/// <summary>
/// Compile a sqlBuilder into a query which can be executed multiple times
/// </summary>
/// <param name="sqlBuilder">The builder with all properties populated</param>
/// <param name="parameters">Any constant parameters in the statement</param>
/// <param name="queryParseType">Define the way results are to be parsed</param>
public static CompiledQuery <TArgs, TResult> Compile <TArgs, TResult> (
this ISqlString sqlBuilder,
ISqlSelectStatement statement,
IEnumerable <object> parameters,
ISqlSyntax sqlSyntax,
QueryParseType queryParseType,
bool requiresSimpleValueUnwrap)
{
var sql = ToSql(sqlBuilder);
var selectColumns = statement.SelectColumns.Select(Alias).ToArray();
var resultType = requiresSimpleValueUnwrap
? ReflectionUtils.CreatePropMapValue(typeof(TResult))
: typeof(TResult);
var propertyGraph = statement.BuildObjetPropertyGraph(resultType, queryParseType);
return(new CompiledQuery <TArgs, TResult>(sql, parameters.ToArray(), selectColumns, propertyGraph, sqlSyntax, requiresSimpleValueUnwrap));
}
/// <summary>
/// Build an object property graph from a sql builder
/// </summary>
/// <param name="sqlBuilder">The builder with all properties populated</param>
/// <param name="queryParseType">Define the way results are to be parsed</param>
public static RootObjectPropertyGraph BuildObjetPropertyGraph(this ISqlSelectStatement sqlBuilder, Type objectType, QueryParseType queryParseType)
{
// row id's for each mapped table
var mappedTableProperties = sqlBuilder.MappedPropertiesToPrimaryKeys
.Select(GetMappedTable);
// map each column to a chain of row id column numbers
var columnWithPrimaryKeys = sqlBuilder
.SelectColumns
.Select(GetMappedColumn);
return(ObjectPropertyGraphBuilder.Build(
objectType,
sqlBuilder.GetPrimaryTableKeyColumnIndexes().ToArray(),
mappedTableProperties,
columnWithPrimaryKeys,
queryParseType));
(string name, int[] primaryKeyColumnMap) GetMappedTable((string columnGroupPrefix, ICompositeKey key) map) => (
map.columnGroupPrefix,
sqlBuilder.GetRowNumberColumnIndexes(map.key, map.key.Table).ToArray());
(string name, int[] primaryKeyColumnMap, Type dataCellType, ConstructorInfo[] isConstructorArg) GetMappedColumn(ISelectColumn column) => (
column.Alias,
sqlBuilder
.GetRowNumberColumnIndexes(
column.Alias,
TablePrecedenceOrderer.GetSingleMappingContext(column))
.ToArray(),
column.DataType,
column.ArgConstructors);
}
