prosody
345f1d5b7022
plugins/mod_storage_sql.lua

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plugins/mod_storage_sql.lua @ 3864:345f1d5b7022

mod_storage_sql: Use 'IS' for comparison instead of '=', to avoid SQL's NULL insanity.
author Waqas Hussain <waqas20@gmail.com>
date Mon, 13 Dec 2010 19:28:57 +0500
parent 3863:2a9475dce7ff
child 3772:e1f6fe098404
comparison
equal deleted inserted replaced
3863:2a9475dce7ff 3864:345f1d5b7022
113 113
114 local keyval_store = {}; 114 local keyval_store = {};
115 keyval_store.__index = keyval_store; 115 keyval_store.__index = keyval_store;
116 function keyval_store:get(username) 116 function keyval_store:get(username)
117 user,store = username,self.store; 117 user,store = username,self.store;
118 local stmt, err = getsql("SELECT * FROM Prosody WHERE host=? AND user=? AND store=? AND subkey=NULL"); 118 local stmt, err = getsql("SELECT * FROM Prosody WHERE host IS ? AND user IS ? AND store IS ? AND subkey IS NULL");
119 if not stmt then return nil, err; end 119 if not stmt then return nil, err; end
120 120
121 local haveany; 121 local haveany;
122 local result = {}; 122 local result = {};
123 for row in stmt:rows(true) do 123 for row in stmt:rows(true) do
135 return haveany and result or nil; 135 return haveany and result or nil;
136 end 136 end
137 function keyval_store:set(username, data) 137 function keyval_store:set(username, data)
138 user,store = username,self.store; 138 user,store = username,self.store;
139 -- start transaction 139 -- start transaction
140 local affected, err = setsql("DELETE FROM Prosody WHERE host=? AND user=? AND store=? AND subkey=NULL"); 140 local affected, err = setsql("DELETE FROM Prosody WHERE host IS ? AND user IS ? AND store IS ? AND subkey IS NULL");
141 141
142 if data and next(data) ~= nil then 142 if data and next(data) ~= nil then
143 local extradata = {}; 143 local extradata = {};
144 for key, value in pairs(data) do 144 for key, value in pairs(data) do
145 if type(key) == "string" then 145 if type(key) == "string" then
163 163
164 local map_store = {}; 164 local map_store = {};
165 map_store.__index = map_store; 165 map_store.__index = map_store;
166 function map_store:get(username, key) 166 function map_store:get(username, key)
167 user,store = username,self.store; 167 user,store = username,self.store;
168 local stmt, err = getsql("SELECT * FROM Prosody WHERE host=? AND user=? AND store=? AND key=?", key); 168 local stmt, err = getsql("SELECT * FROM Prosody WHERE host IS ? AND user IS ? AND store IS ? AND key IS ?", key);
169 if not stmt then return nil, err; end 169 if not stmt then return nil, err; end
170 170
171 local haveany; 171 local haveany;
172 local result = {}; 172 local result = {};
173 for row in stmt:rows(true) do 173 for row in stmt:rows(true) do
185 return haveany and result or nil; 185 return haveany and result or nil;
186 end 186 end
187 function map_store:set(username, key, data) 187 function map_store:set(username, key, data)
188 user,store = username,self.store; 188 user,store = username,self.store;
189 -- start transaction 189 -- start transaction
190 local affected, err = setsql("DELETE FROM Prosody WHERE host=? AND user=? AND store=? AND key=?", key); 190 local affected, err = setsql("DELETE FROM Prosody WHERE host IS ? AND user IS ? AND store IS ? AND key IS ?", key);
191 191
192 if data and next(data) ~= nil then 192 if data and next(data) ~= nil then
193 local extradata = {}; 193 local extradata = {};
194 for subkey, value in pairs(data) do 194 for subkey, value in pairs(data) do
195 if type(subkey) == "string" then 195 if type(subkey) == "string" then
217 user,store = username,self.store; 217 user,store = username,self.store;
218 218
219 local cols = {"from", "to", "jid", "typ"}; 219 local cols = {"from", "to", "jid", "typ"};
220 local vals = { from , to , jid , typ }; 220 local vals = { from , to , jid , typ };
221 local stmt, err; 221 local stmt, err;
222 local query = "SELECT * FROM ProsodyArchive WHERE host=? AND user=? AND store=?"; 222 local query = "SELECT * FROM ProsodyArchive WHERE host IS ? AND user IS ? AND store IS ?";
223 223
224 query = query.." ORDER BY time"; 224 query = query.." ORDER BY time";
225 --local stmt, err = getsql("SELECT * FROM Prosody WHERE host=? AND user=? AND store=? AND key=?", key); 225 --local stmt, err = getsql("SELECT * FROM Prosody WHERE host IS ? AND user IS ? AND store IS ? AND key IS ?", key);
226 226
227 return nil, "not-implemented" 227 return nil, "not-implemented"
228 end 228 end
229 229
230 local driver = { name = "sql" }; 230 local driver = { name = "sql" };