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- using System;
- using System.Collections.Generic;
- using System.Linq;
- using System.Text;
- using System.Threading.Tasks;
-
- namespace RDH.Data
- {
- public abstract class BaseBLL
- {
- public BaseBLL() { InitMaps(); }
-
- internal Dictionary<string, string> ColumnPropMaps = new Dictionary<string, string>();
- internal abstract String TABLE_NAME {get;}//TB_NAME
- internal abstract string ENTITY_NAME { get; }
- internal abstract String KEY_COLUMN { get; }//KEY_COLUMN
- internal virtual string SNAPSHOT_BASE { get { return string.Empty; } }
- /// <summary>
- /// 获取或设置表的别名
- /// </summary>
- internal virtual String AliasTableName
- {
- get;
- set;
- }
- internal abstract void InitMaps();
-
-
-
- protected virtual string BuildBaseSql()
- {
-
- StringBuilder selectValues = new StringBuilder();
-
- foreach (var c in ColumnPropMaps)
- {
- selectValues.AppendFormat("\"{0}\" \"{1}\",", c.Key, c.Value);
- }
-
- selectValues.Remove(selectValues.Length - 1, 1);
- return string.Format("SELECT {1} FROM \"{0}\" ", TABLE_NAME, selectValues);
- }
-
- protected virtual string BuildGetSql()
- {
-
- StringBuilder selectValues = new StringBuilder();
- string keyWhere = string.Format("\"{0}\" = :{1}", KEY_COLUMN, ColumnPropMaps[KEY_COLUMN]);
- foreach (var c in ColumnPropMaps)
- {
- selectValues.AppendFormat("\"{0}\" \"{1}\",", c.Key, c.Value);
- }
-
- selectValues.Remove(selectValues.Length - 1, 1);
- return string.Format("SELECT {1} FROM \"{0}\" WHERE {2}", TABLE_NAME, selectValues, keyWhere);
-
- }
-
- protected virtual string BuildInsertSql()
- {
-
- StringBuilder cols = new StringBuilder();
- StringBuilder parms = new StringBuilder();
- foreach (var c in ColumnPropMaps)
- {
- cols.AppendFormat("\"{0}\",", c.Key);
- parms.AppendFormat(":{0},", c.Value);
- }
-
- cols.Remove(cols.Length - 1, 1);
- parms.Remove(parms.Length - 1, 1);
- return string.Format("INSERT INTO \"{0}\" ({1}) VALUES ({2})", TABLE_NAME, cols, parms);
- }
-
- protected virtual string BuildUpdateSql()
- {
- StringBuilder setters = new StringBuilder();
- string keyWhere = string.Format("\"{0}\" = :{1}", KEY_COLUMN, ColumnPropMaps[KEY_COLUMN]);
- foreach (var c in ColumnPropMaps)
- {
- if (c.Key != KEY_COLUMN)
- setters.AppendFormat("\"{0}\" = :{1},", c.Key, c.Value);
- }
- setters.Remove(setters.Length - 1, 1);
-
- return string.Format("UPDATE \"{0}\" SET {1} WHERE {2}", TABLE_NAME, setters, keyWhere);
- }
-
- protected virtual string BuildDeleteSql()
- {
- string keyWhere = string.Format("\"{0}\" = :{1}", KEY_COLUMN, ColumnPropMaps[KEY_COLUMN]);
- return string.Format("DELETE FROM \"{0}\" WHERE {1}", TABLE_NAME, keyWhere);
- }
-
-
- protected virtual string BuildGetCurrentSql()
- {
-
- StringBuilder selectValues = new StringBuilder();
- string keyWhere = string.Format("\"{0}\" = :{1} ", "KEY", "Key");
- foreach (var c in ColumnPropMaps)
- {
- selectValues.AppendFormat("\"{0}\" \"{1}\",", c.Key, c.Value);
- }
-
- selectValues.Remove(selectValues.Length - 1, 1);
- return string.Format("SELECT {1} FROM \"{0}\" WHERE {2}", TABLE_NAME, selectValues, keyWhere);
-
- }
-
- protected virtual string BuildInsertSnapshotBaseSql()
- {
-
- StringBuilder cols = new StringBuilder();
- StringBuilder parms = new StringBuilder();
-
- cols.AppendFormat("\"{0}\",", "KEY");
- parms.AppendFormat(":{0},", "Key");
-
-
- cols.Remove(cols.Length - 1, 1);
- parms.Remove(parms.Length - 1, 1);
- return string.Format("INSERT INTO \"{0}\" ({1}) VALUES ({2})", SNAPSHOT_BASE, cols, parms);
- }
-
-
-
- }
- }
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