コード例 #1
0
        public string GetColumnNamesAsCommandText(string overrideTableName = "")
        {
            if (!string.IsNullOrEmpty(overrideTableName))
            {
                overrideTableName = TableName;
            }
            var sbCommandText = new StringBuilder();

            string comma = "";

            for (int i = 0; i < DataModelColumnProperties.Count(); i++)
            {
                sbCommandText.Append($"{comma}{overrideTableName}.{DataModelColumnProperties[i].ColumnName}");
                comma = " ,";
            }
            for (int i = 0; i < DataModelForeignKeyProperties.Count(); i++)
            {
                sbCommandText.Append(" ,");
                sbCommandText.Append(
                    DataModelForeignKeyProperties[i].ForeignDataModelFactory
                    .GetColumnNamesAsCommandText(DataModelForeignKeyProperties[i].GetJoinName()));
            }

            return(sbCommandText.ToString());
        }
コード例 #2
0
        public DataUsersFactory(DataCountriesFactory dataCountriesFactory) : base(DataUsers.TABLE_NAME)
        {
            FKCountryProperties = new DataModel.DataModeForeignKey(dataCountriesFactory, true);

            DataModelForeignKeyProperties.Clear();
            DataModelForeignKeyProperties.Add(FKCountryProperties);
        }
コード例 #3
0
        /*
         * protected virtual string GetCommandText_BasicSelectCommon()
         * {
         *  var sbQuery = new StringBuilder();
         *  var sbQueryJoin = new StringBuilder();
         *
         *  sbQuery.Append($"SELECT {GetColumnNamesAsCommandText()}");
         *
         *  for(int i = 0; i < DataModelForeignKeyProperties.Count(); i++)
         *  {
         *      sbQueryJoin.AppendLine($" {GetForeignKeyCommandText(DataModelForeignKeyProperties[i])}");
         *  }
         *
         *  sbQuery.AppendFormat(" FROM {0}", TableName);
         *  sbQuery.Append(sbQueryJoin.ToString());
         *  return sbQuery.ToString();
         * }
         */

        public virtual string GetCommandText_Select(List <DataModel.IDataModelColumn> parameters = null,
                                                    int pageSize = 0, int startIndex = 0,
                                                    List <DataModel.IDataModelColumnProperties> orderby = null)
        {
            var sbQuery  = new StringBuilder();
            var sbSelect = new StringBuilder();


            sbSelect.AppendFormat("SELECT {0}", DataModelColumnProperties[0].ColumnName);
            // Iterate the Factory's Columns(exluding foreign keys) to add them to select query
            for (int i = 1; i < DataModelColumnProperties.Count; i++)
            {
                sbSelect.AppendFormat(", {0}", DataModelColumnProperties[i].ColumnName);
            }

            sbQuery.AppendFormat(" FROM {0}", TableName);

            // Iterate the Factory's Foreign Keys to add them to select query and to join to their
            // respective tables
            for (int i = 0; i < DataModelForeignKeyProperties.Count(); i++)
            {
                if (DataModelForeignKeyProperties[i].PerformJoin)
                {
                    sbSelect.Append(DataModelForeignKeyProperties[i].GetColumnsForSelectQuery());
                    sbQuery.Append($" JOIN {DataModelForeignKeyProperties[i].GetJoinName()}");
                    sbQuery.Append($" ON {DataModelForeignKeyProperties[i].ColumnName} = {DataModelForeignKeyProperties[i].GetForeignTablePK()}");
                }
                else
                {
                    sbSelect.Append($", {DataModelForeignKeyProperties[i].ColumnName}");
                }
            }

            // If parameters have been provided include WHERE to the SELECT query
            if (parameters != null && parameters.Count > 0)
            {
                sbQuery.AppendLine(" WHERE");
                // Iterate all parameters to add to the WHERE query
                for (int pi = 0; pi < parameters.Count; pi++)
                {
                    if (pi > 0)
                    {
                        sbQuery.Append(" AND");
                    }
                    sbQuery.AppendLine(string.Format(" {0} = @{0}", parameters[pi].GetColumnProperties().ColumnName));
                }
            }

            sbQuery.AppendLine(" ORDER BY");

            // Add Order By
            if (orderby != null)
            {
                for (int i = 0; i < orderby.Count; i++)
                {
                    if (i > 0)
                    {
                        sbQuery.Append(", ");
                    }
                    sbQuery.Append($"{orderby[i].ColumnName}");
                }
            }
            else
            {
                // If Order By not provided, order by primary key
                sbQuery.AppendLine($"{Get_PrimaryKeyProperties().ColumnName}");
            }

            if (pageSize > 0)
            {
                sbQuery.AppendLine(string.Format(" LIMIT {0}, {1}", pageSize, startIndex));
            }

            return($"{sbSelect.ToString()} {sbQuery.ToString()}");
        }