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authorlouiz’ <louiz@louiz.org>2018-04-10 23:33:59 +0200
committerlouiz’ <louiz@louiz.org>2018-04-11 00:25:18 +0200
commit857c7d3972a03cbeebf730d99b924d3710dee6a0 (patch)
tree5bf1ed66ba7ddda3f16a470115cf364a8c7a10cb /src/database/datetime_writer.hpp
parent0cd848e532c8c60ed4f3a5d1e6a3850929f2765b (diff)
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Use a different Date data type
PLEASE backup your database before testing this commit, and report any migration issue. In postgresql, we use timestamp with timezone. In sqlite3 we use REAL (the date is expressed as julianday) This requires a migration of the muclogline_ table: In postgresql it’s pretty simple, we convert all the integer into timestamps With sqlite3, we actually rename the table, create the new one with the correct type, then copy everything to the new table, with a conversion function for the Date_ column, and then we delete the old table. fix #3343
Diffstat (limited to 'src/database/datetime_writer.hpp')
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diff --git a/src/database/datetime_writer.hpp b/src/database/datetime_writer.hpp
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+++ b/src/database/datetime_writer.hpp
@@ -0,0 +1,32 @@
+#pragma once
+
+#include <utils/datetime.hpp>
+#include <database/engine.hpp>
+
+#include <logger/logger.hpp>
+#include <database/postgresql_engine.hpp>
+#include <database/sqlite3_engine.hpp>
+
+class DatetimeWriter
+{
+public:
+ DatetimeWriter(DateTime datetime, const DatabaseEngine& engine):
+ datetime(datetime),
+ engine(engine)
+ {}
+
+ long double get_value() const
+ {
+ const long double epoch_duration = this->datetime.epoch().count();
+ const long double epoch_seconds = epoch_duration / std::chrono::system_clock::period::den;
+ return this->engine.epoch_to_floating_value(epoch_seconds);
+ }
+ std::string escape_param_number(int value) const
+ {
+ return this->engine.escape_param_number(value);
+ }
+
+private:
+ const DateTime datetime;
+ const DatabaseEngine& engine;
+};