/// <summary>
/// Create a <see cref="SqlStatement"/> that contains all the needed information to execute the query against a SQL Server database and load and hydrate the entities
/// IMPORTANT: Calling this method will keep a permanent cache of some parts of the result, therefore if the arguments need to change after
/// that, a new <see cref="QueryInternal"/> must be created
/// </summary>
public SqlStatement PrepareStatement(
Func <Type, string> sources,
SqlStatementVariables vars,
SqlStatementParameters ps,
int userId,
DateTime?userToday)
{
// (1) Prepare the JOIN's clause
var joinTrie = PrepareJoin();
var joinSql = joinTrie.GetSql(sources, FromSql);
// Compilation context
var today = userToday ?? DateTime.Today;
var now = DateTimeOffset.Now;
var ctx = new QxCompilationContext(joinTrie, sources, vars, ps, today, now, userId);
// (2) Prepare the SELECT clause
SqlSelectClause selectClause = PrepareSelect(joinTrie);
var selectSql = selectClause.ToSql(IsAncestorExpand);
// (3) Prepare the inner join with the principal query (if any)
string principalQuerySql = PreparePrincipalQuerySql(ctx);
// (4) Prepare the WHERE clause
string whereSql = PrepareWhereSql(ctx);
// (5) Prepare the ORDERBY clause
string orderbySql = PrepareOrderBySql(ctx);
// (6) Prepare the OFFSET and FETCH clauses
string offsetFetchSql = PrepareOffsetFetch();
// (7) Finally put together the final SQL statement and return it
string sql = QueryTools.CombineSql(
selectSql: selectSql,
joinSql: joinSql,
principalQuerySql: principalQuerySql,
whereSql: whereSql,
orderbySql: orderbySql,
offsetFetchSql: offsetFetchSql,
groupbySql: null,
havingSql: null,
selectFromTempSql: null
);
// (8) Return the result
return(new SqlStatement
{
Sql = sql,
ResultDescriptor = ResultDescriptor,
ColumnMap = selectClause.GetColumnMap(),
Query = this,
});
}
// Functionality
/// <summary>
/// Create a <see cref="SqlStatement"/> that contains all the needed information to execute the query against a SQL Server database and load and hydrate the entities
/// IMPORTANT: Calling this method will keep a permanent cache of some parts of the result, therefore if the arguments need to change after
/// that, a new <see cref="QueryInternal"/> must be created
/// </summary>
public SqlStatement PrepareStatement(
Func <Type, string> sources,
SqlStatementParameters ps,
int userId,
DateTime?userToday)
{
// (1) Prepare the JOIN's clause
var joinTree = PrepareJoin();
var joinSql = joinTree.GetSql(sources, FromSql);
// (2) Prepare the SELECT clause
SqlSelectClause selectClause = PrepareSelect(joinTree);
var selectSql = selectClause.ToSql(IsAncestorExpand);
// (3) Prepare the inner join with the principal query (if any)
string principalQuerySql = PreparePrincipalQuery(sources, ps, userId, userToday);
// (4) Prepare the WHERE clause
string whereSql = PrepareWhere(sources, joinTree, ps, userId, userToday);
// (5) Prepare the ORDERBY clause
string orderbySql = PrepareOrderBy(joinTree);
// (6) Prepare the OFFSET and FETCH clauses
string offsetFetchSql = PrepareOffsetFetch();
// (7) Finally put together the final SQL statement and return it
string sql = QueryTools.CombineSql(
selectSql: selectSql,
joinSql: joinSql,
principalQuerySql: principalQuerySql,
whereSql: whereSql,
orderbySql: orderbySql,
offsetFetchSql: offsetFetchSql,
groupbySql: null
);
// (8) Return the result
return(new SqlStatement
{
Sql = sql,
ResultType = ResultType,
ColumnMap = selectClause.GetColumnMap(),
Query = this,
});
}