private static void writeQueryMethod(
TextWriter writer, IDatabase database, Query query, QueryPostSelectFromClause postSelectFromClause, int?commandTimeout)
{
// header
CodeGenerationStatics.AddSummaryDocComment(writer, "Queries the database and returns the full results collection immediately.");
writer.WriteLine(
"public static IEnumerable<Row> GetRows" + postSelectFromClause.name + "( " +
DataAccessStatics.GetMethodParamsFromCommandText(info, query.selectFromClause + " " + postSelectFromClause.Value) + " ) {");
// body
var namedParamList = DataAccessStatics.GetNamedParamList(info, query.selectFromClause + " " + postSelectFromClause.Value);
var getResultSetFirstArg = namedParamList.Any() ? "new[] { " + StringTools.ConcatenateWithDelimiter(", ", namedParamList.ToArray()) + " }, " : "";
writer.WriteLine("return Cache.Current." + getQueryCacheName(query, postSelectFromClause, false) + ".GetResultSet( " + getResultSetFirstArg + "() => {");
writer.WriteLine($"var cmd = {DataAccessStatics.DataAccessStateCurrentDatabaseConnectionCreateCommandExpression( commandTimeout )};");
writer.WriteLine("cmd.CommandText = selectFromClause");
if (!postSelectFromClause.Value.IsNullOrWhiteSpace())
{
writer.Write($@"+ @""{postSelectFromClause.Value}""");
}
writer.Write(";");
DataAccessStatics.WriteAddParamBlockFromCommandText(writer, "cmd", info, query.selectFromClause + " " + postSelectFromClause.Value, database);
writer.WriteLine("var results = new List<Row>();");
writer.WriteLine(
DataAccessStatics.DataAccessStateCurrentDatabaseConnectionExpression +
".ExecuteReaderCommand( cmd, r => { while( r.Read() ) results.Add( new Row( new BasicRow( r ) ) ); } );");
// Update single-row caches.
writer.WriteLine("foreach( var i in results )");
writer.WriteLine("updateSingleRowCaches( i );");
writer.WriteLine("return results;");
writer.WriteLine("} );");
writer.WriteLine("}");
}
private static string getQueryCacheType(Query query, QueryPostSelectFromClause postSelectFromClause) =>
DataAccessStatics.GetNamedParamList(info, query.selectFromClause + " " + postSelectFromClause.Value).Any()
? "QueryRetrievalQueryCache<Row>"
: "ParameterlessQueryCache<Row>";
private static string getQueryCacheName(Query query, QueryPostSelectFromClause postSelectFromClause, bool getFieldName) => (getFieldName ? "rows" : "Rows") + postSelectFromClause.name + (DataAccessStatics.GetNamedParamList(info, query.selectFromClause + " " + postSelectFromClause.Value).Any() ? "Queries" : "Query");
