public SqlParameter CreateParamater(string name, System.Data.DbType type, int size, System.Data.ParameterDirection direction)
{
return(new SqlParameter
{
ParameterName = name,
DbType = type,
Size = size,
Direction = direction
});
}
/// <summary>
/// Initializes a new instance of the ColumnEnumAttribute class.
/// </summary>
/// <param name="name"></param>
/// <param name="systemType"></param>
/// <param name="dbType"></param>
/// <param name="isPrimaryKey"></param>
/// <param name="isIdentity"></param>
/// <param name="allowDbNull"></param>
/// <param name="length"></param>
public ColumnEnumAttribute(String name, Type systemType, System.Data.DbType dbType, bool isPrimaryKey, bool isIdentity, bool allowDbNull, int length)
{
this.Name = name;
this.SystemType = systemType;
this.DbType = dbType;
this.IsPrimaryKey = isPrimaryKey;
this.IsIdentity = isIdentity;
this.AllowDbNull = allowDbNull;
this.Length = length;
}
/// <summary>
/// Creates a new DBParam with the specified name, DBType, size and direction. Cannot support delegate methods as values
/// </summary>
/// <param name="genericName">The generic name of the parameter (e.g. param1 rather than @param1)</param>
/// <param name="type">The DbType of the parameter</param>
/// <param name="size">The (maximum) size of the parameter value</param>
/// <param name="direction">The parameters direction</param>
/// <returns></returns>
public static DBParam Param(string genericName, System.Data.DbType type, int size, System.Data.ParameterDirection direction)
{
DBParam pref = new DBParamRef();
pref.Name = genericName;
pref.DbType = type;
pref.Size = size;
pref.Direction = direction;
return(pref);
}
/// <summary>
/// Creates a new DBParam with the specified name, type, length and value
/// </summary>
/// <param name="genericName"></param>
/// <param name="type"></param>
/// <param name="length"></param>
/// <param name="value"></param>
/// <returns></returns>
public static DBParam ParamWithValue(string genericName, System.Data.DbType type, int length, object value)
{
DBParam pref = new DBParamRef();
pref.Name = genericName;
pref.DbType = type;
pref.Value = value;
pref.Size = length;
return(pref);
}
/// <summary>
/// [覆盖添加]添加参数
/// </summary>
/// <param name="ParameterName"></param>
/// <param name="Value"></param>
/// <param name="DbType"></param>
/// <param name="Size"></param>
public void AddParameter(string ParameterName, object Value, System.Data.DbType DbType, int Size)
{
DbParameter DbParam = Command.CreateParameter();
DbParam.ParameterName = ParameterName;
DbParam.DbType = DbType;
DbParam.Size = Size;
DbParam.Value = Value;
AddParameter(DbParam);
}
public System.Data.Common.DbParameter CreateParameter(string parameterName, System.Data.DbType dbType, int size, object value)
{
var parameter = CreateParameter();
parameter.ParameterName = parameterName;
parameter.Value = value;
parameter.DbType = dbType;
parameter.Size = size;
return(parameter);
}
private static System.Data.SqlDbType DbTypeToSqlDbType(System.Data.DbType pSourceType)
{
if (pSourceType == System.Data.DbType.Object)
{
return(System.Data.SqlDbType.Text);
}
System.Data.SqlClient.SqlParameter paraConver = new System.Data.SqlClient.SqlParameter();
paraConver.DbType = pSourceType;
return(paraConver.SqlDbType);
}
public static void InitializeInsertCommand <T>(SQLiteCommand cmd)
{
cmd.Parameters.Clear();
var insertColumns = new List <string>();
var insertParameters = new List <string>();
foreach (var prop in typeof(T).GetProperties(BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Instance))
{
if (prop.GetMethod.IsPrivate)
{
continue;
}
var ignoreAttr = prop.GetCustomAttribute <System.ComponentModel.DataAnnotations.Schema.NotMappedAttribute>();
if (ignoreAttr != null)
{
continue;
}
var dbGenAttr = prop.GetCustomAttribute <System.ComponentModel.DataAnnotations.Schema.DatabaseGeneratedAttribute>();
if (dbGenAttr != null &&
dbGenAttr.DatabaseGeneratedOption != System.ComponentModel.DataAnnotations.Schema.DatabaseGeneratedOption.None)
{
continue;
}
var fkAttr = prop.GetCustomAttribute <System.ComponentModel.DataAnnotations.Schema.ForeignKeyAttribute>();
if (fkAttr != null)
{
continue;
}
var columnAttr = prop.GetCustomAttribute <System.ComponentModel.DataAnnotations.Schema.ColumnAttribute>();
string columnName = columnAttr?.Name ?? prop.Name;
insertColumns.Add(columnName);
insertParameters.Add("$" + prop.Name);
System.Data.DbType paramType = System.Data.DbType.String;
if (prop.PropertyType.Name.ToLower().Contains("int"))
{
paramType = System.Data.DbType.Int32;
}
else if (prop.PropertyType.Name.ToLower().Contains("bool"))
{
paramType = System.Data.DbType.Boolean;
}
cmd.Parameters.Add("$" + prop.Name, paramType);
}
cmd.CommandText = $"INSERT INTO {GetTableName<T>()} ({string.Join(",", insertColumns)}) VALUES ({string.Join(",", insertParameters)})";
}
protected MetadataEntityProperty(IEntityMetadata entity, string name, System.Data.DbType type)
{
if (string.IsNullOrEmpty(name))
{
throw new ArgumentNullException(nameof(name));
}
_entity = entity ?? throw new ArgumentNullException(nameof(entity));
_name = name.Trim();
_type = type;
}
public FieldDefinition(string name, System.Data.DbType type, bool nullable = true)
{
if (string.IsNullOrEmpty(name))
{
throw new ArgumentNullException(nameof(name));
}
this.Name = name;
this.DbType = type;
this.Nullable = nullable;
}
private void AddWhereParameters(string Name, System.Data.DbType t, string val)
{
foreach (Parameter p in WhereParameters)
{
if (p.Name == Name)
{
return;
}
}
WhereParameters.Add(Name, t, val);
}
public bool SetDataType(string parameterName, System.Data.DbType type)
{
for (int i = 0; i < Parameters.Count; i++)
{
if (Parameters[i].ParameterName == parameterName)
{
Parameters[i].DbType = type;
return(true);
}
}
return(false);
}
/// <summary>
/// Creates a new DBParam with a delegate method as the value provider (no parameters, returns object).
/// </summary>
/// <param name="type">The DbType of the parameter </param>
/// <param name="valueProvider">The delegate method (cannot be null)</param>
/// <returns></returns>
/// <remarks>
/// The valueProvider method will be executed when any queries using this parameter are converted to their SQL statements
/// </remarks>
public static DBParam ParamWithDelegate(System.Data.DbType type, ParamValue valueProvider)
{
if (null == valueProvider)
{
throw new ArgumentNullException("valueProvider");
}
DBDelegateParam del = new DBDelegateParam(valueProvider);
del.DbType = type;
return(del);
}
public static System.Data.DataTable dtParams()
{
System.Data.DbType tipo = new System.Data.DbType();
System.Data.ParameterDirection direccion = new System.Data.ParameterDirection();
System.Data.DataTable dt = new System.Data.DataTable();
dt.Columns.Add("Nombre", System.Type.GetType("System.String"));
dt.Columns.Add("Tipo", tipo.GetType());
dt.Columns.Add("Size", System.Type.GetType("System.Int32"));
dt.Columns.Add("Direccion", direccion.GetType());
dt.Columns.Add("Valor", System.Type.GetType("System.Object"));
return(dt);
}
} // End Function AddParameter
public virtual System.Data.Common.DbParameter AddParameter(System.Data.Common.DbCommand command, string strParameterName, object objValue, System.Data.ParameterDirection pad)
{
if (objValue == null)
{
//throw new ArgumentNullException("objValue");
objValue = System.DBNull.Value;
} // End if (objValue == null)
System.Type tDataType = objValue.GetType();
System.Data.DbType dbType = GetDbType(tDataType);
return(AddParameter(command, strParameterName, objValue, pad, dbType));
} // End Function AddParameter
public static System.Data.IDbDataParameter AddParameter(System.Data.IDbCommand command, string strParameterName,
object objValue, System.Data.ParameterDirection pad)
{
if (objValue == null)
{
objValue = System.DBNull.Value;
}
System.Type tDataType = objValue.GetType();
System.Data.DbType dbType = GetDbType(tDataType);
return(AddParameter(command, strParameterName, objValue, pad, dbType));
}
/// <summary>
/// Creates a new DBParam with the specified name, type, size and a delegate method as the value provider (no parameters, returns object).
/// </summary>
/// <param name="genericName">The generic name of the parameter (e.g. param1 rather than @param1)</param>
/// <param name="type">The DbType of the parameter</param>
/// <param name="size">The maximum size of the parameter value</param>
/// <param name="valueprovider">The delegate method (cannot be null)</param>
/// <returns></returns>
/// <remarks>
/// The method will be executed when any queries using this parameter are converted to their SQL statements
/// </remarks>
public static DBParam ParamWithDelegate(string genericName, System.Data.DbType type, int size, ParamValue valueprovider)
{
if (null == valueprovider)
{
throw new ArgumentNullException("valueProvider");
}
DBDelegateParam del = new DBDelegateParam(valueprovider);
del.DbType = type;
del.Size = size;
del.Name = genericName;
return(del);
}
/// <summary>
/// Add the parameter to the command.
/// </summary>
/// <param name="command">the command where the parameter will be added.</param>
/// <param name="name">The name of parameter.</param>
/// <param name="type">The type of parameter.</param>
/// <param name="value">The value of the parameter.</param>
/// <param name="size">The size of the parameter.</param>
/// <returns></returns>
public static ICommand Param(this ICommand command, string name, System.Data.DbType type, object value, int size = 0)
{
if (command is BaseStatement)
{
if (value != null)
{
(command as BaseStatement).AddParameter(name, type, value, size);
}
else
{
(command as BaseStatement).AddParameter(name, type, DBNull.Value, size);
}
}
return(command);
}
public System.Data.DbType[] GetMappingColumnTypes(string[] propertyNames)
{
if (propertyNames == null)
{
return(null);
}
System.Data.DbType[] mappingColumnTypes = new System.Data.DbType[propertyNames.Length];
for (int i = 0; i < propertyNames.Length; i++)
{
mappingColumnTypes[i] = GetPropertyConfiguration(propertyNames[i]).DbType;
}
return(mappingColumnTypes);
}
/// <summary>
/// Creates a new SqlParameter, optionally specifying the dbtype.
/// </summary>
/// <param name="value"></param>
/// <param name="dbType"></param>
/// <param name="size"></param>
/// <returns></returns>
public string CreateParameter(object value, System.Data.DbType dbType, int?size = null)
{
_paramIndex++;
var p = new DbParameterValue()
{
ParameterName = string.Concat("p", this._paramIndex.ToString()),
Value = util.ConvertValue(value, dbType),
DbType = dbType,
Size = size
};
this.Parameters.Add(p);
return(p.ParameterName);
}
public static DbParameter MakeParameter(string Name, object value, System.Data.DbType Type)
{
switch (DatabaseSettings.DbType)
{
case Enums.DatabaseType.MsSQL:
return(new SqlParameter(Name, Type)
{
Value = value
});
case Enums.DatabaseType.MySQL:
MySqlParameter p = new MySqlParameter(Name, value);
switch (Type)
{
case System.Data.DbType.String:
p.MySqlDbType = MySqlDbType.Text;
break;
case System.Data.DbType.DateTime:
p.MySqlDbType = MySqlDbType.DateTime;
break;
case System.Data.DbType.Int32:
p.MySqlDbType = MySqlDbType.Int32;
break;
case System.Data.DbType.AnsiString:
p.MySqlDbType = MySqlDbType.Text;
break;
case System.Data.DbType.Boolean:
p.MySqlDbType = MySqlDbType.Bit;
break;
case System.Data.DbType.Int64:
p.MySqlDbType = MySqlDbType.Int64;
break;
default:
break;
}
return(p);
default:
return(null);
}
}
/// <summary>
/// 通过制定属性的索引号，设置属性值
/// </summary>
/// <param name="propertyFieldName">属性字段名</param>
/// <param name="propertyIndex">属性字段的索引位置</param>
/// <param name="Value">字符串值</param>
/// <param name="maxLength">字符长度</param>
protected internal void setProperty(string propertyFieldName, int propertyIndex, string Value, int maxLength)
{
System.Data.DbType dbType = System.Data.DbType.String;
if (maxLength <= 0)
{
dbType = System.Data.DbType.AnsiString;
}
if (Value != null && maxLength > 0 && Value.Length > maxLength)
{
throw new Exception("字段" + propertyFieldName + "的实际长度超出了最大长度" + maxLength);
}
else
{
setPropertyValueAndLength(propertyFieldName, propertyIndex, Value, maxLength, dbType);
}
}
static public Dictionary <string, SQLiteParameter> GetParameters(Guid dataID,
tgProviderSpecificMetadata providerMetadata, tgColumnMetadataCollection columns)
{
lock (parameterCache)
{
if (!parameterCache.ContainsKey(dataID))
{
// The Parameters for this Table haven't been cached yet, this is a one time operation
Dictionary <string, SQLiteParameter> types = new Dictionary <string, SQLiteParameter>();
SQLiteParameter param1;
foreach (tgColumnMetadata col in columns)
{
tgTypeMap typeMap = providerMetadata.GetTypeMap(col.PropertyName);
if (typeMap != null)
{
string nativeType = typeMap.NativeType;
System.Data.DbType dbType = Cache.NativeTypeToDbType(nativeType);
param1 = new SQLiteParameter(Delimiters.Param + col.PropertyName, dbType, 0, col.Name);
param1.SourceColumn = col.Name;
switch (dbType)
{
case System.Data.DbType.Int64:
//case VistaDBType.Int:
//case VistaDBType.SmallInt:
//case VistaDBType.Decimal:
//case VistaDBType.Float:
//case VistaDBType.Money:
//case VistaDBType.SmallMoney:
param1.Size = (int)col.CharacterMaxLength;
break;
}
types[col.Name] = param1;
}
}
parameterCache[dataID] = types;
}
}
return(parameterCache[dataID]);
}
public override void WriteLiteral(System.Data.DbType dbType, object value, bool isInorNot = false)
{
if (dbType == System.Data.DbType.Time)
{
WriteLiteralToDate(value, "HH:mm:ss", "HH24:MI:SS");
}
else if (dbType == System.Data.DbType.Date)
{
WriteLiteralToDate(value, "yyyy-MM-dd", "YYYY-MM-DD");
}
else if (dbType == System.Data.DbType.DateTime || dbType == System.Data.DbType.DateTime2)
{
WriteLiteralToDate(value, "yyyy-MM-dd HH:mm:ss", "YYYY-MM-DD HH24:MI:SS");
}
else
{
base.WriteLiteral(dbType, value);
}
}
public static Type ToType(this System.Data.DbType dbType)
{
var typeMap = new Dictionary <System.Data.DbType, Type>
{
[System.Data.DbType.Byte] = typeof(byte),
[System.Data.DbType.SByte] = typeof(sbyte),
[System.Data.DbType.Int16] = typeof(short),
[System.Data.DbType.UInt16] = typeof(ushort),
[System.Data.DbType.Int32] = typeof(int),
[System.Data.DbType.UInt32] = typeof(uint),
[System.Data.DbType.Int64] = typeof(long),
[System.Data.DbType.UInt64] = typeof(ulong),
[System.Data.DbType.Single] = typeof(float),
[System.Data.DbType.Double] = typeof(double),
[System.Data.DbType.Decimal] = typeof(decimal),
[System.Data.DbType.Boolean] = typeof(bool),
[System.Data.DbType.String] = typeof(string),
[System.Data.DbType.StringFixedLength] = typeof(char),
[System.Data.DbType.Guid] = typeof(Guid),
[System.Data.DbType.DateTime] = typeof(DateTime),
[System.Data.DbType.DateTimeOffset] = typeof(DateTimeOffset),
[System.Data.DbType.Binary] = typeof(byte[]),
[System.Data.DbType.Byte] = typeof(byte?),
[System.Data.DbType.SByte] = typeof(sbyte?),
[System.Data.DbType.Int16] = typeof(short?),
[System.Data.DbType.UInt16] = typeof(ushort?),
[System.Data.DbType.Int32] = typeof(int?),
[System.Data.DbType.UInt32] = typeof(uint?),
[System.Data.DbType.Int64] = typeof(long?),
[System.Data.DbType.UInt64] = typeof(ulong?),
[System.Data.DbType.Single] = typeof(float?),
[System.Data.DbType.Double] = typeof(double?),
[System.Data.DbType.Decimal] = typeof(decimal?),
[System.Data.DbType.Boolean] = typeof(bool?),
[System.Data.DbType.StringFixedLength] = typeof(char?),
[System.Data.DbType.Guid] = typeof(Guid?),
[System.Data.DbType.DateTime] = typeof(DateTime?),
[System.Data.DbType.DateTimeOffset] = typeof(DateTimeOffset?)
//,[System.Data.DbType.Binary] = typeof(System.Data.Linq.Binary)
};
return(typeMap[dbType]);
}
public void setAttribute(string name, System.Reflection.CustomAttributeTypedArgument attr)
{
if (attr.ArgumentType.Equals(typeof(AccessTypes)))
{
AccessType = (AccessTypes)attr.Value;
}
else if (attr.ArgumentType.Equals(typeof(ColumnTypes)))
{
ColumnType = (ColumnTypes)attr.Value;
}
else if (attr.ArgumentType.Equals(typeof(System.Data.DbType)))
{
DbType = (System.Data.DbType)attr.Value;
}
else if (name == "ColumnName")
{
Name = (string)attr.Value;
}
}
private static System.Data.DbType GetDbType(object obj)
{
if (obj == null)
{
return(System.Data.DbType.Object);
}
System.Type type = obj.GetType();
// http://social.msdn.microsoft.com/Forums/en/winforms/thread/c6f3ab91-2198-402a-9a18-66ce442333a6
string strTypeName = type.Name;
System.Data.DbType dbType = System.Data.DbType.String; // default value
try
{
if (object.ReferenceEquals(type, typeof(System.DBNull)))
{
return(dbType);
}
if (object.ReferenceEquals(type, typeof(System.Byte[])))
{
return(System.Data.DbType.Binary);
}
dbType = (System.Data.DbType)System.Enum.Parse(typeof(System.Data.DbType), strTypeName, true);
// Es ist keine Zuordnung von DbType UInt64 zu einem bekannten SqlDbType vorhanden.
// http://msdn.microsoft.com/en-us/library/bbw6zyha(v=vs.71).aspx
if (dbType == System.Data.DbType.UInt64)
{
dbType = System.Data.DbType.Int64;
}
}
catch (System.Exception)
{
// add error handling to suit your taste
}
return(dbType);
} // End Function GetDbType
protected override string GetNativeTypeForDbType(System.Data.DbType dbType, int setSize, int accuracy, DBColumnFlags flags, out string options)
{
switch (dbType)
{
case System.Data.DbType.Guid:
options = "";
return(" VARCHAR(50)");
case System.Data.DbType.Int16:
case System.Data.DbType.Int32:
case System.Data.DbType.Int64:
case System.Data.DbType.UInt16:
case System.Data.DbType.UInt32:
case System.Data.DbType.UInt64:
options = string.Empty;
return(" INTEGER");
default:
return(base.GetNativeTypeForDbType(dbType, setSize, accuracy, flags, out options));
}
}
protected static System.Data.DbType GetDbType(System.Type type)
{
// http://social.msdn.microsoft.com/Forums/en/winforms/thread/c6f3ab91-2198-402a-9a18-66ce442333a6
string strTypeName = type.Name;
System.Data.DbType DBtype = System.Data.DbType.String; // default value
if (object.ReferenceEquals(type, typeof(System.DBNull)))
{
return(DBtype);
}
try
{
DBtype = (System.Data.DbType)System.Enum.Parse(typeof(System.Data.DbType), strTypeName, true);
}
catch
{
}
return(DBtype);
}
public string GetDbType(System.Data.DbType dbType, int length, byte precision, byte scale)
{
return(dbType.ToString());
}
public static HsqlProviderType ToHsqlProviderType(DbType type)
{
switch (type)
{
case DbType.AnsiString:
{
return HsqlProviderType.VarChar;
}
case DbType.AnsiStringFixedLength:
{
return HsqlProviderType.Char;
}
case DbType.Binary:
{
return HsqlProviderType.Binary;
}
case DbType.Boolean:
{
return HsqlProviderType.Boolean;
}
case DbType.Byte:
{
return HsqlProviderType.SmallInt;
}
case DbType.Currency:
{
return HsqlProviderType.Decimal;
}
case DbType.Date:
{
return HsqlProviderType.TimeStamp;
}
case DbType.DateTime:
{
return HsqlProviderType.TimeStamp;
}
case DbType.DateTime2:
{
return HsqlProviderType.TimeStamp;
}
case DbType.DateTimeOffset:
{
return HsqlProviderType.Char;
}
case DbType.Decimal:
{
return HsqlProviderType.Decimal;
}
case DbType.Double:
{
return HsqlProviderType.Double;
}
case DbType.Guid:
{
return HsqlProviderType.Binary;
}
case DbType.Int16:
{
return HsqlProviderType.SmallInt;
}
case DbType.Int32:
{
return HsqlProviderType.Integer;
}
case DbType.Int64:
{
return HsqlProviderType.BigInt;
}
case DbType.Object:
{
return HsqlProviderType.Object;
}
case DbType.SByte:
{
return HsqlProviderType.TinyInt;
}
case DbType.Single:
{
return HsqlProviderType.Real;
}
case DbType.String:
{
return HsqlProviderType.VarChar;
}
case DbType.StringFixedLength:
{
return HsqlProviderType.Char;
}
case DbType.Time:
{
return HsqlProviderType.TimeStamp;
}
case DbType.UInt16:
{
return HsqlProviderType.Integer;
}
case DbType.UInt32:
{
return HsqlProviderType.BigInt;
}
case DbType.UInt64:
{
return HsqlProviderType.Numeric;
}
case DbType.VarNumeric:
{
return HsqlProviderType.Numeric;
}
case DbType.Xml:
{
return HsqlProviderType.Xml;
}
default:
{
return HsqlProviderType.Object;
}
}
}