Example #1
0
        private void Init(IRepository repository, string outFile)
        {
            _outFile = outFile;
            _repository = repository;
            _sbScript = new StringBuilder(10485760);
            _tableNames = _repository.GetAllTableNames();
            _allColumns = _repository.GetAllColumns();
            _allForeignKeys = repository.GetAllForeignKeys();
            _allPrimaryKeys = repository.GetAllPrimaryKeys();
            if (!repository.IsServer())
                _allIndexes = repository.GetAllIndexes();

            string scriptEngineBuild = AssemblyFileVersion;

            if (_repository.IsServer())
            {
                // Check if datatypes are supported when exporting from server
                // Either they can be converted, are supported, or an exception is thrown (if not supported)
                // Currently only sql_variant is not supported
                foreach (Column col in _allColumns)
                {
                    col.CharacterMaxLength = Helper.CheckDateColumnLength(col.DataType, col);
                    col.DateFormat = Helper.CheckDateFormat(col.DataType);

                    // Check if the current column points to a unique identity column,
                    // as the two columns' datatypes must match
                    bool refToIdentity = false;
                    Dictionary<string, Constraint> columnForeignKeys = new Dictionary<string, Constraint>();

                    // Fix for multiple constraints with same columns
                    var _tableKeys = _allForeignKeys.Where(c => c.ConstraintTableName == col.TableName);
                    foreach (var constraint in _tableKeys)
                    { 
                        if (!columnForeignKeys.ContainsKey(constraint.Columns.ToString()))
                        {
                            columnForeignKeys.Add(constraint.Columns.ToString(), constraint);
                        }
                    }

                    if (columnForeignKeys.ContainsKey(string.Format("[{0}]", col.ColumnName)))
                    {
                        var refCol = _allColumns.Where(c => c.TableName == columnForeignKeys[string.Format("[{0}]", col.ColumnName)].UniqueConstraintTableName
                            && string.Format("[{0}]", c.ColumnName) == columnForeignKeys[string.Format("[{0}]", col.ColumnName)].UniqueColumnName).FirstOrDefault();
                        if (refCol != null && refCol.AutoIncrementBy > 0)
                        {
                            refToIdentity = true;
                        }
                    }
                    col.ServerDataType = col.DataType;
                    // This modifies the datatype to be SQL Compact compatible
                    col.DataType = Helper.CheckDataType(col.DataType, col, refToIdentity, _preserveDateAndDateTime2);
                }
            }
            _sbScript.AppendFormat("-- Script Date: {0} {1}  - ErikEJ.SqlCeScripting version {2}", DateTime.Now.ToShortDateString(), DateTime.Now.ToShortTimeString(), scriptEngineBuild);
            _sbScript.AppendLine();
            if (!string.IsNullOrEmpty(_outFile) && !_repository.IsServer())
            {
                GenerateDatabaseInfo();
            }
            //if (!string.IsNullOrEmpty(_outFile) && _sqlite)
            //{
            //    _sbScript.AppendLine("SELECT 1;");
            //    _sbScript.AppendLine("PRAGMA foreign_keys=OFF;");
            //    _sbScript.AppendLine("BEGIN TRANSACTION;");
            //}
        }