/// <summary>
/// 格式化值项
/// </summary>
/// <param name="valueItem"></param>
/// <returns></returns>
private string FormatValueType(KeyWordInfomation info)
{
Type valueDataType = null;
if (itemValue != null)
{
valueDataType = itemValue.GetType();
}
if (DefaultType.EqualType(valueDataType, DefaultType.StringType) || DefaultType.EqualType(valueDataType, DefaultType.GUIDType))
{
return(DataAccessCommon.FormatValue(itemValue, DbType.String, info.DBInfo));
}
else if (DefaultType.EqualType(valueDataType, DefaultType.DateTimeType))
{
return(DataAccessCommon.FormatValue(itemValue, DbType.DateTime, info.DBInfo));
}
else if (DefaultType.EqualType(valueDataType, DefaultType.BytesType))
{
return(DataAccessCommon.FormatValue(itemValue, DbType.Binary, info.DBInfo));
}
else if (DefaultType.EqualType(valueDataType, DefaultType.BooleanType))
{
return(DataAccessCommon.FormatValue(itemValue, DbType.Boolean, info.DBInfo));
}
else if (DefaultType.EqualType(valueDataType, DefaultType.GUIDType))
{
return(DataAccessCommon.FormatValue(itemValue, DbType.Guid, info.DBInfo));
}
else if (valueDataType == null)
{
return("null");
}
return(itemValue.ToString());
}
/// <summary>
/// 获取创建注释的SQL
/// </summary>
/// <param name="table">表</param>
/// <param name="paramName">字段(如果为空则给表设置注释)</param>
/// <param name="description">注释</param>
/// <returns></returns>
public string GetAddDescriptionSQL(KeyWordTableParamItem table, EntityParam pInfo, DBInfo info)
{
string description = pInfo == null ? table.Description : pInfo.Description;
string descriptionValue = DataAccessCommon.FormatValue(description, DbType.AnsiString, info);
if (pInfo == null)
{
return("comment on table " + FormatTableName(table.TableName) + " is " + descriptionValue);
}
return("comment on column " + FormatTableName(table.TableName) + "." + FormatParam(pInfo.ParamName) + " is " + descriptionValue);
}
/// <summary>
/// 获取param里边的值的信息
/// </summary>
/// <param name="db">数据库</param>
/// <param name="showBinary">是否显示byte[]</param>
/// <param name="hideTextLength">当字符串长度大于这个值时候，则隐藏值</param>
/// <returns></returns>
public string GetParamString(DBInfo db, bool showBinary, int hideTextLength)
{
StringBuilder ret = new StringBuilder(500);
for (int i = 0; i < this.Count; i++)
{
DBParameter prm = this[i];
IDataParameter dPrm = GetParameter(prm, db);
string value = null;
if (dPrm.Value != null)
{
if (dPrm.DbType == DbType.Binary && !showBinary)
{
Array val = dPrm.Value as Array;
if (val != null)
{
value = "[Binary len=" + val.Length + "]";
}
else
{
value = "[Binary null]";
}
}
else if (hideTextLength > 0)
{
string strValue = dPrm.Value as string;
if (strValue != null && strValue.Length > hideTextLength)
{
value = "[String len=" + strValue.Length + "]";
}
}
}
if (value == null)
{
value = DataAccessCommon.FormatValue(dPrm.Value, dPrm.DbType, db);
}
ret.Append(dPrm.ParameterName);
ret.Append("(");
ret.Append(dPrm.DbType);
ret.Append(")");
ret.Append("=");
ret.Append(value);
ret.Append(",");
}
if (ret.Length > 0)
{
ret.Remove(ret.Length - 1, 1);
}
return(ret.ToString());
}
/// <summary>
/// 获取创建注释的SQL
/// </summary>
/// <param name="table">表</param>
/// <param name="paramName">字段(如果为空则给表设置注释)</param>
/// <param name="description">注释</param>
/// <returns></returns>
public string GetAddDescriptionSQL(KeyWordTableParamItem table, EntityParam pInfo, DBInfo info)
{
string tableValue = DataAccessCommon.FormatValue(table.TableName, DbType.AnsiString, info);
string description = pInfo == null ? table.Description : pInfo.Description;
string descriptionValue = DataAccessCommon.FormatValue(description, DbType.AnsiString, info);
if (pInfo == null)
{
return("COMMENT ON TABLE " + FormatTableName(table.TableName) + " IS " + descriptionValue);
}
return("COMMENT ON COLUMN " + FormatTableName(table.TableName) + "." + FormatParam(pInfo.ParamName) + " IS " + descriptionValue);
}
/// <summary>
/// 获取创建注释的SQL
/// </summary>
/// <param name="table">表</param>
/// <param name="paramName">字段(如果为空则给表设置注释)</param>
/// <param name="description">注释</param>
/// <returns></returns>
public string GetAddDescriptionSQL(KeyWordTableParamItem table, EntityParam pInfo, DBInfo info)
{
string tableValue = DataAccessCommon.FormatValue(table.TableName, DbType.AnsiString, info);
string description = pInfo == null ? table.Description : pInfo.Description;
string descriptionValue = DataAccessCommon.FormatValue(description, DbType.AnsiString, info);
if (pInfo == null)
{
return("EXECUTE sp_addextendedproperty N'MS_Description', N" + descriptionValue + ", N'SCHEMA', N'dbo', N'TABLE', N" + tableValue + ", NULL, NULL");
}
return("EXECUTE sp_addextendedproperty N'MS_Description', N" + descriptionValue + ", N'SCHEMA', N'dbo', N'TABLE', N" + tableValue + ", N'COLUMN', N'" + pInfo.ParamName + "'");
}
/// <summary>
/// 返回Like的查询字符串
/// </summary>
/// <param name="scope">条件类</param>
/// <param name="list">参数列表</param>
/// <param name="paranName">所属的字段名</param>
/// <param name="type">当前的数据库类型</param>
/// <param name="lstIndex">当前索引的标识未辨别同名字段的参数，可设置为0</param>
/// <param name="entityType">当前实体的类型</param>
/// <param name="connectString">条件连接的字符串</param>
/// <param name="isFreeText">是否全文检索</param>
/// <returns></returns>
public static string GetLikeSql(Scope scope, ParamList list, string paranName, DbType type, int lstIndex, Type entityType, string connectString, bool isFreeText)
{
//string fullName = entityType.FullName + "." + scope.PropertyName;
DBInfo db = EntityInfoManager.GetEntityHandle(entityType).DBInfo;
string ret = " " + connectString;
string paramVal = db.CurrentDbAdapter.FormatValueName(DataAccessCommon.FormatParam(paranName, lstIndex));
string paramKey = db.CurrentDbAdapter.FormatParamKeyName(DataAccessCommon.FormatParam(paranName, lstIndex));
if (isFreeText && !NoiseWord.IsNoiseWord(scope.Value1.ToString()))
{
if (list != null)
{
ret += db.CurrentDbAdapter.FreeTextLike(paranName, paramVal);
list.AddNew(paramKey, type, scope.Value1);
}
else
{
ret += db.CurrentDbAdapter.FreeTextLike(paranName, DataAccessCommon.FormatValue(scope.Value1, type, db));
}
}
else
{
if (list != null)
{
string curValue = scope.Value1.ToString();
curValue = FilterLikeValue(curValue);
ret += " (" + db.CurrentDbAdapter.FormatParam(paranName) + " like " + db.CurrentDbAdapter.ConcatString("'%'", paramVal, "'%'") + ")";
list.AddNew(paramKey, type, curValue);
}
else
{
string curValue = scope.Value1.ToString();
curValue = FilterLikeValue(curValue);
ret += " (" + db.CurrentDbAdapter.FormatParam(paranName) + " like '%" + curValue + "%')";
}
}
return(ret);
}
//private Dictionary<string, bool> _tables;
///// <summary>
///// 本次语句关联的表
///// </summary>
//public Dictionary<string, bool> Tables
//{
// get { return _tables; }
// internal set { _tables = value; }
//}
///// <summary>
///// 初始化缓存表信息
///// </summary>
///// <returns></returns>
//internal bool SetCacheTable(string tabelName)
//{
// if (_tables == null)
// {
// _tables = new Dictionary<string, bool>();
// }
// _tables[tabelName] = true;
// return true;
//}
/// <summary>
/// 新的数据库值
/// </summary>
/// <param name="type">数据库类型</param>
/// <param name="paramValue">值类型</param>
/// <returns></returns>
public DBParameter NewParameter(DbType type, object paramValue, DBInfo db)
{
if (paramValue is byte[])
{
string pKeyName = NewKeyName(db);
string valueKey = NewValueKeyName(db);
DBParameter prmValue = AddNew(pKeyName, type, paramValue);
prmValue.ValueName = valueKey;
return(prmValue);
}
else
{
string strValue = paramValue as string;
if (strValue != null && strValue.Length > 5000)
{
string pKeyName = NewKeyName(db);
string valueKey = NewValueKeyName(db);
DBParameter prmValue = AddNew(pKeyName, type, paramValue);
prmValue.ValueName = valueKey;
return(prmValue);
}
}
DBParameter prm = null;
string key = ((int)type).ToString() + ":" + DataAccessCommon.FormatValue(paramValue, type, db);
if (!_dicExistsValue.TryGetValue(key, out prm))
{
string pKeyName = NewKeyName(db);
string valueName = NewValueKeyName(db);
prm = AddNew(pKeyName, type, paramValue);
prm.ValueName = valueName;
_dicExistsValue[key] = prm;
}
return(prm);
}
/// <summary>
/// 获取在字段添加SQL
/// </summary>
/// <param name="table">表</param>
/// <param name="pInfo">字段（如果为空则设置表注释）</param>
/// <returns></returns>
public virtual string GetColumnDescriptionSQL(EntityParam pInfo, DBInfo info)
{
string comm = DataAccessCommon.FormatValue(pInfo.Description, DbType.String, info);
return("COMMENT " + comm);
}