||
sb.Append("COMMENT ON TABLE ").Append(_commonUtils.QuoteSqlName($"{tbname[0]}.FreeSqlTmp_{tbname[1]}")).Append(" IS ").Append(_commonUtils.FormatSql("{0}", tb.Comment)).Append(";\r\n");
|
||||
|
||||
sb.Append("INSERT INTO ").Append(tmptablename).Append(" (");
|
||||
foreach (var tbcol in tb.ColumnsByPosition)
|
||||
sb.Append(_commonUtils.QuoteSqlName(tbcol.Attribute.Name)).Append(", ");
|
||||
sb.Remove(sb.Length - 2, 2).Append(")\r\nSELECT ");
|
||||
foreach (var tbcol in tb.ColumnsByPosition)
|
||||
{
|
||||
var insertvalue = "NULL";
|
||||
if (tbstruct.TryGetValue(tbcol.Attribute.Name, out var tbstructcol) ||
|
||||
string.IsNullOrEmpty(tbcol.Attribute.OldName) == false && tbstruct.TryGetValue(tbcol.Attribute.OldName, out tbstructcol))
|
||||
{
|
||||
insertvalue = _commonUtils.QuoteSqlName(tbstructcol.column);
|
||||
if (tbcol.Attribute.DbType.StartsWith(tbstructcol.sqlType, StringComparison.CurrentCultureIgnoreCase) == false)
|
||||
insertvalue = $"cast({insertvalue} as {tbcol.Attribute.DbType.Split(' ').First()})";
|
||||
if (tbcol.Attribute.IsNullable != tbstructcol.is_nullable)
|
||||
insertvalue = $"coalesce({insertvalue},{tbcol.DbDefaultValue})";
|
||||
}
|
||||
else if (tbcol.Attribute.IsNullable == false)
|
||||
insertvalue = tbcol.DbDefaultValue;
|
||||
sb.Append(insertvalue).Append(", ");
|
||||
}
|
||||
sb.Remove(sb.Length - 2, 2).Append(" FROM ").Append(tablename).Append(";\r\n");
|
||||
sb.Append("DROP TABLE ").Append(tablename).Append(";\r\n");
|
||||
sb.Append("ALTER TABLE ").Append(tmptablename).Append(" RENAME TO ").Append(_commonUtils.QuoteSqlName(tbname[1])).Append(";\r\n");
|
||||
//创建表的索引
|
||||
foreach (var uk in tb.Indexes)
|
||||
{
|
||||
sb.Append("CREATE ");
|
||||
if (uk.IsUnique) sb.Append("UNIQUE ");
|
||||
sb.Append("INDEX ").Append(_commonUtils.QuoteSqlName(ReplaceIndexName(uk.Name, tbname[1]))).Append(" ON ").Append(tablename).Append("(");
|
||||
foreach (var tbcol in uk.Columns)
|
||||
{
|
||||
sb.Append(_commonUtils.QuoteSqlName(tbcol.Column.Attribute.Name));
|
||||
if (tbcol.IsDesc) sb.Append(" DESC");
|
||||
sb.Append(", ");
|
||||
}
|
||||
sb.Remove(sb.Length - 2, 2).Append(");\r\n");
|
||||
}
|
||||
|
||||
|
||||
}
|
||||
|
||||
|
||||
//foreach (var seqcol in seqcols)
|
||||
//{
|
||||
// var tbname = seqcol.Item2;
|
||||
// var seqname = Utils.GetCsName($"{tbname[0]}.{tbname[1]}_{seqcol.Item1.Attribute.Name}_sequence_name").ToLower();
|
||||
// var tbname2 = _commonUtils.QuoteSqlName($"{tbname[0]}.{tbname[1]}");
|
||||
// var colname2 = _commonUtils.QuoteSqlName(seqcol.Item1.Attribute.Name);
|
||||
// sb.Append("ALTER TABLE ").Append(tbname2).Append(" ALTER COLUMN ").Append(colname2).Append(" SET DEFAULT null;\r\n");
|
||||
// sb.Append("DROP SEQUENCE IF EXISTS ").Append(seqname).Append(";\r\n");
|
||||
// if (seqcol.Item3)
|
||||
// {
|
||||
// sb.Append("CREATE SEQUENCE ").Append(seqname).Append(";\r\n");
|
||||
// sb.Append("ALTER TABLE ").Append(tbname2).Append(" ALTER COLUMN ").Append(colname2).Append(" SET DEFAULT nextval('").Append(seqname).Append("'::regclass);\r\n");
|
||||
// sb.Append(" SELECT case when max(").Append(colname2).Append(") is null then 0 else setval('").Append(seqname).Append("', max(").Append(colname2).Append(")) end FROM ").Append(tbname2).Append(";\r\n");
|
||||
// }
|
||||
//}
|
||||
Console.Write(sb.ToString());
|
||||
//throw new Exception(sb.ToString());
|
||||
return sb.Length == 0 ? null : sb.ToString();
|
||||
}
|
||||
}
|
||||
}
|
||||
Reference in New Issue
Block a user