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#include <Common/SettingsChanges.h>
namespace DB
{
namespace
{
SettingChange * find(SettingsChanges & changes, std::string_view name)
{
auto it = std::find_if(changes.begin(), changes.end(), [&name](const SettingChange & change) { return change.name == name; });
if (it == changes.end())
return nullptr;
return &*it;
}
const SettingChange * find(const SettingsChanges & changes, std::string_view name)
{
auto it = std::find_if(changes.begin(), changes.end(), [&name](const SettingChange & change) { return change.name == name; });
if (it == changes.end())
return nullptr;
return &*it;
}
}
bool SettingsChanges::tryGet(std::string_view name, Field & out_value) const
{
const auto * change = find(*this, name);
if (!change)
return false;
out_value = change->value;
return true;
}
const Field * SettingsChanges::tryGet(std::string_view name) const
{
const auto * change = find(*this, name);
if (!change)
return nullptr;
return &change->value;
}
Field * SettingsChanges::tryGet(std::string_view name)
{
auto * change = find(*this, name);
if (!change)
return nullptr;
return &change->value;
}
bool SettingsChanges::insertSetting(std::string_view name, const Field & value)
{
auto it = std::find_if(begin(), end(), [&name](const SettingChange & change) { return change.name == name; });
if (it != end())
return false;
emplace_back(name, value);
return true;
}
void SettingsChanges::setSetting(std::string_view name, const Field & value)
{
if (auto * setting_value = tryGet(name))
*setting_value = value;
else
insertSetting(name, value);
}
bool SettingsChanges::removeSetting(std::string_view name)
{
auto it = std::find_if(begin(), end(), [&name](const SettingChange & change) { return change.name == name; });
if (it == end())
return false;
erase(it);
return true;
}
}
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