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760 lines
34 KiB
C#
760 lines
34 KiB
C#
using FreeSql.Extensions.EntityUtil;
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using FreeSql.Internal.Model;
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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.Data.Common;
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using System.Linq;
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using System.Linq.Expressions;
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using System.Reflection;
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using System.Text;
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using System.Threading.Tasks;
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namespace FreeSql.Internal.CommonProvider
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{
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public abstract partial class UpdateProvider<T1> : IUpdate<T1> where T1 : class
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{
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public IFreeSql _orm;
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public CommonUtils _commonUtils;
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public CommonExpression _commonExpression;
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public List<T1> _source = new List<T1>();
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public Dictionary<string, bool> _ignore = new Dictionary<string, bool>(StringComparer.CurrentCultureIgnoreCase);
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public Dictionary<string, bool> _auditValueChangedDict = new Dictionary<string, bool>(StringComparer.CurrentCultureIgnoreCase);
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public TableInfo _table;
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public Func<string, string> _tableRule;
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public StringBuilder _where = new StringBuilder();
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public List<GlobalFilter.Item> _whereGlobalFilter;
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public StringBuilder _set = new StringBuilder();
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public StringBuilder _setIncr = new StringBuilder();
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public List<DbParameter> _params = new List<DbParameter>();
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public List<DbParameter> _paramsSource = new List<DbParameter>();
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public bool _noneParameter;
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public int _batchRowsLimit, _batchParameterLimit;
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public bool _batchAutoTransaction = true;
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public DbTransaction _transaction;
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public DbConnection _connection;
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public UpdateProvider(IFreeSql orm, CommonUtils commonUtils, CommonExpression commonExpression, object dywhere)
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{
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_orm = orm;
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_commonUtils = commonUtils;
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_commonExpression = commonExpression;
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_table = _commonUtils.GetTableByEntity(typeof(T1));
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_noneParameter = _orm.CodeFirst.IsNoneCommandParameter;
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this.Where(_commonUtils.WhereObject(_table, "", dywhere));
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if (_orm.CodeFirst.IsAutoSyncStructure && typeof(T1) != typeof(object)) _orm.CodeFirst.SyncStructure<T1>();
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IgnoreCanUpdate();
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_whereGlobalFilter = _orm.GlobalFilter.GetFilters();
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}
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/// <summary>
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/// AsType, Ctor, ClearData 三处地方需要重新加载
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/// </summary>
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protected void IgnoreCanUpdate()
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{
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if (_table == null || _table.Type == typeof(object)) return;
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foreach (var col in _table.Columns.Values)
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if (col.Attribute.CanUpdate == false && _ignore.ContainsKey(col.Attribute.Name) == false)
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_ignore.Add(col.Attribute.Name, true);
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}
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protected void ClearData()
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{
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_batchRowsLimit = _batchParameterLimit = 0;
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_batchAutoTransaction = true;
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_source.Clear();
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_ignore.Clear();
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_auditValueChangedDict.Clear();
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_where.Clear();
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_set.Clear();
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_setIncr.Clear();
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_params.Clear();
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_paramsSource.Clear();
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IgnoreCanUpdate();
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_whereGlobalFilter = _orm.GlobalFilter.GetFilters();
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}
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public IUpdate<T1> WithTransaction(DbTransaction transaction)
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{
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_transaction = transaction;
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_connection = _transaction?.Connection;
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return this;
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}
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public IUpdate<T1> WithConnection(DbConnection connection)
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{
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if (_transaction?.Connection != connection) _transaction = null;
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_connection = connection;
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return this;
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}
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public IUpdate<T1> NoneParameter(bool isNotCommandParameter = true)
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{
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_noneParameter = isNotCommandParameter;
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return this;
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}
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public virtual IUpdate<T1> BatchOptions(int rowsLimit, int parameterLimit, bool autoTransaction = true)
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{
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_batchRowsLimit = rowsLimit;
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_batchParameterLimit = parameterLimit;
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_batchAutoTransaction = autoTransaction;
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return this;
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}
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protected void ValidateVersionAndThrow(int affrows)
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{
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if (_table.VersionColumn != null && _source.Count > 0)
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{
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if (affrows != _source.Count)
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throw new Exception($"记录可能不存在，或者【行级乐观锁】版本过旧，更新数量{_source.Count}，影响的行数{affrows}。");
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foreach (var d in _source)
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_orm.SetEntityIncrByWithPropertyName(_table.Type, d, _table.VersionColumn.CsName, 1);
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}
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}
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#region 参数化数据限制，或values数量限制
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internal List<T1>[] SplitSource(int valuesLimit, int parameterLimit)
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{
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valuesLimit = valuesLimit - 1;
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parameterLimit = parameterLimit - 1;
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if (valuesLimit <= 0) valuesLimit = 1;
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if (parameterLimit <= 0) parameterLimit = 999;
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if (_source == null || _source.Any() == false) return new List<T1>[0];
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if (_source.Count == 1) return new[] { _source };
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var takeMax = valuesLimit;
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if (_noneParameter == false)
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{
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var colSum = _table.Columns.Count - _ignore.Count;
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if (colSum <= 0) colSum = 1;
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takeMax = parameterLimit / colSum;
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if (takeMax > valuesLimit) takeMax = valuesLimit;
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}
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if (_source.Count <= takeMax) return new[] { _source };
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var execCount = (int)Math.Ceiling(1.0 * _source.Count / takeMax);
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var ret = new List<T1>[execCount];
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for (var a = 0; a < execCount; a++)
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ret[a] = _source.GetRange(a * takeMax, Math.Min(takeMax, _source.Count - a * takeMax));
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return ret;
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}
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protected int SplitExecuteAffrows(int valuesLimit, int parameterLimit)
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{
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var ss = SplitSource(valuesLimit, parameterLimit);
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var ret = 0;
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if (ss.Length <= 1)
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{
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ret = this.RawExecuteAffrows();
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ClearData();
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return ret;
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}
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if (_transaction == null)
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this.WithTransaction(_orm.Ado.TransactionCurrentThread);
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var before = new Aop.TraceBeforeEventArgs("SplitExecuteAffrows", null);
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_orm.Aop.TraceBeforeHandler?.Invoke(this, before);
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Exception exception = null;
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try
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{
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if (_transaction != null || _batchAutoTransaction == false)
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{
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for (var a = 0; a < ss.Length; a++)
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{
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_source = ss[a];
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ret += this.RawExecuteAffrows();
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}
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}
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else
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{
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using (var conn = _orm.Ado.MasterPool.Get())
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{
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_transaction = conn.Value.BeginTransaction();
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var transBefore = new Aop.TraceBeforeEventArgs("BeginTransaction", null);
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_orm.Aop.TraceBeforeHandler?.Invoke(this, transBefore);
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try
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{
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for (var a = 0; a < ss.Length; a++)
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{
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_source = ss[a];
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ret += this.RawExecuteAffrows();
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}
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_transaction.Commit();
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_orm.Aop.TraceAfterHandler?.Invoke(this, new Aop.TraceAfterEventArgs(transBefore, "提交", null));
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}
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catch (Exception ex)
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{
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_transaction.Rollback();
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_orm.Aop.TraceAfterHandler?.Invoke(this, new Aop.TraceAfterEventArgs(transBefore, "回滚", ex));
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throw ex;
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}
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_transaction = null;
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}
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}
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}
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catch (Exception ex)
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{
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exception = ex;
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throw ex;
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}
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finally
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{
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var after = new Aop.TraceAfterEventArgs(before, null, exception);
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_orm.Aop.TraceAfterHandler?.Invoke(this, after);
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}
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ClearData();
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return ret;
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}
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protected List<T1> SplitExecuteUpdated(int valuesLimit, int parameterLimit)
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{
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var ss = SplitSource(valuesLimit, parameterLimit);
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var ret = new List<T1>();
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if (ss.Length <= 1)
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{
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ret = this.RawExecuteUpdated();
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ClearData();
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return ret;
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}
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if (_transaction == null)
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this.WithTransaction(_orm.Ado.TransactionCurrentThread);
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var before = new Aop.TraceBeforeEventArgs("SplitExecuteUpdated", null);
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_orm.Aop.TraceBeforeHandler?.Invoke(this, before);
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Exception exception = null;
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try
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{
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if (_transaction != null || _batchAutoTransaction == false)
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{
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for (var a = 0; a < ss.Length; a++)
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{
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_source = ss[a];
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ret.AddRange(this.RawExecuteUpdated());
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}
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}
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else
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{
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using (var conn = _orm.Ado.MasterPool.Get())
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{
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_transaction = conn.Value.BeginTransaction();
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var transBefore = new Aop.TraceBeforeEventArgs("BeginTransaction", null);
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_orm.Aop.TraceBeforeHandler?.Invoke(this, transBefore);
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try
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{
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for (var a = 0; a < ss.Length; a++)
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{
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_source = ss[a];
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ret.AddRange(this.RawExecuteUpdated());
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}
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_transaction.Commit();
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_orm.Aop.TraceAfterHandler?.Invoke(this, new Aop.TraceAfterEventArgs(transBefore, "提交", null));
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}
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catch (Exception ex)
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{
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_transaction.Rollback();
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_orm.Aop.TraceAfterHandler?.Invoke(this, new Aop.TraceAfterEventArgs(transBefore, "回滚", ex));
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throw ex;
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}
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_transaction = null;
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}
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}
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}
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catch (Exception ex)
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{
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exception = ex;
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throw ex;
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}
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finally
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{
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var after = new Aop.TraceAfterEventArgs(before, null, exception);
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_orm.Aop.TraceAfterHandler?.Invoke(this, after);
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}
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ClearData();
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return ret;
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}
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#endregion
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protected int RawExecuteAffrows()
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{
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var sql = this.ToSql();
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if (string.IsNullOrEmpty(sql)) return 0;
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var dbParms = _params.Concat(_paramsSource).ToArray();
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var before = new Aop.CurdBeforeEventArgs(_table.Type, _table, Aop.CurdType.Update, sql, dbParms);
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_orm.Aop.CurdBeforeHandler?.Invoke(this, before);
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var affrows = 0;
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Exception exception = null;
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try
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{
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affrows = _orm.Ado.ExecuteNonQuery(_connection, _transaction, CommandType.Text, sql, dbParms);
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ValidateVersionAndThrow(affrows);
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}
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catch (Exception ex)
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{
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exception = ex;
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throw ex;
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}
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finally
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{
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var after = new Aop.CurdAfterEventArgs(before, exception, affrows);
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_orm.Aop.CurdAfterHandler?.Invoke(this, after);
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}
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return affrows;
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}
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protected abstract List<T1> RawExecuteUpdated();
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public abstract int ExecuteAffrows();
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public abstract List<T1> ExecuteUpdated();
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public IUpdate<T1> IgnoreColumns(Expression<Func<T1, object>> columns) => IgnoreColumns(_commonExpression.ExpressionSelectColumns_MemberAccess_New_NewArrayInit(null, columns?.Body, false, null));
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public IUpdate<T1> UpdateColumns(Expression<Func<T1, object>> columns) => UpdateColumns(_commonExpression.ExpressionSelectColumns_MemberAccess_New_NewArrayInit(null, columns?.Body, false, null));
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public IUpdate<T1> IgnoreColumns(string[] columns)
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{
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var cols = columns.Distinct().ToDictionary(a => a);
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_ignore.Clear();
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foreach (var col in _table.Columns.Values)
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if (cols.ContainsKey(col.Attribute.Name) == true || cols.ContainsKey(col.CsName) == true)
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_ignore.Add(col.Attribute.Name, true);
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return this;
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}
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public IUpdate<T1> UpdateColumns(string[] columns)
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{
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var cols = columns.Distinct().ToDictionary(a => a);
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_ignore.Clear();
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foreach (var col in _table.Columns.Values)
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if (cols.ContainsKey(col.Attribute.Name) == false && cols.ContainsKey(col.CsName) == false && _auditValueChangedDict.ContainsKey(col.Attribute.Name) == false)
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_ignore.Add(col.Attribute.Name, true);
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return this;
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}
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public static void AuditDataValue(object sender, IEnumerable<T1> data, IFreeSql orm, TableInfo table, Dictionary<string, bool> changedDict)
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{
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if (data?.Any() != true) return;
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if (orm.Aop.AuditValueHandler == null) return;
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foreach (var d in data)
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{
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if (d == null) continue;
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foreach (var col in table.Columns.Values)
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{
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object val = col.GetMapValue(d);
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var auditArgs = new Aop.AuditValueEventArgs(Aop.AuditValueType.Update, col, table.Properties[col.CsName], val);
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orm.Aop.AuditValueHandler(sender, auditArgs);
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if (auditArgs.IsChanged)
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{
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col.SetMapValue(d, val = auditArgs.Value);
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if (changedDict != null && changedDict.ContainsKey(col.Attribute.Name) == false)
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changedDict.Add(col.Attribute.Name, true);
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}
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}
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}
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}
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public static void AuditDataValue(object sender, T1 data, IFreeSql orm, TableInfo table, Dictionary<string, bool> changedDict)
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{
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if (orm.Aop.AuditValueHandler == null) return;
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if (data == null) return;
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if (typeof(T1) == typeof(object) && new[] { table.Type, table.TypeLazy }.Contains(data.GetType()) == false)
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throw new Exception($"操作的数据类型({data.GetType().DisplayCsharp()}) 与 AsType({table.Type.DisplayCsharp()}) 不一致，请检查。");
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foreach (var col in table.Columns.Values)
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{
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object val = col.GetMapValue(data);
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var auditArgs = new Aop.AuditValueEventArgs(Aop.AuditValueType.Update, col, table.Properties[col.CsName], val);
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orm.Aop.AuditValueHandler(sender, auditArgs);
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if (auditArgs.IsChanged)
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{
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col.SetMapValue(data, val = auditArgs.Value);
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if (changedDict != null && changedDict.ContainsKey(col.Attribute.Name) == false)
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changedDict.Add(col.Attribute.Name, true);
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}
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}
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}
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public IUpdate<T1> SetSource(T1 source) => this.SetSource(new[] { source });
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public IUpdate<T1> SetSource(IEnumerable<T1> source)
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{
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if (source == null || source.Any() == false) return this;
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AuditDataValue(this, source, _orm, _table, _auditValueChangedDict);
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_source.AddRange(source.Where(a => a != null));
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return this;
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}
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public IUpdate<T1> SetSourceIgnore(T1 source, Func<object, bool> ignore)
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{
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if (ignore == null) throw new ArgumentNullException(nameof(ignore));
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var columns = _table.Columns.Values
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.Where(col => ignore(_orm.GetEntityValueWithPropertyName(_table.Type, source, col.CsName)))
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.Select(col => col.Attribute.Name).ToArray();
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IgnoreColumns(columns);
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IgnoreCanUpdate();
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return SetSource(source);
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}
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protected void SetPriv(ColumnInfo col, object value)
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{
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object paramVal = null;
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if (col.Attribute.MapType == col.CsType) paramVal = value;
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else paramVal = Utils.GetDataReaderValue(col.Attribute.MapType, value);
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_set.Append(", ").Append(_commonUtils.QuoteSqlName(col.Attribute.Name)).Append(" = ");
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if (_noneParameter)
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{
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_set.Append(_commonUtils.GetNoneParamaterSqlValue(_params, col.Attribute.MapType, paramVal));
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}
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else
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{
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_set.Append(_commonUtils.QuoteWriteParamter(col.Attribute.MapType, $"{_commonUtils.QuoteParamterName("p_")}{_params.Count}"));
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_commonUtils.AppendParamter(_params, null, col, col.Attribute.MapType, paramVal);
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}
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}
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public IUpdate<T1> Set<TMember>(Expression<Func<T1, TMember>> column, TMember value)
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{
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var cols = new List<SelectColumnInfo>();
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_commonExpression.ExpressionSelectColumn_MemberAccess(null, cols, SelectTableInfoType.From, column?.Body, true, null);
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if (cols.Count != 1) return this;
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SetPriv(cols.First().Column, value);
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return this;
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}
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public IUpdate<T1> SetIf<TMember>(bool condition, Expression<Func<T1, TMember>> column, TMember value) => condition ? Set(column, value) : this;
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public IUpdate<T1> Set<TMember>(Expression<Func<T1, TMember>> exp)
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{
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var body = exp?.Body;
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var nodeType = body?.NodeType;
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switch (nodeType)
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{
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case ExpressionType.Equal:
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var equalBinaryExp = body as BinaryExpression;
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var eqval = _commonExpression.ExpressionWhereLambdaNoneForeignObject(null, _table, null, body, null, null);
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if (eqval.EndsWith(" IS NULL")) eqval = $"{eqval.Remove(eqval.Length - 10)} = NULL"; //#311
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_set.Append(", ").Append(eqval);
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return this;
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case ExpressionType.MemberInit:
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var initExp = body as MemberInitExpression;
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if (initExp.Bindings?.Count > 0)
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{
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for (var a = 0; a < initExp.Bindings.Count; a++)
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{
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var initAssignExp = (initExp.Bindings[a] as MemberAssignment);
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if (initAssignExp == null) continue;
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var memberName = initExp.Bindings[a].Member.Name;
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if (_table.ColumnsByCsIgnore.ContainsKey(memberName)) continue;
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if (_table.ColumnsByCs.TryGetValue(memberName, out var col) == false) throw new Exception($"找不到属性：{memberName}");
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var memberValue = _commonExpression.ExpressionLambdaToSql(initAssignExp.Expression, new CommonExpression.ExpTSC { isQuoteName = true, mapType = col.Attribute.MapType });
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_setIncr.Append(", ").Append(_commonUtils.QuoteSqlName(col.Attribute.Name)).Append(" = ").Append(memberValue);
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}
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}
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return this;
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case ExpressionType.New:
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var newExp = body as NewExpression;
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if (newExp.Members?.Count > 0)
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{
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for (var a = 0; a < newExp.Members.Count; a++)
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{
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var memberName = newExp.Members[a].Name;
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if (_table.ColumnsByCsIgnore.ContainsKey(memberName)) continue;
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if (_table.ColumnsByCs.TryGetValue(memberName, out var col) == false) throw new Exception($"找不到属性：{memberName}");
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var memberValue = _commonExpression.ExpressionLambdaToSql(newExp.Arguments[a], new CommonExpression.ExpTSC { isQuoteName = true, mapType = col.Attribute.MapType });
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_setIncr.Append(", ").Append(_commonUtils.QuoteSqlName(col.Attribute.Name)).Append(" = ").Append(memberValue);
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}
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}
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return this;
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}
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if (body is BinaryExpression == false &&
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nodeType != ExpressionType.Call) return this;
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var cols = new List<SelectColumnInfo>();
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var expt = _commonExpression.ExpressionWhereLambdaNoneForeignObject(null, _table, cols, exp, null, null);
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if (cols.Any() == false) return this;
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foreach (var col in cols)
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{
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if (col.Column.Attribute.IsNullable == true && col.Column.Attribute.MapType.IsNullableType())
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{
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var replval = _orm.CodeFirst.GetDbInfo(col.Column.Attribute.MapType.GetGenericArguments().FirstOrDefault())?.defaultValue;
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if (replval == null) continue;
|
||
var replname = _commonUtils.QuoteSqlName(col.Column.Attribute.Name);
|
||
expt = expt.Replace(replname, _commonUtils.IsNull(replname, _commonUtils.FormatSql("{0}", replval)));
|
||
}
|
||
}
|
||
_setIncr.Append(", ").Append(_commonUtils.QuoteSqlName(cols.First().Column.Attribute.Name)).Append(" = ").Append(expt);
|
||
return this;
|
||
}
|
||
public IUpdate<T1> SetIf<TMember>(bool condition, Expression<Func<T1, TMember>> exp) => condition ? Set(exp) : this;
|
||
public IUpdate<T1> SetRaw(string sql, object parms = null)
|
||
{
|
||
if (string.IsNullOrEmpty(sql)) return this;
|
||
_set.Append(", ").Append(sql);
|
||
if (parms != null) _params.AddRange(_commonUtils.GetDbParamtersByObject(sql, parms));
|
||
return this;
|
||
}
|
||
|
||
public IUpdate<T1> SetDto(object dto)
|
||
{
|
||
if (dto == null) return this;
|
||
if (dto is Dictionary<string, object>)
|
||
{
|
||
var dic = dto as Dictionary<string, object>;
|
||
foreach (var kv in dic)
|
||
{
|
||
if (_table.ColumnsByCs.TryGetValue(kv.Key, out var trycol) == false) continue;
|
||
if (_ignore.ContainsKey(trycol.Attribute.Name)) continue;
|
||
SetPriv(trycol, kv.Value);
|
||
}
|
||
}
|
||
var dtoProps = dto.GetType().GetProperties();
|
||
foreach (var dtoProp in dtoProps)
|
||
{
|
||
if (_table.ColumnsByCs.TryGetValue(dtoProp.Name, out var trycol) == false) continue;
|
||
if (_ignore.ContainsKey(trycol.Attribute.Name)) continue;
|
||
SetPriv(trycol, dtoProp.GetValue(dto, null));
|
||
}
|
||
return this;
|
||
}
|
||
|
||
public IUpdate<T1> Where(Expression<Func<T1, bool>> expression) => this.Where(_commonExpression.ExpressionWhereLambdaNoneForeignObject(null, _table, null, expression?.Body, null, _params));
|
||
public IUpdate<T1> Where(string sql, object parms = null)
|
||
{
|
||
if (string.IsNullOrEmpty(sql)) return this;
|
||
_where.Append(" AND (").Append(sql).Append(")");
|
||
if (parms != null) _params.AddRange(_commonUtils.GetDbParamtersByObject(sql, parms));
|
||
return this;
|
||
}
|
||
public IUpdate<T1> Where(T1 item) => this.Where(new[] { item });
|
||
public IUpdate<T1> Where(IEnumerable<T1> items) => this.Where(_commonUtils.WhereItems(_table, "", items));
|
||
public IUpdate<T1> WhereDynamic(object dywhere, bool not = false) => not == false ?
|
||
this.Where(_commonUtils.WhereObject(_table, "", dywhere)) :
|
||
this.Where($"not({_commonUtils.WhereObject(_table, "", dywhere)})");
|
||
|
||
public IUpdate<T1> DisableGlobalFilter(params string[] name)
|
||
{
|
||
if (_whereGlobalFilter.Any() == false) return this;
|
||
if (name?.Any() != true)
|
||
{
|
||
_whereGlobalFilter.Clear();
|
||
return this;
|
||
}
|
||
foreach (var n in name)
|
||
{
|
||
if (n == null) continue;
|
||
var idx = _whereGlobalFilter.FindIndex(a => string.Compare(a.Name, n, true) == 0);
|
||
if (idx == -1) continue;
|
||
_whereGlobalFilter.RemoveAt(idx);
|
||
}
|
||
return this;
|
||
}
|
||
|
||
protected string WhereCaseSource(string CsName, Func<string, string> thenValue)
|
||
{
|
||
if (_source.Any() == false) return null;
|
||
if (_table.ColumnsByCs.ContainsKey(CsName) == false) throw new Exception($"找不到 {CsName} 对应的列");
|
||
if (thenValue == null) throw new ArgumentNullException("thenValue 参数不可为 null");
|
||
|
||
if (_source.Count == 0) return null;
|
||
if (_source.Count == 1)
|
||
{
|
||
|
||
var col = _table.ColumnsByCs[CsName];
|
||
var sb = new StringBuilder();
|
||
|
||
sb.Append(_commonUtils.QuoteSqlName(col.Attribute.Name)).Append(" = ");
|
||
sb.Append(thenValue(_commonUtils.GetNoneParamaterSqlValue(_paramsSource, col.Attribute.MapType, col.GetMapValue(_source.First()))));
|
||
|
||
return sb.ToString();
|
||
|
||
}
|
||
else
|
||
{
|
||
var caseWhen = new StringBuilder();
|
||
caseWhen.Append("CASE ");
|
||
ToSqlCase(caseWhen, _table.Primarys);
|
||
var cw = caseWhen.ToString();
|
||
|
||
var col = _table.ColumnsByCs[CsName];
|
||
var sb = new StringBuilder();
|
||
sb.Append(_commonUtils.QuoteSqlName(col.Attribute.Name)).Append(" = ");
|
||
|
||
var nulls = 0;
|
||
var cwsb = new StringBuilder().Append(cw);
|
||
foreach (var d in _source)
|
||
{
|
||
cwsb.Append(" \r\nWHEN ");
|
||
ToSqlWhen(cwsb, _table.Primarys, d);
|
||
cwsb.Append(" THEN ");
|
||
var val = col.GetMapValue(d);
|
||
cwsb.Append(thenValue(_commonUtils.GetNoneParamaterSqlValue(_paramsSource, col.Attribute.MapType, val)));
|
||
if (val == null || val == DBNull.Value) nulls++;
|
||
}
|
||
cwsb.Append(" END");
|
||
if (nulls == _source.Count) sb.Append("NULL");
|
||
else sb.Append(cwsb.ToString());
|
||
cwsb.Clear();
|
||
|
||
return sb.ToString();
|
||
}
|
||
}
|
||
|
||
protected abstract void ToSqlCase(StringBuilder caseWhen, ColumnInfo[] primarys);
|
||
protected abstract void ToSqlWhen(StringBuilder sb, ColumnInfo[] primarys, object d);
|
||
protected virtual void ToSqlCaseWhenEnd(StringBuilder sb, ColumnInfo col) { }
|
||
|
||
protected string TableRuleInvoke()
|
||
{
|
||
if (_tableRule == null) return _table.DbName;
|
||
var newname = _tableRule(_table.DbName);
|
||
if (newname == _table.DbName) return _table.DbName;
|
||
if (string.IsNullOrEmpty(newname)) return _table.DbName;
|
||
if (_orm.CodeFirst.IsSyncStructureToLower) newname = newname.ToLower();
|
||
if (_orm.CodeFirst.IsSyncStructureToUpper) newname = newname.ToUpper();
|
||
if (_orm.CodeFirst.IsAutoSyncStructure) _orm.CodeFirst.SyncStructure(_table.Type, newname);
|
||
return newname;
|
||
}
|
||
public IUpdate<T1> AsTable(Func<string, string> tableRule)
|
||
{
|
||
_tableRule = tableRule;
|
||
return this;
|
||
}
|
||
public IUpdate<T1> AsType(Type entityType)
|
||
{
|
||
if (entityType == typeof(object)) throw new Exception("IUpdate.AsType 参数不支持指定为 object");
|
||
if (entityType == _table.Type) return this;
|
||
var newtb = _commonUtils.GetTableByEntity(entityType);
|
||
_table = newtb ?? throw new Exception("IUpdate.AsType 参数错误，请传入正确的实体类型");
|
||
if (_orm.CodeFirst.IsAutoSyncStructure) _orm.CodeFirst.SyncStructure(entityType);
|
||
IgnoreCanUpdate();
|
||
return this;
|
||
}
|
||
|
||
public string ToSql()
|
||
{
|
||
if (_where.Length == 0 && _source.Any() == false) return null;
|
||
|
||
var sb = new StringBuilder();
|
||
sb.Append("UPDATE ").Append(_commonUtils.QuoteSqlName(TableRuleInvoke())).Append(" SET ");
|
||
|
||
if (_set.Length > 0)
|
||
{ //指定 set 更新
|
||
sb.Append(_set.ToString().Substring(2));
|
||
|
||
}
|
||
else if (_source.Count == 1)
|
||
{ //保存 Source
|
||
_paramsSource.Clear();
|
||
var colidx = 0;
|
||
foreach (var col in _table.Columns.Values)
|
||
{
|
||
if (col.Attribute.IsIdentity == false && col.Attribute.IsVersion == false && _ignore.ContainsKey(col.Attribute.Name) == false)
|
||
{
|
||
if (colidx > 0) sb.Append(", ");
|
||
sb.Append(_commonUtils.QuoteSqlName(col.Attribute.Name)).Append(" = ");
|
||
|
||
if (col.Attribute.CanUpdate && string.IsNullOrEmpty(col.DbUpdateValue) == false)
|
||
sb.Append(col.DbUpdateValue);
|
||
else
|
||
{
|
||
var val = col.GetMapValue(_source.First());
|
||
if (_noneParameter)
|
||
sb.Append(_commonUtils.GetNoneParamaterSqlValue(_paramsSource, col.Attribute.MapType, val));
|
||
else
|
||
{
|
||
sb.Append(_commonUtils.QuoteWriteParamter(col.Attribute.MapType, _commonUtils.QuoteParamterName($"p_{_paramsSource.Count}")));
|
||
_commonUtils.AppendParamter(_paramsSource, null, col, col.Attribute.MapType, val);
|
||
}
|
||
}
|
||
++colidx;
|
||
}
|
||
}
|
||
if (colidx == 0) return null;
|
||
|
||
}
|
||
else if (_source.Count > 1)
|
||
{ //批量保存 Source
|
||
if (_table.Primarys.Any() == false) return null;
|
||
|
||
var caseWhen = new StringBuilder();
|
||
caseWhen.Append("CASE ");
|
||
ToSqlCase(caseWhen, _table.Primarys);
|
||
var cw = caseWhen.ToString();
|
||
|
||
_paramsSource.Clear();
|
||
var colidx = 0;
|
||
foreach (var col in _table.Columns.Values)
|
||
{
|
||
if (col.Attribute.IsIdentity == false && col.Attribute.IsVersion == false && _ignore.ContainsKey(col.Attribute.Name) == false)
|
||
{
|
||
if (colidx > 0) sb.Append(", ");
|
||
sb.Append(_commonUtils.QuoteSqlName(col.Attribute.Name)).Append(" = ");
|
||
|
||
if (col.Attribute.CanUpdate && string.IsNullOrEmpty(col.DbUpdateValue) == false)
|
||
sb.Append(col.DbUpdateValue);
|
||
else
|
||
{
|
||
var nulls = 0;
|
||
var cwsb = new StringBuilder().Append(cw);
|
||
foreach (var d in _source)
|
||
{
|
||
cwsb.Append(" \r\nWHEN ");
|
||
ToSqlWhen(cwsb, _table.Primarys, d);
|
||
cwsb.Append(" THEN ");
|
||
var val = col.GetMapValue(d);
|
||
if (_noneParameter)
|
||
cwsb.Append(_commonUtils.GetNoneParamaterSqlValue(_paramsSource, col.Attribute.MapType, val));
|
||
else
|
||
{
|
||
cwsb.Append(_commonUtils.QuoteWriteParamter(col.Attribute.MapType, _commonUtils.QuoteParamterName($"p_{_paramsSource.Count}")));
|
||
_commonUtils.AppendParamter(_paramsSource, null, col, col.Attribute.MapType, val);
|
||
}
|
||
if (val == null || val == DBNull.Value) nulls++;
|
||
}
|
||
cwsb.Append(" END");
|
||
if (nulls == _source.Count) sb.Append("NULL");
|
||
else
|
||
{
|
||
ToSqlCaseWhenEnd(cwsb, col);
|
||
sb.Append(cwsb.ToString());
|
||
}
|
||
cwsb.Clear();
|
||
}
|
||
++colidx;
|
||
}
|
||
}
|
||
if (colidx == 0) return null;
|
||
}
|
||
else if (_setIncr.Length == 0)
|
||
return null;
|
||
|
||
if (_setIncr.Length > 0)
|
||
sb.Append(_set.Length > 0 ? _setIncr.ToString() : _setIncr.ToString().Substring(2));
|
||
|
||
if (_source.Any() == false)
|
||
{
|
||
foreach (var col in _table.Columns.Values)
|
||
if (col.Attribute.CanUpdate && string.IsNullOrEmpty(col.DbUpdateValue) == false)
|
||
sb.Append(", ").Append(_commonUtils.QuoteSqlName(col.Attribute.Name)).Append(" = ").Append(col.DbUpdateValue);
|
||
}
|
||
|
||
if (_table.VersionColumn != null)
|
||
{
|
||
var vcname = _commonUtils.QuoteSqlName(_table.VersionColumn.Attribute.Name);
|
||
sb.Append(", ").Append(vcname).Append(" = ").Append(_commonUtils.IsNull(vcname, 0)).Append(" + 1");
|
||
}
|
||
|
||
sb.Append(" \r\nWHERE ");
|
||
if (_source.Any())
|
||
sb.Append("(").Append(_commonUtils.WhereItems(_table, "", _source)).Append(")");
|
||
|
||
if (_where.Length > 0)
|
||
sb.Append(_source.Any() ? _where.ToString() : _where.ToString().Substring(5));
|
||
|
||
if (_whereGlobalFilter.Any())
|
||
{
|
||
var globalFilterCondi = _commonExpression.GetWhereCascadeSql(new SelectTableInfo { Table = _table }, _whereGlobalFilter.Select(a => a.Where).ToList(), false);
|
||
if (string.IsNullOrEmpty(globalFilterCondi) == false)
|
||
sb.Append(" AND ").Append(globalFilterCondi);
|
||
}
|
||
|
||
if (_table.VersionColumn != null)
|
||
{
|
||
var versionCondi = WhereCaseSource(_table.VersionColumn.CsName, sqlval => sqlval);
|
||
if (string.IsNullOrEmpty(versionCondi) == false)
|
||
sb.Append(" AND ").Append(versionCondi);
|
||
}
|
||
|
||
return sb.ToString();
|
||
}
|
||
}
|
||
}
|