From e20e010643e56b1f1a2a86146d09db84b170d1d6 Mon Sep 17 00:00:00 2001 From: Kim Alvefur Date: Tue, 29 Oct 2013 11:42:55 +0100 Subject: util.sql: Find out if MySQL supports utf8mb4 and use that --- util/sql.lua | 17 +++++++++++------ 1 file changed, 11 insertions(+), 6 deletions(-) (limited to 'util') diff --git a/util/sql.lua b/util/sql.lua index cab1bcec..4e63bed7 100644 --- a/util/sql.lua +++ b/util/sql.lua @@ -291,14 +291,19 @@ function engine:_create_table(table) end function engine:set_encoding() -- to UTF-8 if self.params.driver == "SQLite3" then return end - local set_names_query = "SET NAMES 'utf8';"; - if self.params.driver == "MySQL" then + local driver = self.params.driver; + local set_names_query = "SET NAMES '%s';" + local charset = "utf8"; + if driver == "MySQL" then set_names_query = set_names_query:gsub(";$", " COLLATE 'utf8_bin';"); + local ok, charsets = self:transaction(function() + return self:select"SELECT `CHARACTER_SET_NAME` FROM `CHARACTER_SETS` WHERE `CHARACTER_SET_NAME` LIKE 'utf8%' ORDER BY MAXLEN DESC LIMIT 1;"; + end); + local row = ok and charsets(); + charset = row and row[1] or charset; end - local success,err = engine:transaction(function() return engine:execute(set_names_query); end); - if not success then - log("error", "Failed to set database connection encoding to UTF8: %s", err); - end + self.charset = charset; + return self:transaction(function() return engine:execute(set_names_query:format(charset)); end); end local engine_mt = { __index = engine }; -- cgit v1.2.3