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LibSQL: Add a helper to convert a SQL::Value to a UnixDateTime

Browse source 
Support for constructing a Value from a UnixDateTime was added in commit
effcd080ca.

That constructor just stores the value as the number of milliseconds
since epoch. There's no way for outside users to know this, so this adds
a helper to retrieve the value as a UnixDateTime and let SQL::Value be
the source of truth for how the value is encoded/decoded.
This commit is contained in:
Timothy Flynn 2024-01-09 20:45:04 -05:00 committed by Andreas Kling
parent 1205d39fc3
commit cd0e07f6a4
3 changed files with 44 additions and 0 deletions
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34
Tests/LibSQL/TestSqlValueAndTuple.cpp
View file

@ -7,6 +7,7 @@
#include <unistd.h>
#include <AK/Time.h>
#include <LibSQL/Meta.h>
#include <LibSQL/Row.h>
#include <LibSQL/Tuple.h>
@ -471,6 +472,39 @@ TEST_CASE(serialize_boolean_value)
EXPECT_EQ(v, v2);
}
TEST_CASE(unix_date_time_value)
{
auto now = UnixDateTime::now();
{
SQL::Value value(now);
EXPECT_EQ(value.type(), SQL::SQLType::Integer);
auto result = value.to_unix_date_time();
VERIFY(result.has_value());
EXPECT_EQ(result->milliseconds_since_epoch(), now.milliseconds_since_epoch());
}
{
auto now_plus_10s = now + Duration::from_seconds(10);
SQL::Value value(now_plus_10s);
EXPECT_EQ(value.type(), SQL::SQLType::Integer);
auto result = value.to_unix_date_time();
VERIFY(result.has_value());
EXPECT_EQ(result->milliseconds_since_epoch(), now_plus_10s.milliseconds_since_epoch());
}
{
auto now_minus_10s = now - Duration::from_seconds(10);
SQL::Value value(now_minus_10s);
EXPECT_EQ(value.type(), SQL::SQLType::Integer);
auto result = value.to_unix_date_time();
VERIFY(result.has_value());
EXPECT_EQ(result->milliseconds_since_epoch(), now_minus_10s.milliseconds_since_epoch());
}
}
TEST_CASE(tuple_value)
{
NonnullRefPtr<SQL::TupleDescriptor> descriptor = adopt_ref(*new SQL::TupleDescriptor);

9
Userland/Libraries/LibSQL/Value.cpp
View file

@ -277,6 +277,15 @@ Optional<bool> Value::to_bool() const
});
}
Optional<UnixDateTime> Value::to_unix_date_time() const
{
auto time = to_int<i64>();
if (!time.has_value())
return {};
return UnixDateTime::from_milliseconds_since_epoch(*time);
}
Optional<Vector<Value>> Value::to_vector() const
{
if (is_null() || (type() != SQLType::Tuple))

1
Userland/Libraries/LibSQL/Value.h
View file

@ -77,6 +77,7 @@ public:
[[nodiscard]] ByteString to_byte_string() const;
[[nodiscard]] Optional<double> to_double() const;
[[nodiscard]] Optional<bool> to_bool() const;
[[nodiscard]] Optional<UnixDateTime> to_unix_date_time() const;
[[nodiscard]] Optional<Vector<Value>> to_vector() const;
template<Integer T>