X-Git-Url: https://git.enpas.org/?a=blobdiff_plain;f=util%2Fsql.lua;h=2d5e17743a6a90f448499804330741924b5caad5;hb=b244d865c10f013995fa3615cd9ddc019c352d55;hp=f934bbdf91b83e763b20e1a64ed57f3ea4cfca19;hpb=f0bfbf31b1268b391de20f44cef150323a0b724b;p=prosody.git

diff --git a/util/sql.lua b/util/sql.lua
index f934bbdf..2d5e1774 100644
--- a/util/sql.lua
+++ b/util/sql.lua
@@ -13,7 +13,7 @@ local DBI = require "DBI";
 DBI.Drivers();
 local build_url = require "socket.url".build;
 
-module("sql")
+local _ENV = nil;
 
 local column_mt = {};
 local table_mt = {};
@@ -21,17 +21,17 @@ local query_mt = {};
 --local op_mt = {};
 local index_mt = {};
 
-function is_column(x) return getmetatable(x)==column_mt; end
-function is_index(x) return getmetatable(x)==index_mt; end
-function is_table(x) return getmetatable(x)==table_mt; end
-function is_query(x) return getmetatable(x)==query_mt; end
-function Integer(n) return "Integer()" end
-function String(n) return "String()" end
+local function is_column(x) return getmetatable(x)==column_mt; end
+local function is_index(x) return getmetatable(x)==index_mt; end
+local function is_table(x) return getmetatable(x)==table_mt; end
+local function is_query(x) return getmetatable(x)==query_mt; end
+local function Integer(n) return "Integer()" end
+local function String(n) return "String()" end
 
-function Column(definition)
+local function Column(definition)
 	return setmetatable(definition, column_mt);
 end
-function Table(definition)
+local function Table(definition)
 	local c = {}
 	for i,col in ipairs(definition) do
 		if is_column(col) then
@@ -42,7 +42,7 @@ function Table(definition)
 	end
 	return setmetatable({ __table__ = definition, c = c, name = definition.name }, table_mt);
 end
-function Index(definition)
+local function Index(definition)
 	return setmetatable(definition, index_mt);
 end
 
@@ -180,6 +180,7 @@ function engine:_transaction(func, ...)
 	--assert(not self.__transaction, "Recursive transactions not allowed");
 	local args, n_args = {...}, select("#", ...);
 	local function f() return func(unpack(args, 1, n_args)); end
+	log("debug", "SQL transaction begin [%s]", tostring(func));
 	self.__transaction = true;
 	local success, a, b, c = xpcall(f, debug_traceback);
 	self.__transaction = nil;
@@ -285,7 +286,7 @@ function engine:set_encoding() -- to UTF-8
 	if not ok then
 		return ok, err;
 	end
-	
+
 	if driver == "MySQL" then
 		local ok, actual_charset = self:transaction(function ()
 			return self:select"SHOW SESSION VARIABLES LIKE 'character_set_client'";
@@ -297,12 +298,12 @@ function engine:set_encoding() -- to UTF-8
 			end
 		end
 	end
-	
+
 	return true;
 end
 local engine_mt = { __index = engine };
 
-function db2uri(params)
+local function db2uri(params)
 	return build_url{
 		scheme = params.driver,
 		user = params.username,
@@ -313,8 +314,20 @@ function db2uri(params)
 	};
 end
 
-function create_engine(self, params, onconnect)
+local function create_engine(self, params, onconnect)
 	return setmetatable({ url = db2uri(params), params = params, onconnect = onconnect }, engine_mt);
 end
 
-return _M;
+return {
+	is_column = is_column;
+	is_index = is_index;
+	is_table = is_table;
+	is_query = is_query;
+	Integer = Integer;
+	String = String;
+	Column = Column;
+	Table = Table;
+	Index = Index;
+	create_engine = create_engine;
+	db2uri = db2uri;
+};