internal void CollectFields(IDbConnection p_Conn)
{
string commandText = "SELECT c.Column_Name, c.Column_Default, c.Is_Nullable, c.Data_Type, c.Character_Maximum_Length, c.Numeric_Precision, c.Numeric_Scale FROM Information_Schema.Columns c WHERE Table_Name = @Table ORDER BY Ordinal_Position ; ";
List <DBFieldInfo> list = new List <DBFieldInfo>();
IDbCommand dbCommand = null;
IDataReader dataReader = null;
try
{
dbCommand = p_Conn.CreateCommand();
dbCommand.CommandType = CommandType.Text;
dbCommand.CommandText = commandText;
IDbDataParameter dbDataParameter = dbCommand.CreateParameter();
dbDataParameter.ParameterName = "Table";
dbDataParameter.Value = this._TableName;
dbCommand.Parameters.Add(dbDataParameter);
dataReader = dbCommand.ExecuteReader();
while (dataReader.Read())
{
int num = 0;
string p_Column_Name = dataReader.IsDBNull(num) ? "" : dataReader.GetString(num);
num++;
string p_Column_Default = dataReader.IsDBNull(num) ? "" : dataReader.GetString(num);
num++;
string text = dataReader.IsDBNull(num) ? "" : dataReader.GetString(num);
num++;
string p_Data_Type = dataReader.IsDBNull(num) ? "" : dataReader.GetString(num);
num++;
int p_Character_Maximum_Length = dataReader.IsDBNull(num) ? 0 : dataReader.GetInt32(num);
num++;
int p_Numeric_Precision = (int)(dataReader.IsDBNull(num) ? 0 : dataReader.GetByte(num));
num++;
int p_Numeric_Scale = dataReader.IsDBNull(num) ? 0 : dataReader.GetInt32(num);
num++;
bool p_Is_Nullable = text.Equals("YES");
DBFieldInfo item = new DBFieldInfo(p_Column_Name, p_Column_Default, p_Is_Nullable, p_Character_Maximum_Length, p_Numeric_Precision, p_Numeric_Scale, p_Data_Type);
list.Add(item);
}
}
finally
{
if (dataReader != null)
{
dataReader.Close();
}
if (dbCommand != null)
{
dbCommand.Dispose();
}
}
this._DbFieldInfo = list.ToArray();
this.CollectPrimaryKeys(p_Conn);
this.CollectForeignKeys(p_Conn);
this.CollectDependentTables(p_Conn);
}
private void CollectPrimaryKeys(IDbConnection p_Conn)
{
string commandText = "SELECT tc.CONSTRAINT_NAME, tc.TABLE_NAME, ccu.COLUMN_NAME FROM INFORMATION_SCHEMA.TABLE_CONSTRAINTS tc JOIN INFORMATION_SCHEMA.CONSTRAINT_COLUMN_USAGE ccu ON\tccu.CONSTRAINT_CATALOG = tc.CONSTRAINT_CATALOG\tAND ccu.TABLE_NAME = tc.TABLE_NAME\tAND ccu.CONSTRAINT_NAME = tc.CONSTRAINT_NAME WHERE tc.CONSTRAINT_TYPE = 'PRIMARY KEY' AND tc.TABLE_NAME = @Table";
IDbCommand dbCommand = null;
IDataReader dataReader = null;
try
{
dbCommand = p_Conn.CreateCommand();
dbCommand.CommandType = CommandType.Text;
dbCommand.CommandText = commandText;
IDbDataParameter dbDataParameter = dbCommand.CreateParameter();
dbDataParameter.ParameterName = "Table";
dbDataParameter.Value = this._TableName;
dbCommand.Parameters.Add(dbDataParameter);
dataReader = dbCommand.ExecuteReader();
while (dataReader.Read())
{
int num = 0;
string arg_7A_0 = dataReader.IsDBNull(num) ? "" : dataReader.GetString(num);
num++;
string arg_97_0 = dataReader.IsDBNull(num) ? "" : dataReader.GetString(num);
num++;
string value = dataReader.IsDBNull(num) ? "" : dataReader.GetString(num);
num++;
DBFieldInfo[] dbFieldInfo = this._DbFieldInfo;
for (int i = 0; i < dbFieldInfo.Length; i++)
{
DBFieldInfo dbFieldInfo2 = dbFieldInfo[i];
if (dbFieldInfo2.Column_Name.Equals(value))
{
dbFieldInfo2.Is_Primary_Key = true;
}
}
}
}
finally
{
if (dataReader != null)
{
dataReader.Close();
}
if (dbCommand != null)
{
dbCommand.Dispose();
}
dataReader = null;
dbCommand = null;
}
}
public DBFieldInfo GetPkField()
{
DBFieldInfo result = null;
DBFieldInfo[] dbFieldInfo = this._DbFieldInfo;
for (int i = 0; i < dbFieldInfo.Length; i++)
{
DBFieldInfo dbFieldInfo2 = dbFieldInfo[i];
if (dbFieldInfo2.Is_Primary_Key)
{
result = dbFieldInfo2;
break;
}
}
return(result);
}
public bool HasProperty(string prop)
{
DBFieldInfo[] dbFieldInfo = this._DbFieldInfo;
bool result;
for (int i = 0; i < dbFieldInfo.Length; i++)
{
DBFieldInfo dbFieldInfo2 = dbFieldInfo[i];
if (dbFieldInfo2.Column_Name == prop)
{
result = true;
return(result);
}
}
result = false;
return(result);
}
public string GetLabel()
{
return(DBFieldInfo.MakeLabel(this._TableName));
}
private void CollectForeignKeys(IDbConnection p_Conn)
{
string commandText = "SELECT FK.TABLE_NAME AS K_Table, CU.COLUMN_NAME AS FK_Column, PK.TABLE_NAME AS PK_Table, PT.COLUMN_NAME AS PK_Column, C.CONSTRAINT_NAME AS Constraint_Name FROM INFORMATION_SCHEMA.REFERENTIAL_CONSTRAINTS C INNER JOIN INFORMATION_SCHEMA.TABLE_CONSTRAINTS FK ON C.CONSTRAINT_NAME = FK.CONSTRAINT_NAME INNER JOIN INFORMATION_SCHEMA.TABLE_CONSTRAINTS PK ON C.UNIQUE_CONSTRAINT_NAME = PK.CONSTRAINT_NAME INNER JOIN INFORMATION_SCHEMA.KEY_COLUMN_USAGE CU\tON C.CONSTRAINT_NAME = CU.CONSTRAINT_NAME INNER JOIN (\t\tSELECT i1.TABLE_NAME, i2.COLUMN_NAME\t\tFROM INFORMATION_SCHEMA.TABLE_CONSTRAINTS i1\t\tINNER JOIN\tINFORMATION_SCHEMA.KEY_COLUMN_USAGE i2\t\t\tON i1.CONSTRAINT_NAME = i2.CONSTRAINT_NAME\t\tWHERE i1.CONSTRAINT_TYPE = 'PRIMARY KEY'\t\t) PT ON PT.TABLE_NAME = PK.TABLE_NAME WHERE FK.TABLE_NAME = @Table";
List <DBForeignKeyInfo> list = new List <DBForeignKeyInfo>();
IDbCommand dbCommand = null;
IDataReader dataReader = null;
try
{
dbCommand = p_Conn.CreateCommand();
dbCommand.CommandType = CommandType.Text;
dbCommand.CommandText = commandText;
IDbDataParameter dbDataParameter = dbCommand.CreateParameter();
dbDataParameter.ParameterName = "Table";
dbDataParameter.Value = this._TableName;
dbCommand.Parameters.Add(dbDataParameter);
dataReader = dbCommand.ExecuteReader();
while (dataReader.Read())
{
int num = 0;
string arg_8D_0 = dataReader.IsDBNull(num) ? "" : dataReader.GetString(num);
num++;
string p_FK_Column = dataReader.IsDBNull(num) ? "" : dataReader.GetString(num);
num++;
string p_PK_Table = dataReader.IsDBNull(num) ? "" : dataReader.GetString(num);
num++;
string p_PK_Column = dataReader.IsDBNull(num) ? "" : dataReader.GetString(num);
num++;
string p_Constraint_Name = dataReader.IsDBNull(num) ? "" : dataReader.GetString(num);
num++;
DBForeignKeyInfo item = new DBForeignKeyInfo(p_FK_Column, p_PK_Table, p_PK_Column, p_Constraint_Name, "Name");
list.Add(item);
}
}
finally
{
if (dataReader != null)
{
dataReader.Close();
}
if (dbCommand != null)
{
dbCommand.Dispose();
}
dataReader = null;
dbCommand = null;
}
commandText = "SELECT TOP 1 COLUMN_NAME FROM INFORMATION_SCHEMA.COLUMNS WHERE DATA_TYPE IN ('nvarchar', 'varchar') AND CHARACTER_MAXIMUM_LENGTH > 3 AND TABLE_NAME = @Table ORDER BY CASE WHEN COLUMN_NAME LIKE '%NAME%' THEN 0 ELSE 1 END, ORDINAL_POSITION";
foreach (DBForeignKeyInfo current in list)
{
try
{
dbCommand = p_Conn.CreateCommand();
dbCommand.CommandType = CommandType.Text;
dbCommand.CommandText = commandText;
IDbDataParameter dbDataParameter = dbCommand.CreateParameter();
dbDataParameter.ParameterName = "Table";
dbDataParameter.Value = current.PK_Table;
dbCommand.Parameters.Add(dbDataParameter);
dataReader = dbCommand.ExecuteReader();
while (dataReader.Read())
{
int num = 0;
string pK_DescriptorColumn = dataReader.IsDBNull(num) ? "" : dataReader.GetString(num);
num++;
current.PK_DescriptorColumn = pK_DescriptorColumn;
}
}
finally
{
if (dataReader != null)
{
dataReader.Close();
}
if (dbCommand != null)
{
dbCommand.Dispose();
}
dataReader = null;
dbCommand = null;
}
DBFieldInfo[] dbFieldInfo = this._DbFieldInfo;
for (int i = 0; i < dbFieldInfo.Length; i++)
{
DBFieldInfo dbFieldInfo2 = dbFieldInfo[i];
if (dbFieldInfo2.Column_Name.Equals(current.FK_Column))
{
dbFieldInfo2.ForeignKeyInfo = current;
break;
}
}
}
}
public string GetLabel()
{
return(DBFieldInfo.MakeLabel(this._Column_Name));
}
