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api to check if object has been deleted

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This commit is contained in:
Ari Lazier 2016-04-19 14:41:33 -07:00
parent 21a4d5e590
commit 4d8d1d96e4
1 changed files with 22 additions and 0 deletions
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22
src/object_accessor.hpp
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@ -47,6 +47,8 @@ namespace realm {
SharedRealm realm() { return m_realm; }
const ObjectSchema &get_object_schema() { return *m_object_schema; }
Row row() { return m_row; }
bool is_valid() { return m_row.is_attached(); }
private:
SharedRealm m_realm;
@ -57,6 +59,8 @@ namespace realm {
inline void set_property_value_impl(ContextType ctx, const Property &property, ValueType value, bool try_update);
template<typename ValueType, typename ContextType>
inline ValueType get_property_value_impl(ContextType ctx, const Property &property);
inline void verify_attached();
};
//
@ -109,6 +113,13 @@ namespace realm {
static Mixed to_mixed(ContextType ctx, ValueType &val) { throw std::runtime_error("'Any' type is unsupported"); }
};
class InvalidatedObjectException : public std::runtime_error
{
public:
InvalidatedObjectException(const std::string object_type, const std::string message) : std::runtime_error(message), object_type(object_type) {}
const std::string object_type;
};
class InvalidPropertyException : public std::runtime_error
{
public:
@ -137,6 +148,8 @@ namespace realm {
template <typename ValueType, typename ContextType>
inline void Object::set_property_value(ContextType ctx, std::string prop_name, ValueType value, bool try_update)
{
verify_attached();
const Property *prop = m_object_schema->property_for_name(prop_name);
if (!prop) {
throw InvalidPropertyException(m_object_schema->name, prop_name,
@ -148,6 +161,8 @@ namespace realm {
template <typename ValueType, typename ContextType>
inline ValueType Object::get_property_value(ContextType ctx, std::string prop_name)
{
verify_attached();
const Property *prop = m_object_schema->property_for_name(prop_name);
if (!prop) {
throw InvalidPropertyException(m_object_schema->name, prop_name,
@ -324,6 +339,13 @@ namespace realm {
}
return object;
}
inline void Object::verify_attached() {
if (!m_row.is_attached()) {
throw InvalidatedObjectException("Accessing object of type " + m_object_schema->name + " which has been deleted",
m_object_schema->name);
}
}
//
// List implementation