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-rw-r--r--util/sql.lua52
1 files changed, 47 insertions, 5 deletions
diff --git a/util/sql.lua b/util/sql.lua
index f360d6d0..5a1dda5d 100644
--- a/util/sql.lua
+++ b/util/sql.lua
@@ -45,7 +45,7 @@ function String(n) return "String()" end
};
local functions = {
-
+
};
local cmap = {
@@ -177,8 +177,8 @@ function engine:execute(sql, ...)
end
local result_mt = { __index = {
- affected = function(self) return self.__affected; end;
- rowcount = function(self) return self.__rowcount; end;
+ affected = function(self) return self.__stmt:affected(); end;
+ rowcount = function(self) return self.__stmt:rowcount(); end;
} };
function engine:execute_query(sql, ...)
@@ -200,7 +200,7 @@ function engine:execute_update(sql, ...)
prepared[sql] = stmt;
end
assert(stmt:execute(...));
- return setmetatable({ __affected = stmt:affected(), __rowcount = stmt:rowcount() }, result_mt);
+ return setmetatable({ __stmt = stmt }, result_mt);
end
engine.insert = engine.execute_update;
engine.select = engine.execute_query;
@@ -251,19 +251,39 @@ function engine:_create_index(index)
elseif self.params.driver == "MySQL" then
sql = sql:gsub("`([,)])", "`(20)%1");
end
+ if index.unique then
+ sql = sql:gsub("^CREATE", "CREATE UNIQUE");
+ end
--print(sql);
return self:execute(sql);
end
function engine:_create_table(table)
local sql = "CREATE TABLE `"..table.name.."` (";
for i,col in ipairs(table.c) do
- sql = sql.."`"..col.name.."` "..col.type;
+ local col_type = col.type;
+ if col_type == "MEDIUMTEXT" and self.params.driver ~= "MySQL" then
+ col_type = "TEXT"; -- MEDIUMTEXT is MySQL-specific
+ end
+ if col.auto_increment == true and self.params.driver == "PostgreSQL" then
+ col_type = "BIGSERIAL";
+ end
+ sql = sql.."`"..col.name.."` "..col_type;
if col.nullable == false then sql = sql.." NOT NULL"; end
+ if col.primary_key == true then sql = sql.." PRIMARY KEY"; end
+ if col.auto_increment == true then
+ if self.params.driver == "MySQL" then
+ sql = sql.." AUTO_INCREMENT";
+ elseif self.params.driver == "SQLite3" then
+ sql = sql.." AUTOINCREMENT";
+ end
+ end
if i ~= #table.c then sql = sql..", "; end
end
sql = sql.. ");"
if self.params.driver == "PostgreSQL" then
sql = sql:gsub("`", "\"");
+ elseif self.params.driver == "MySQL" then
+ sql = sql:gsub(";$", " CHARACTER SET 'utf8' COLLATE 'utf8_bin';");
end
local success,err = self:execute(sql);
if not success then return success,err; end
@@ -274,6 +294,28 @@ function engine:_create_table(table)
end
return success;
end
+function engine:set_encoding() -- to UTF-8
+ local driver = self.params.driver;
+ if driver == "SQLite3" then
+ return self:transaction(function()
+ if self:select"PRAGMA encoding;"()[1] == "UTF-8" then
+ self.charset = "utf8";
+ end
+ end);
+ end
+ local set_names_query = "SET NAMES '%s';"
+ local charset = "utf8";
+ if driver == "MySQL" then
+ set_names_query = set_names_query:gsub(";$", " COLLATE 'utf8_bin';");
+ local ok, charsets = self:transaction(function()
+ return self:select"SELECT `CHARACTER_SET_NAME` FROM `information_schema`.`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
+ self.charset = charset;
+ return self:transaction(function() return self:execute(set_names_query:format(charset)); end);
+end
local engine_mt = { __index = engine };
local function db2uri(params)