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util/sql.lua

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util/sql.lua @ 6777:5de6b93d0190

util.*: Remove use of module() function, make all module functions local and return them in a table at the end
author Kim Alvefur <zash@zash.se>
date Sat, 21 Feb 2015 10:36:37 +0100
parent 6771:60957dd5b41b
child 6805:c37633feaece
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1
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2 local setmetatable, getmetatable = setmetatable, getmetatable;
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3 local ipairs, unpack, select = ipairs, unpack, select;
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4 local tonumber, tostring = tonumber, tostring;
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5 local assert, xpcall, debug_traceback = assert, xpcall, debug.traceback;
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6 local t_concat = table.concat;
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7 local s_char = string.char;
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8 local log = require "util.logger".init("sql");
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10 local DBI = require "DBI";
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11 -- This loads all available drivers while globals are unlocked
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12 -- LuaDBI should be fixed to not set globals.
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13 DBI.Drivers();
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14 local build_url = require "socket.url".build;
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16 local _ENV = nil;
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18 local column_mt = {};
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19 local table_mt = {};
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20 local query_mt = {};
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21 --local op_mt = {};
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22 local index_mt = {};
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24 local function is_column(x) return getmetatable(x)==column_mt; end
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25 local function is_index(x) return getmetatable(x)==index_mt; end
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26 local function is_table(x) return getmetatable(x)==table_mt; end
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27 local function is_query(x) return getmetatable(x)==query_mt; end
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28 local function Integer(n) return "Integer()" end
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29 local function String(n) return "String()" end
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31 local function Column(definition)
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32 return setmetatable(definition, column_mt);
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33 end
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34 local function Table(definition)
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35 local c = {}
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36 for i,col in ipairs(definition) do
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37 if is_column(col) then
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38 c[i], c[col.name] = col, col;
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39 elseif is_index(col) then
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40 col.table = definition.name;
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41 end
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42 end
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43 return setmetatable({ __table__ = definition, c = c, name = definition.name }, table_mt);
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44 end
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45 local function Index(definition)
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46 return setmetatable(definition, index_mt);
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47 end
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49 function table_mt:__tostring()
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50 local s = { 'name="'..self.__table__.name..'"' }
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51 for i,col in ipairs(self.__table__) do
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52 s[#s+1] = tostring(col);
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53 end
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54 return 'Table{ '..t_concat(s, ", ")..' }'
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55 end
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56 table_mt.__index = {};
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57 function table_mt.__index:create(engine)
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58 return engine:_create_table(self);
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59 end
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60 function table_mt:__call(...)
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61 -- TODO
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62 end
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63 function column_mt:__tostring()
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64 return 'Column{ name="'..self.name..'", type="'..self.type..'" }'
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65 end
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66 function index_mt:__tostring()
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67 local s = 'Index{ name="'..self.name..'"';
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68 for i=1,#self do s = s..', "'..self[i]:gsub("[\\\"]", "\\%1")..'"'; end
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69 return s..' }';
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70 -- return 'Index{ name="'..self.name..'", type="'..self.type..'" }'
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71 end
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72
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73 local function urldecode(s) return s and (s:gsub("%%(%x%x)", function (c) return s_char(tonumber(c,16)); end)); end
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74 local function parse_url(url)
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75 local scheme, secondpart, database = url:match("^([%w%+]+)://([^/]*)/?(.*)");
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76 assert(scheme, "Invalid URL format");
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77 local username, password, host, port;
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78 local authpart, hostpart = secondpart:match("([^@]+)@([^@+])");
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79 if not authpart then hostpart = secondpart; end
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80 if authpart then
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81 username, password = authpart:match("([^:]*):(.*)");
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82 username = username or authpart;
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83 password = password and urldecode(password);
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84 end
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85 if hostpart then
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86 host, port = hostpart:match("([^:]*):(.*)");
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87 host = host or hostpart;
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88 port = port and assert(tonumber(port), "Invalid URL format");
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89 end
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90 return {
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91 scheme = scheme:lower();
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92 username = username; password = password;
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93 host = host; port = port;
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94 database = #database > 0 and database or nil;
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95 };
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96 end
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97
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98 local engine = {};
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99 function engine:connect()
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100 if self.conn then return true; end
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101
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102 local params = self.params;
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103 assert(params.driver, "no driver")
6765
0cbb09afa5c3 util.sql: Fix log level of debug message
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104 log("debug", "Connecting to [%s] %s...", params.driver, params.database);
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105 local dbh, err = DBI.Connect(
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106 params.driver, params.database,
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107 params.username, params.password,
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108 params.host, params.port
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109 );
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110 if not dbh then return nil, err; end
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111 dbh:autocommit(false); -- don't commit automatically
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112 self.conn = dbh;
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113 self.prepared = {};
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114 local ok, err = self:set_encoding();
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115 if not ok then
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116 return ok, err;
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117 end
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118 local ok, err = self:onconnect();
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119 if ok == false then
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120 return ok, err;
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121 end
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122 return true;
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123 end
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124 function engine:onconnect()
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125 -- Override from create_engine()
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126 end
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127 function engine:execute(sql, ...)
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128 local success, err = self:connect();
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129 if not success then return success, err; end
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130 local prepared = self.prepared;
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131
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132 local stmt = prepared[sql];
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133 if not stmt then
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134 local err;
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135 stmt, err = self.conn:prepare(sql);
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136 if not stmt then return stmt, err; end
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137 prepared[sql] = stmt;
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138 end
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139
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140 local success, err = stmt:execute(...);
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141 if not success then return success, err; end
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142 return stmt;
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143 end
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144
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145 local result_mt = { __index = {
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146 affected = function(self) return self.__stmt:affected(); end;
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147 rowcount = function(self) return self.__stmt:rowcount(); end;
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148 } };
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149
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150 function engine:execute_query(sql, ...)
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151 if self.params.driver == "PostgreSQL" then
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152 sql = sql:gsub("`", "\"");
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153 end
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154 local stmt = assert(self.conn:prepare(sql));
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155 assert(stmt:execute(...));
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156 return stmt:rows();
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157 end
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158 function engine:execute_update(sql, ...)
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159 if self.params.driver == "PostgreSQL" then
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160 sql = sql:gsub("`", "\"");
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161 end
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162 local prepared = self.prepared;
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163 local stmt = prepared[sql];
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164 if not stmt then
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165 stmt = assert(self.conn:prepare(sql));
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166 prepared[sql] = stmt;
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167 end
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168 assert(stmt:execute(...));
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169 return setmetatable({ __stmt = stmt }, result_mt);
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170 end
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171 engine.insert = engine.execute_update;
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172 engine.select = engine.execute_query;
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173 engine.delete = engine.execute_update;
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174 engine.update = engine.execute_update;
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175 function engine:_transaction(func, ...)
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176 if not self.conn then
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177 local ok, err = self:connect();
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178 if not ok then return ok, err; end
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179 end
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180 --assert(not self.__transaction, "Recursive transactions not allowed");
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181 local args, n_args = {...}, select("#", ...);
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182 local function f() return func(unpack(args, 1, n_args)); end
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183 self.__transaction = true;
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184 local success, a, b, c = xpcall(f, debug_traceback);
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185 self.__transaction = nil;
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186 if success then
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187 log("debug", "SQL transaction success [%s]", tostring(func));
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188 local ok, err = self.conn:commit();
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189 if not ok then return ok, err; end -- commit failed
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190 return success, a, b, c;
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191 else
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192 log("debug", "SQL transaction failure [%s]: %s", tostring(func), a);
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193 if self.conn then self.conn:rollback(); end
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194 return success, a;
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195 end
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196 end
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197 function engine:transaction(...)
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198 local ok, ret = self:_transaction(...);
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199 if not ok then
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200 local conn = self.conn;
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201 if not conn or not conn:ping() then
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202 self.conn = nil;
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203 ok, ret = self:_transaction(...);
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204 end
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205 end
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206 return ok, ret;
5494
9916f0a2d178 mod_storage_sql2 (temporary name), sql.lib, util.sql: New SQL API supporting cross-module connection sharing, transactions and Things - a work in progress
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
207 end
9916f0a2d178 mod_storage_sql2 (temporary name), sql.lib, util.sql: New SQL API supporting cross-module connection sharing, transactions and Things - a work in progress
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
208 function engine:_create_index(index)
9916f0a2d178 mod_storage_sql2 (temporary name), sql.lib, util.sql: New SQL API supporting cross-module connection sharing, transactions and Things - a work in progress
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
209 local sql = "CREATE INDEX `"..index.name.."` ON `"..index.table.."` (";
9916f0a2d178 mod_storage_sql2 (temporary name), sql.lib, util.sql: New SQL API supporting cross-module connection sharing, transactions and Things - a work in progress
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
210 for i=1,#index do
9916f0a2d178 mod_storage_sql2 (temporary name), sql.lib, util.sql: New SQL API supporting cross-module connection sharing, transactions and Things - a work in progress
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
211 sql = sql.."`"..index[i].."`";
9916f0a2d178 mod_storage_sql2 (temporary name), sql.lib, util.sql: New SQL API supporting cross-module connection sharing, transactions and Things - a work in progress
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
212 if i ~= #index then sql = sql..", "; end
9916f0a2d178 mod_storage_sql2 (temporary name), sql.lib, util.sql: New SQL API supporting cross-module connection sharing, transactions and Things - a work in progress
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
213 end
9916f0a2d178 mod_storage_sql2 (temporary name), sql.lib, util.sql: New SQL API supporting cross-module connection sharing, transactions and Things - a work in progress
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
214 sql = sql..");"
9916f0a2d178 mod_storage_sql2 (temporary name), sql.lib, util.sql: New SQL API supporting cross-module connection sharing, transactions and Things - a work in progress
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
215 if self.params.driver == "PostgreSQL" then
9916f0a2d178 mod_storage_sql2 (temporary name), sql.lib, util.sql: New SQL API supporting cross-module connection sharing, transactions and Things - a work in progress
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
216 sql = sql:gsub("`", "\"");
9916f0a2d178 mod_storage_sql2 (temporary name), sql.lib, util.sql: New SQL API supporting cross-module connection sharing, transactions and Things - a work in progress
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
217 elseif self.params.driver == "MySQL" then
9916f0a2d178 mod_storage_sql2 (temporary name), sql.lib, util.sql: New SQL API supporting cross-module connection sharing, transactions and Things - a work in progress
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
218 sql = sql:gsub("`([,)])", "`(20)%1");
9916f0a2d178 mod_storage_sql2 (temporary name), sql.lib, util.sql: New SQL API supporting cross-module connection sharing, transactions and Things - a work in progress
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
219 end
5885
cbc25ae1eea0 util.sql: Allow creating unique indices
Kim Alvefur <zash@zash.se>
parents: 5883
diff changeset
220 if index.unique then
cbc25ae1eea0 util.sql: Allow creating unique indices
Kim Alvefur <zash@zash.se>
parents: 5883
diff changeset
221 sql = sql:gsub("^CREATE", "CREATE UNIQUE");
cbc25ae1eea0 util.sql: Allow creating unique indices
Kim Alvefur <zash@zash.se>
parents: 5883
diff changeset
222 end
5494
9916f0a2d178 mod_storage_sql2 (temporary name), sql.lib, util.sql: New SQL API supporting cross-module connection sharing, transactions and Things - a work in progress
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
223 --print(sql);
9916f0a2d178 mod_storage_sql2 (temporary name), sql.lib, util.sql: New SQL API supporting cross-module connection sharing, transactions and Things - a work in progress
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
224 return self:execute(sql);
9916f0a2d178 mod_storage_sql2 (temporary name), sql.lib, util.sql: New SQL API supporting cross-module connection sharing, transactions and Things - a work in progress
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
225 end
9916f0a2d178 mod_storage_sql2 (temporary name), sql.lib, util.sql: New SQL API supporting cross-module connection sharing, transactions and Things - a work in progress
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
226 function engine:_create_table(table)
9916f0a2d178 mod_storage_sql2 (temporary name), sql.lib, util.sql: New SQL API supporting cross-module connection sharing, transactions and Things - a work in progress
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
227 local sql = "CREATE TABLE `"..table.name.."` (";
9916f0a2d178 mod_storage_sql2 (temporary name), sql.lib, util.sql: New SQL API supporting cross-module connection sharing, transactions and Things - a work in progress
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
228 for i,col in ipairs(table.c) do
5890
544ca3d94596 util.sql: Rewrite MEDIUMTEXT to TEXT for drivers other than MySQL
Kim Alvefur <zash@zash.se>
parents: 5889
diff changeset
229 local col_type = col.type;
544ca3d94596 util.sql: Rewrite MEDIUMTEXT to TEXT for drivers other than MySQL
Kim Alvefur <zash@zash.se>
parents: 5889
diff changeset
230 if col_type == "MEDIUMTEXT" and self.params.driver ~= "MySQL" then
544ca3d94596 util.sql: Rewrite MEDIUMTEXT to TEXT for drivers other than MySQL
Kim Alvefur <zash@zash.se>
parents: 5889
diff changeset
231 col_type = "TEXT"; -- MEDIUMTEXT is MySQL-specific
544ca3d94596 util.sql: Rewrite MEDIUMTEXT to TEXT for drivers other than MySQL
Kim Alvefur <zash@zash.se>
parents: 5889
diff changeset
232 end
5912
f6145e894569 util.sql: Rewrite auto increment columns to SERIAL for PostgreSQL
Kim Alvefur <zash@zash.se>
parents: 5910
diff changeset
233 if col.auto_increment == true and self.params.driver == "PostgreSQL" then
f6145e894569 util.sql: Rewrite auto increment columns to SERIAL for PostgreSQL
Kim Alvefur <zash@zash.se>
parents: 5910
diff changeset
234 col_type = "BIGSERIAL";
f6145e894569 util.sql: Rewrite auto increment columns to SERIAL for PostgreSQL
Kim Alvefur <zash@zash.se>
parents: 5910
diff changeset
235 end
5890
544ca3d94596 util.sql: Rewrite MEDIUMTEXT to TEXT for drivers other than MySQL
Kim Alvefur <zash@zash.se>
parents: 5889
diff changeset
236 sql = sql.."`"..col.name.."` "..col_type;
5494
9916f0a2d178 mod_storage_sql2 (temporary name), sql.lib, util.sql: New SQL API supporting cross-module connection sharing, transactions and Things - a work in progress
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
237 if col.nullable == false then sql = sql.." NOT NULL"; end
5886
1237f9cc3123 util.sql: Allow columns to be marked the primary key
Kim Alvefur <zash@zash.se>
parents: 5885
diff changeset
238 if col.primary_key == true then sql = sql.." PRIMARY KEY"; end
5887
1f860279b2f8 util.sql: Support incrementing columns
Kim Alvefur <zash@zash.se>
parents: 5886
diff changeset
239 if col.auto_increment == true then
5912
f6145e894569 util.sql: Rewrite auto increment columns to SERIAL for PostgreSQL
Kim Alvefur <zash@zash.se>
parents: 5910
diff changeset
240 if self.params.driver == "MySQL" then
5887
1f860279b2f8 util.sql: Support incrementing columns
Kim Alvefur <zash@zash.se>
parents: 5886
diff changeset
241 sql = sql.." AUTO_INCREMENT";
1f860279b2f8 util.sql: Support incrementing columns
Kim Alvefur <zash@zash.se>
parents: 5886
diff changeset
242 elseif self.params.driver == "SQLite3" then
1f860279b2f8 util.sql: Support incrementing columns
Kim Alvefur <zash@zash.se>
parents: 5886
diff changeset
243 sql = sql.." AUTOINCREMENT";
1f860279b2f8 util.sql: Support incrementing columns
Kim Alvefur <zash@zash.se>
parents: 5886
diff changeset
244 end
1f860279b2f8 util.sql: Support incrementing columns
Kim Alvefur <zash@zash.se>
parents: 5886
diff changeset
245 end
5494
9916f0a2d178 mod_storage_sql2 (temporary name), sql.lib, util.sql: New SQL API supporting cross-module connection sharing, transactions and Things - a work in progress
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
246 if i ~= #table.c then sql = sql..", "; end
9916f0a2d178 mod_storage_sql2 (temporary name), sql.lib, util.sql: New SQL API supporting cross-module connection sharing, transactions and Things - a work in progress
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
247 end
9916f0a2d178 mod_storage_sql2 (temporary name), sql.lib, util.sql: New SQL API supporting cross-module connection sharing, transactions and Things - a work in progress
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
248 sql = sql.. ");"
9916f0a2d178 mod_storage_sql2 (temporary name), sql.lib, util.sql: New SQL API supporting cross-module connection sharing, transactions and Things - a work in progress
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
249 if self.params.driver == "PostgreSQL" then
9916f0a2d178 mod_storage_sql2 (temporary name), sql.lib, util.sql: New SQL API supporting cross-module connection sharing, transactions and Things - a work in progress
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
250 sql = sql:gsub("`", "\"");
5739
2e9ad9cb206f util.sql: Set charset and collation for MySQL when creating tables
Kim Alvefur <zash@zash.se>
parents: 5494
diff changeset
251 elseif self.params.driver == "MySQL" then
6759
fb952032f83e util.sql: Create table with same charset as the charset we selected for our connection, also use corresponding _bin collation
Matthew Wild <mwild1@gmail.com>
parents: 6758
diff changeset
252 sql = sql:gsub(";$", (" CHARACTER SET '%s' COLLATE '%s_bin';"):format(self.charset, self.charset));
5494
9916f0a2d178 mod_storage_sql2 (temporary name), sql.lib, util.sql: New SQL API supporting cross-module connection sharing, transactions and Things - a work in progress
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
253 end
9916f0a2d178 mod_storage_sql2 (temporary name), sql.lib, util.sql: New SQL API supporting cross-module connection sharing, transactions and Things - a work in progress
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
254 local success,err = self:execute(sql);
9916f0a2d178 mod_storage_sql2 (temporary name), sql.lib, util.sql: New SQL API supporting cross-module connection sharing, transactions and Things - a work in progress
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
255 if not success then return success,err; end
9916f0a2d178 mod_storage_sql2 (temporary name), sql.lib, util.sql: New SQL API supporting cross-module connection sharing, transactions and Things - a work in progress
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
256 for i,v in ipairs(table.__table__) do
9916f0a2d178 mod_storage_sql2 (temporary name), sql.lib, util.sql: New SQL API supporting cross-module connection sharing, transactions and Things - a work in progress
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
257 if is_index(v) then
9916f0a2d178 mod_storage_sql2 (temporary name), sql.lib, util.sql: New SQL API supporting cross-module connection sharing, transactions and Things - a work in progress
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
258 self:_create_index(v);
9916f0a2d178 mod_storage_sql2 (temporary name), sql.lib, util.sql: New SQL API supporting cross-module connection sharing, transactions and Things - a work in progress
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
259 end
9916f0a2d178 mod_storage_sql2 (temporary name), sql.lib, util.sql: New SQL API supporting cross-module connection sharing, transactions and Things - a work in progress
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
260 end
9916f0a2d178 mod_storage_sql2 (temporary name), sql.lib, util.sql: New SQL API supporting cross-module connection sharing, transactions and Things - a work in progress
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
261 return success;
9916f0a2d178 mod_storage_sql2 (temporary name), sql.lib, util.sql: New SQL API supporting cross-module connection sharing, transactions and Things - a work in progress
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
262 end
5883
39b187e7e892 mod_storage_sql2, util.sql: Move code for setting encoding to util.sql
Kim Alvefur <zash@zash.se>
parents: 5776
diff changeset
263 function engine:set_encoding() -- to UTF-8
5888
f3e408ae59a6 util.sql: Find out if MySQL supports utf8mb4 and use that
Kim Alvefur <zash@zash.se>
parents: 5887
diff changeset
264 local driver = self.params.driver;
5889
ea6a3adb6a69 util.sql: Check what encoding SQLite3 uses
Kim Alvefur <zash@zash.se>
parents: 5888
diff changeset
265 if driver == "SQLite3" then
ea6a3adb6a69 util.sql: Check what encoding SQLite3 uses
Kim Alvefur <zash@zash.se>
parents: 5888
diff changeset
266 return self:transaction(function()
ea6a3adb6a69 util.sql: Check what encoding SQLite3 uses
Kim Alvefur <zash@zash.se>
parents: 5888
diff changeset
267 if self:select"PRAGMA encoding;"()[1] == "UTF-8" then
ea6a3adb6a69 util.sql: Check what encoding SQLite3 uses
Kim Alvefur <zash@zash.se>
parents: 5888
diff changeset
268 self.charset = "utf8";
ea6a3adb6a69 util.sql: Check what encoding SQLite3 uses
Kim Alvefur <zash@zash.se>
parents: 5888
diff changeset
269 end
ea6a3adb6a69 util.sql: Check what encoding SQLite3 uses
Kim Alvefur <zash@zash.se>
parents: 5888
diff changeset
270 end);
ea6a3adb6a69 util.sql: Check what encoding SQLite3 uses
Kim Alvefur <zash@zash.se>
parents: 5888
diff changeset
271 end
5888
f3e408ae59a6 util.sql: Find out if MySQL supports utf8mb4 and use that
Kim Alvefur <zash@zash.se>
parents: 5887
diff changeset
272 local set_names_query = "SET NAMES '%s';"
f3e408ae59a6 util.sql: Find out if MySQL supports utf8mb4 and use that
Kim Alvefur <zash@zash.se>
parents: 5887
diff changeset
273 local charset = "utf8";
f3e408ae59a6 util.sql: Find out if MySQL supports utf8mb4 and use that
Kim Alvefur <zash@zash.se>
parents: 5887
diff changeset
274 if driver == "MySQL" then
f3e408ae59a6 util.sql: Find out if MySQL supports utf8mb4 and use that
Kim Alvefur <zash@zash.se>
parents: 5887
diff changeset
275 local ok, charsets = self:transaction(function()
5919
d1cc67ed0767 util.sql: Fix previous commit
Kim Alvefur <zash@zash.se>
parents: 5918
diff changeset
276 return self:select"SELECT `CHARACTER_SET_NAME` FROM `information_schema`.`CHARACTER_SETS` WHERE `CHARACTER_SET_NAME` LIKE 'utf8%' ORDER BY MAXLEN DESC LIMIT 1;";
5888
f3e408ae59a6 util.sql: Find out if MySQL supports utf8mb4 and use that
Kim Alvefur <zash@zash.se>
parents: 5887
diff changeset
277 end);
f3e408ae59a6 util.sql: Find out if MySQL supports utf8mb4 and use that
Kim Alvefur <zash@zash.se>
parents: 5887
diff changeset
278 local row = ok and charsets();
f3e408ae59a6 util.sql: Find out if MySQL supports utf8mb4 and use that
Kim Alvefur <zash@zash.se>
parents: 5887
diff changeset
279 charset = row and row[1] or charset;
6760
e45a58c72609 util.sql: Use appropriate collation for the chosen character set - fixes MySQL silently ignoring our SET NAMES command when we use utf8mb4
Matthew Wild <mwild1@gmail.com>
parents: 6759
diff changeset
280 set_names_query = set_names_query:gsub(";$", (" COLLATE '%s';"):format(charset.."_bin"));
5883
39b187e7e892 mod_storage_sql2, util.sql: Move code for setting encoding to util.sql
Kim Alvefur <zash@zash.se>
parents: 5776
diff changeset
281 end
5888
f3e408ae59a6 util.sql: Find out if MySQL supports utf8mb4 and use that
Kim Alvefur <zash@zash.se>
parents: 5887
diff changeset
282 self.charset = charset;
6763
e961ac4efbb3 util.sql: Make set_encoding() return failure of SET NAMES
Matthew Wild <mwild1@gmail.com>
parents: 6762
diff changeset
283 log("debug", "Using encoding '%s' for database connection", charset);
e961ac4efbb3 util.sql: Make set_encoding() return failure of SET NAMES
Matthew Wild <mwild1@gmail.com>
parents: 6762
diff changeset
284 local ok, err = self:transaction(function() return self:execute(set_names_query:format(charset)); end);
e961ac4efbb3 util.sql: Make set_encoding() return failure of SET NAMES
Matthew Wild <mwild1@gmail.com>
parents: 6762
diff changeset
285 if not ok then
e961ac4efbb3 util.sql: Make set_encoding() return failure of SET NAMES
Matthew Wild <mwild1@gmail.com>
parents: 6762
diff changeset
286 return ok, err;
e961ac4efbb3 util.sql: Make set_encoding() return failure of SET NAMES
Matthew Wild <mwild1@gmail.com>
parents: 6762
diff changeset
287 end
6771
60957dd5b41b util.{interpolation,prosodyctl,sql}: Trim trailing whitespace
Kim Alvefur <zash@zash.se>
parents: 6766
diff changeset
288
6766
b38db4b634d3 util.sql: Add safety check to ensure our chosen connection charset is actually being used (MySQL)
Matthew Wild <mwild1@gmail.com>
parents: 6765
diff changeset
289 if driver == "MySQL" then
b38db4b634d3 util.sql: Add safety check to ensure our chosen connection charset is actually being used (MySQL)
Matthew Wild <mwild1@gmail.com>
parents: 6765
diff changeset
290 local ok, actual_charset = self:transaction(function ()
b38db4b634d3 util.sql: Add safety check to ensure our chosen connection charset is actually being used (MySQL)
Matthew Wild <mwild1@gmail.com>
parents: 6765
diff changeset
291 return self:select"SHOW SESSION VARIABLES LIKE 'character_set_client'";
b38db4b634d3 util.sql: Add safety check to ensure our chosen connection charset is actually being used (MySQL)
Matthew Wild <mwild1@gmail.com>
parents: 6765
diff changeset
292 end);
b38db4b634d3 util.sql: Add safety check to ensure our chosen connection charset is actually being used (MySQL)
Matthew Wild <mwild1@gmail.com>
parents: 6765
diff changeset
293 for row in actual_charset do
b38db4b634d3 util.sql: Add safety check to ensure our chosen connection charset is actually being used (MySQL)
Matthew Wild <mwild1@gmail.com>
parents: 6765
diff changeset
294 if row[2] ~= charset then
b38db4b634d3 util.sql: Add safety check to ensure our chosen connection charset is actually being used (MySQL)
Matthew Wild <mwild1@gmail.com>
parents: 6765
diff changeset
295 log("error", "MySQL %s is actually %q (expected %q)", row[1], row[2], charset);
b38db4b634d3 util.sql: Add safety check to ensure our chosen connection charset is actually being used (MySQL)
Matthew Wild <mwild1@gmail.com>
parents: 6765
diff changeset
296 return false, "Failed to set connection encoding";
b38db4b634d3 util.sql: Add safety check to ensure our chosen connection charset is actually being used (MySQL)
Matthew Wild <mwild1@gmail.com>
parents: 6765
diff changeset
297 end
b38db4b634d3 util.sql: Add safety check to ensure our chosen connection charset is actually being used (MySQL)
Matthew Wild <mwild1@gmail.com>
parents: 6765
diff changeset
298 end
b38db4b634d3 util.sql: Add safety check to ensure our chosen connection charset is actually being used (MySQL)
Matthew Wild <mwild1@gmail.com>
parents: 6765
diff changeset
299 end
6771
60957dd5b41b util.{interpolation,prosodyctl,sql}: Trim trailing whitespace
Kim Alvefur <zash@zash.se>
parents: 6766
diff changeset
300
6763
e961ac4efbb3 util.sql: Make set_encoding() return failure of SET NAMES
Matthew Wild <mwild1@gmail.com>
parents: 6762
diff changeset
301 return true;
5883
39b187e7e892 mod_storage_sql2, util.sql: Move code for setting encoding to util.sql
Kim Alvefur <zash@zash.se>
parents: 5776
diff changeset
302 end
5494
9916f0a2d178 mod_storage_sql2 (temporary name), sql.lib, util.sql: New SQL API supporting cross-module connection sharing, transactions and Things - a work in progress
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
303 local engine_mt = { __index = engine };
9916f0a2d178 mod_storage_sql2 (temporary name), sql.lib, util.sql: New SQL API supporting cross-module connection sharing, transactions and Things - a work in progress
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
304
6777
5de6b93d0190 util.*: Remove use of module() function, make all module functions local and return them in a table at the end
Kim Alvefur <zash@zash.se>
parents: 6771
diff changeset
305 local function db2uri(params)
5494
9916f0a2d178 mod_storage_sql2 (temporary name), sql.lib, util.sql: New SQL API supporting cross-module connection sharing, transactions and Things - a work in progress
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
306 return build_url{
9916f0a2d178 mod_storage_sql2 (temporary name), sql.lib, util.sql: New SQL API supporting cross-module connection sharing, transactions and Things - a work in progress
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
307 scheme = params.driver,
9916f0a2d178 mod_storage_sql2 (temporary name), sql.lib, util.sql: New SQL API supporting cross-module connection sharing, transactions and Things - a work in progress
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
308 user = params.username,
9916f0a2d178 mod_storage_sql2 (temporary name), sql.lib, util.sql: New SQL API supporting cross-module connection sharing, transactions and Things - a work in progress
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
309 password = params.password,
9916f0a2d178 mod_storage_sql2 (temporary name), sql.lib, util.sql: New SQL API supporting cross-module connection sharing, transactions and Things - a work in progress
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
310 host = params.host,
9916f0a2d178 mod_storage_sql2 (temporary name), sql.lib, util.sql: New SQL API supporting cross-module connection sharing, transactions and Things - a work in progress
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
311 port = params.port,
9916f0a2d178 mod_storage_sql2 (temporary name), sql.lib, util.sql: New SQL API supporting cross-module connection sharing, transactions and Things - a work in progress
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
312 path = params.database,
9916f0a2d178 mod_storage_sql2 (temporary name), sql.lib, util.sql: New SQL API supporting cross-module connection sharing, transactions and Things - a work in progress
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
313 };
9916f0a2d178 mod_storage_sql2 (temporary name), sql.lib, util.sql: New SQL API supporting cross-module connection sharing, transactions and Things - a work in progress
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
314 end
6735
b553a30620b2 util.sql: Remove built-in engine caching. This is the wrong layer to do this, and unintentionally sharing connections could cause problems (e.g. when interleaving multiple queries and result fetching)
Matthew Wild <mwild1@gmail.com>
parents: 6734
diff changeset
315
6777
5de6b93d0190 util.*: Remove use of module() function, make all module functions local and return them in a table at the end
Kim Alvefur <zash@zash.se>
parents: 6771
diff changeset
316 local function create_engine(self, params, onconnect)
6735
b553a30620b2 util.sql: Remove built-in engine caching. This is the wrong layer to do this, and unintentionally sharing connections could cause problems (e.g. when interleaving multiple queries and result fetching)
Matthew Wild <mwild1@gmail.com>
parents: 6734
diff changeset
317 return setmetatable({ url = db2uri(params), params = params, onconnect = onconnect }, engine_mt);
5494
9916f0a2d178 mod_storage_sql2 (temporary name), sql.lib, util.sql: New SQL API supporting cross-module connection sharing, transactions and Things - a work in progress
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
318 end
9916f0a2d178 mod_storage_sql2 (temporary name), sql.lib, util.sql: New SQL API supporting cross-module connection sharing, transactions and Things - a work in progress
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
319
6777
5de6b93d0190 util.*: Remove use of module() function, make all module functions local and return them in a table at the end
Kim Alvefur <zash@zash.se>
parents: 6771
diff changeset
320 return {
5de6b93d0190 util.*: Remove use of module() function, make all module functions local and return them in a table at the end
Kim Alvefur <zash@zash.se>
parents: 6771
diff changeset
321 is_column = is_column;
5de6b93d0190 util.*: Remove use of module() function, make all module functions local and return them in a table at the end
Kim Alvefur <zash@zash.se>
parents: 6771
diff changeset
322 is_index = is_index;
5de6b93d0190 util.*: Remove use of module() function, make all module functions local and return them in a table at the end
Kim Alvefur <zash@zash.se>
parents: 6771
diff changeset
323 is_table = is_table;
5de6b93d0190 util.*: Remove use of module() function, make all module functions local and return them in a table at the end
Kim Alvefur <zash@zash.se>
parents: 6771
diff changeset
324 is_query = is_query;
5de6b93d0190 util.*: Remove use of module() function, make all module functions local and return them in a table at the end
Kim Alvefur <zash@zash.se>
parents: 6771
diff changeset
325 Integer = Integer;
5de6b93d0190 util.*: Remove use of module() function, make all module functions local and return them in a table at the end
Kim Alvefur <zash@zash.se>
parents: 6771
diff changeset
326 String = String;
5de6b93d0190 util.*: Remove use of module() function, make all module functions local and return them in a table at the end
Kim Alvefur <zash@zash.se>
parents: 6771
diff changeset
327 Column = Column;
5de6b93d0190 util.*: Remove use of module() function, make all module functions local and return them in a table at the end
Kim Alvefur <zash@zash.se>
parents: 6771
diff changeset
328 Table = Table;
5de6b93d0190 util.*: Remove use of module() function, make all module functions local and return them in a table at the end
Kim Alvefur <zash@zash.se>
parents: 6771
diff changeset
329 Index = Index;
5de6b93d0190 util.*: Remove use of module() function, make all module functions local and return them in a table at the end
Kim Alvefur <zash@zash.se>
parents: 6771
diff changeset
330 create_engine = create_engine;
5de6b93d0190 util.*: Remove use of module() function, make all module functions local and return them in a table at the end
Kim Alvefur <zash@zash.se>
parents: 6771
diff changeset
331 };