prosody
e7efa9703a3f
plugins/mod_storage_sql2.lua

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plugins/mod_storage_sql2.lua @ 5996:e7efa9703a3f

mod_storage_sql2: Only attempt to delete conflicting items if an ID/key is given
author Kim Alvefur <zash@zash.se>
date Tue, 21 Jan 2014 01:51:13 +0100
parent 5995:aa7534a877fe
child 6013:918ab89cb68d
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1
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2 local json = require "util.json";
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3 local xml_parse = require "util.xml".parse;
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4 local uuid = require "util.uuid";
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5 local resolve_relative_path = require "core.configmanager".resolve_relative_path;
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6
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7 local stanza_mt = require"util.stanza".stanza_mt;
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8 local getmetatable = getmetatable;
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9 local t_concat = table.concat;
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10 local function is_stanza(x) return getmetatable(x) == stanza_mt; end
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11
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12 local noop = function() end
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13 local unpack = unpack
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14 local function iterator(result)
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15 return function(result)
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16 local row = result();
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17 if row ~= nil then
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18 return unpack(row);
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19 end
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20 end, result, nil;
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21 end
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22
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23 local mod_sql = module:require("sql");
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24 local params = module:get_option("sql");
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26 local engine; -- TODO create engine
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28 local function create_table()
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29 local Table,Column,Index = mod_sql.Table,mod_sql.Column,mod_sql.Index;
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30
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31 local ProsodyTable = Table {
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32 name="prosody";
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33 Column { name="host", type="TEXT", nullable=false };
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34 Column { name="user", type="TEXT", nullable=false };
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35 Column { name="store", type="TEXT", nullable=false };
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36 Column { name="key", type="TEXT", nullable=false };
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37 Column { name="type", type="TEXT", nullable=false };
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38 Column { name="value", type="MEDIUMTEXT", nullable=false };
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39 Index { name="prosody_index", "host", "user", "store", "key" };
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40 };
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41 engine:transaction(function()
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42 ProsodyTable:create(engine);
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43 end);
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44
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45 local ProsodyArchiveTable = Table {
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46 name="prosodyarchive";
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47 Column { name="sort_id", type="INTEGER", primary_key=true, auto_increment=true };
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48 Column { name="host", type="TEXT", nullable=false };
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49 Column { name="user", type="TEXT", nullable=false };
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50 Column { name="store", type="TEXT", nullable=false };
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51 Column { name="key", type="TEXT", nullable=false }; -- item id
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52 Column { name="when", type="INTEGER", nullable=false }; -- timestamp
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53 Column { name="with", type="TEXT", nullable=false }; -- related id
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54 Column { name="type", type="TEXT", nullable=false };
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55 Column { name="value", type="MEDIUMTEXT", nullable=false };
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56 Index { name="prosodyarchive_index", unique = true, "host", "user", "store", "key" };
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57 };
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58 engine:transaction(function()
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59 ProsodyArchiveTable:create(engine);
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60 end);
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61 end
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62
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63 local function upgrade_table()
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64 if params.driver == "MySQL" then
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65 local success,err = engine:transaction(function()
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66 local result = engine:execute("SHOW COLUMNS FROM prosody WHERE Field='value' and Type='text'");
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67 if result:rowcount() > 0 then
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68 module:log("info", "Upgrading database schema...");
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69 engine:execute("ALTER TABLE prosody MODIFY COLUMN `value` MEDIUMTEXT");
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70 module:log("info", "Database table automatically upgraded");
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71 end
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72 return true;
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73 end);
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74 if not success then
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75 module:log("error", "Failed to check/upgrade database schema (%s), please see "
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76 .."http://prosody.im/doc/mysql for help",
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77 err or "unknown error");
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78 return false;
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79 end
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80 -- COMPAT w/pre-0.9: Upgrade tables to UTF-8 if not already
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81 local check_encoding_query = "SELECT `COLUMN_NAME`,`COLUMN_TYPE` FROM `information_schema`.`columns` WHERE `TABLE_NAME`='prosody' AND ( `CHARACTER_SET_NAME`!='utf8' OR `COLLATION_NAME`!='utf8_bin' );";
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82 success,err = engine:transaction(function()
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83 local result = engine:execute(check_encoding_query);
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84 local n_bad_columns = result:rowcount();
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85 if n_bad_columns > 0 then
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86 module:log("warn", "Found %d columns in prosody table requiring encoding change, updating now...", n_bad_columns);
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87 local fix_column_query1 = "ALTER TABLE `prosody` CHANGE `%s` `%s` BLOB;";
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88 local fix_column_query2 = "ALTER TABLE `prosody` CHANGE `%s` `%s` %s CHARACTER SET 'utf8' COLLATE 'utf8_bin';";
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89 for row in result:rows() do
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90 local column_name, column_type = unpack(row);
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91 engine:execute(fix_column_query1:format(column_name, column_name));
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92 engine:execute(fix_column_query2:format(column_name, column_name, column_type));
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93 end
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94 module:log("info", "Database encoding upgrade complete!");
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95 end
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96 end);
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97 success,err = engine:transaction(function() return engine:execute(check_encoding_query); end);
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98 if not success then
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99 module:log("error", "Failed to check/upgrade database encoding: %s", err or "unknown error");
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100 end
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101 end
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102 end
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103
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104 do -- process options to get a db connection
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105 params = params or { driver = "SQLite3" };
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106
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107 if params.driver == "SQLite3" then
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108 params.database = resolve_relative_path(prosody.paths.data or ".", params.database or "prosody.sqlite");
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109 end
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110
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111 assert(params.driver and params.database, "Both the SQL driver and the database need to be specified");
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112
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113 --local dburi = db2uri(params);
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114 engine = mod_sql:create_engine(params);
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115
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116 engine:set_encoding();
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117
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118 if module:get_option("sql_manage_tables", true) then
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119 -- Automatically create table, ignore failure (table probably already exists)
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120 create_table();
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121 -- Encoding mess
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diff changeset
122 upgrade_table();
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123 end
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124 end
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125
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126 local function serialize(value)
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127 local t = type(value);
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128 if t == "string" or t == "boolean" or t == "number" then
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129 return t, tostring(value);
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130 elseif is_stanza(value) then
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131 return "xml", tostring(value);
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132 elseif t == "table" then
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133 local value,err = json.encode(value);
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134 if value then return "json", value; end
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135 return nil, err;
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136 end
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137 return nil, "Unhandled value type: "..t;
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138 end
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139 local function deserialize(t, value)
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140 if t == "string" then return value;
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141 elseif t == "boolean" then
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142 if value == "true" then return true;
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143 elseif value == "false" then return false; end
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144 elseif t == "number" then return tonumber(value);
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145 elseif t == "json" then
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146 return json.decode(value);
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147 elseif t == "xml" then
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148 return xml_parse(value);
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149 end
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150 end
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151
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152 local host = module.host;
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153 local user, store;
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154
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155 local function keyval_store_get()
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diff changeset
156 local haveany;
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157 local result = {};
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158 for row in engine:select("SELECT `key`,`type`,`value` FROM `prosody` WHERE `host`=? AND `user`=? AND `store`=?", host, user or "", store) do
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diff changeset
159 haveany = true;
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diff changeset
160 local k = row[1];
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diff changeset
161 local v = deserialize(row[2], row[3]);
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parents:
diff changeset
162 if k and v then
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parents:
diff changeset
163 if k ~= "" then result[k] = v; elseif type(v) == "table" 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
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parents:
diff changeset
164 for a,b in pairs(v) do
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parents:
diff changeset
165 result[a] = b;
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diff changeset
166 end
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diff changeset
167 end
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diff changeset
168 end
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diff changeset
169 end
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170 if haveany then
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diff changeset
171 return result;
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172 end
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173 end
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diff changeset
174 local function keyval_store_set(data)
5732
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175 engine:delete("DELETE FROM `prosody` WHERE `host`=? AND `user`=? AND `store`=?", host, user or "", store);
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diff changeset
176
5494
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diff changeset
177 if data and next(data) ~= nil then
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178 local extradata = {};
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parents:
diff changeset
179 for key, value in pairs(data) do
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180 if type(key) == "string" and key ~= "" then
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diff changeset
181 local t, value = serialize(value);
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parents:
diff changeset
182 assert(t, value);
5732
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183 engine:insert("INSERT INTO `prosody` (`host`,`user`,`store`,`key`,`type`,`value`) VALUES (?,?,?,?,?,?)", host, user or "", store, key, t, value);
5494
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184 else
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diff changeset
185 extradata[key] = value;
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diff changeset
186 end
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187 end
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diff changeset
188 if next(extradata) ~= nil then
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parents:
diff changeset
189 local t, extradata = serialize(extradata);
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diff changeset
190 assert(t, extradata);
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191 engine:insert("INSERT INTO `prosody` (`host`,`user`,`store`,`key`,`type`,`value`) VALUES (?,?,?,?,?,?)", host, user or "", store, "", t, extradata);
5494
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192 end
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parents:
diff changeset
193 end
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diff changeset
194 return true;
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diff changeset
195 end
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parents:
diff changeset
196
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diff changeset
197 local keyval_store = {};
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diff changeset
198 keyval_store.__index = keyval_store;
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
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diff changeset
199 function keyval_store:get(username)
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diff changeset
200 user,store = username,self.store;
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diff changeset
201 return select(2, engine:transaction(keyval_store_get));
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202 end
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diff changeset
203 function keyval_store:set(username, data)
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diff changeset
204 user,store = username,self.store;
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205 return engine:transaction(function()
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diff changeset
206 return keyval_store_set(data);
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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
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parents:
diff changeset
208 end
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diff changeset
209 function keyval_store:users()
5733
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diff changeset
210 local ok, result = engine:transaction(function()
5494
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parents:
diff changeset
211 return engine:select("SELECT DISTINCT `user` FROM `prosody` WHERE `host`=? AND `store`=?", host, self.store);
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
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parents:
diff changeset
212 end);
5733
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parents: 5732
diff changeset
213 if not ok then return ok, result end
aeeced7b0149 mod_storage_sql2: Fix iteration over users and stores
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parents: 5732
diff changeset
214 return iterator(result);
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
215 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
216
5741
c7a664e496b3 mod_storage_sql2: Add archive store with append and find methods
Kim Alvefur <zash@zash.se>
parents: 5740
diff changeset
217 local archive_store = {}
c7a664e496b3 mod_storage_sql2: Add archive store with append and find methods
Kim Alvefur <zash@zash.se>
parents: 5740
diff changeset
218 archive_store.__index = archive_store
5969
0a3b8003ac9c mod_storage_sql2: Expose the unique key argument, allowing arbitrary ids. Conflicting items are removed.
Kim Alvefur <zash@zash.se>
parents: 5968
diff changeset
219 function archive_store:append(username, key, when, with, value)
0a3b8003ac9c mod_storage_sql2: Expose the unique key argument, allowing arbitrary ids. Conflicting items are removed.
Kim Alvefur <zash@zash.se>
parents: 5968
diff changeset
220 if value == nil then -- COMPAT early versions
0a3b8003ac9c mod_storage_sql2: Expose the unique key argument, allowing arbitrary ids. Conflicting items are removed.
Kim Alvefur <zash@zash.se>
parents: 5968
diff changeset
221 when, with, value, key = key, when, with, value
0a3b8003ac9c mod_storage_sql2: Expose the unique key argument, allowing arbitrary ids. Conflicting items are removed.
Kim Alvefur <zash@zash.se>
parents: 5968
diff changeset
222 end
5741
c7a664e496b3 mod_storage_sql2: Add archive store with append and find methods
Kim Alvefur <zash@zash.se>
parents: 5740
diff changeset
223 local user,store = username,self.store;
c7a664e496b3 mod_storage_sql2: Add archive store with append and find methods
Kim Alvefur <zash@zash.se>
parents: 5740
diff changeset
224 return engine:transaction(function()
5996
e7efa9703a3f mod_storage_sql2: Only attempt to delete conflicting items if an ID/key is given
Kim Alvefur <zash@zash.se>
parents: 5995
diff changeset
225 if key then
e7efa9703a3f mod_storage_sql2: Only attempt to delete conflicting items if an ID/key is given
Kim Alvefur <zash@zash.se>
parents: 5995
diff changeset
226 engine:delete("DELETE FROM `prosodyarchive` WHERE `host`=? AND `user`=? AND `store`=? AND `key`=?", host, user or "", store, key);
e7efa9703a3f mod_storage_sql2: Only attempt to delete conflicting items if an ID/key is given
Kim Alvefur <zash@zash.se>
parents: 5995
diff changeset
227 else
e7efa9703a3f mod_storage_sql2: Only attempt to delete conflicting items if an ID/key is given
Kim Alvefur <zash@zash.se>
parents: 5995
diff changeset
228 key = uuid.generate();
e7efa9703a3f mod_storage_sql2: Only attempt to delete conflicting items if an ID/key is given
Kim Alvefur <zash@zash.se>
parents: 5995
diff changeset
229 end
5741
c7a664e496b3 mod_storage_sql2: Add archive store with append and find methods
Kim Alvefur <zash@zash.se>
parents: 5740
diff changeset
230 local t, value = serialize(value);
c7a664e496b3 mod_storage_sql2: Add archive store with append and find methods
Kim Alvefur <zash@zash.se>
parents: 5740
diff changeset
231 engine:insert("INSERT INTO `prosodyarchive` (`host`, `user`, `store`, `when`, `with`, `key`, `type`, `value`) VALUES (?,?,?,?,?,?,?,?)", host, user or "", store, when, with, key, t, value);
c7a664e496b3 mod_storage_sql2: Add archive store with append and find methods
Kim Alvefur <zash@zash.se>
parents: 5740
diff changeset
232 return key;
c7a664e496b3 mod_storage_sql2: Add archive store with append and find methods
Kim Alvefur <zash@zash.se>
parents: 5740
diff changeset
233 end);
c7a664e496b3 mod_storage_sql2: Add archive store with append and find methods
Kim Alvefur <zash@zash.se>
parents: 5740
diff changeset
234 end
5847
6aaa7ad4463c mod_storage_sql2: Split out code for building WHERE clauses into separate functions
Kim Alvefur <zash@zash.se>
parents: 5776
diff changeset
235
6aaa7ad4463c mod_storage_sql2: Split out code for building WHERE clauses into separate functions
Kim Alvefur <zash@zash.se>
parents: 5776
diff changeset
236 -- Helpers for building the WHERE clause
6aaa7ad4463c mod_storage_sql2: Split out code for building WHERE clauses into separate functions
Kim Alvefur <zash@zash.se>
parents: 5776
diff changeset
237 local function archive_where(query, args, where)
6aaa7ad4463c mod_storage_sql2: Split out code for building WHERE clauses into separate functions
Kim Alvefur <zash@zash.se>
parents: 5776
diff changeset
238 -- Time range, inclusive
6aaa7ad4463c mod_storage_sql2: Split out code for building WHERE clauses into separate functions
Kim Alvefur <zash@zash.se>
parents: 5776
diff changeset
239 if query.start then
6aaa7ad4463c mod_storage_sql2: Split out code for building WHERE clauses into separate functions
Kim Alvefur <zash@zash.se>
parents: 5776
diff changeset
240 args[#args+1] = query.start
6aaa7ad4463c mod_storage_sql2: Split out code for building WHERE clauses into separate functions
Kim Alvefur <zash@zash.se>
parents: 5776
diff changeset
241 where[#where+1] = "`when` >= ?"
6aaa7ad4463c mod_storage_sql2: Split out code for building WHERE clauses into separate functions
Kim Alvefur <zash@zash.se>
parents: 5776
diff changeset
242 end
6aaa7ad4463c mod_storage_sql2: Split out code for building WHERE clauses into separate functions
Kim Alvefur <zash@zash.se>
parents: 5776
diff changeset
243
6aaa7ad4463c mod_storage_sql2: Split out code for building WHERE clauses into separate functions
Kim Alvefur <zash@zash.se>
parents: 5776
diff changeset
244 if query["end"] then
6aaa7ad4463c mod_storage_sql2: Split out code for building WHERE clauses into separate functions
Kim Alvefur <zash@zash.se>
parents: 5776
diff changeset
245 args[#args+1] = query["end"];
6aaa7ad4463c mod_storage_sql2: Split out code for building WHERE clauses into separate functions
Kim Alvefur <zash@zash.se>
parents: 5776
diff changeset
246 if query.start then
6aaa7ad4463c mod_storage_sql2: Split out code for building WHERE clauses into separate functions
Kim Alvefur <zash@zash.se>
parents: 5776
diff changeset
247 where[#where] = "`when` BETWEEN ? AND ?" -- is this inclusive?
6aaa7ad4463c mod_storage_sql2: Split out code for building WHERE clauses into separate functions
Kim Alvefur <zash@zash.se>
parents: 5776
diff changeset
248 else
5903
0e0aab930e10 mod_storage_sql2: Fix backwards comparison of timestamp
Kim Alvefur <zash@zash.se>
parents: 5894
diff changeset
249 where[#where+1] = "`when` <= ?"
5847
6aaa7ad4463c mod_storage_sql2: Split out code for building WHERE clauses into separate functions
Kim Alvefur <zash@zash.se>
parents: 5776
diff changeset
250 end
6aaa7ad4463c mod_storage_sql2: Split out code for building WHERE clauses into separate functions
Kim Alvefur <zash@zash.se>
parents: 5776
diff changeset
251 end
6aaa7ad4463c mod_storage_sql2: Split out code for building WHERE clauses into separate functions
Kim Alvefur <zash@zash.se>
parents: 5776
diff changeset
252
6aaa7ad4463c mod_storage_sql2: Split out code for building WHERE clauses into separate functions
Kim Alvefur <zash@zash.se>
parents: 5776
diff changeset
253 -- Related name
6aaa7ad4463c mod_storage_sql2: Split out code for building WHERE clauses into separate functions
Kim Alvefur <zash@zash.se>
parents: 5776
diff changeset
254 if query.with then
6aaa7ad4463c mod_storage_sql2: Split out code for building WHERE clauses into separate functions
Kim Alvefur <zash@zash.se>
parents: 5776
diff changeset
255 where[#where+1] = "`with` = ?";
6aaa7ad4463c mod_storage_sql2: Split out code for building WHERE clauses into separate functions
Kim Alvefur <zash@zash.se>
parents: 5776
diff changeset
256 args[#args+1] = query.with
6aaa7ad4463c mod_storage_sql2: Split out code for building WHERE clauses into separate functions
Kim Alvefur <zash@zash.se>
parents: 5776
diff changeset
257 end
6aaa7ad4463c mod_storage_sql2: Split out code for building WHERE clauses into separate functions
Kim Alvefur <zash@zash.se>
parents: 5776
diff changeset
258
6aaa7ad4463c mod_storage_sql2: Split out code for building WHERE clauses into separate functions
Kim Alvefur <zash@zash.se>
parents: 5776
diff changeset
259 -- Unique id
6aaa7ad4463c mod_storage_sql2: Split out code for building WHERE clauses into separate functions
Kim Alvefur <zash@zash.se>
parents: 5776
diff changeset
260 if query.key then
6aaa7ad4463c mod_storage_sql2: Split out code for building WHERE clauses into separate functions
Kim Alvefur <zash@zash.se>
parents: 5776
diff changeset
261 where[#where+1] = "`key` = ?";
6aaa7ad4463c mod_storage_sql2: Split out code for building WHERE clauses into separate functions
Kim Alvefur <zash@zash.se>
parents: 5776
diff changeset
262 args[#args+1] = query.key
6aaa7ad4463c mod_storage_sql2: Split out code for building WHERE clauses into separate functions
Kim Alvefur <zash@zash.se>
parents: 5776
diff changeset
263 end
6aaa7ad4463c mod_storage_sql2: Split out code for building WHERE clauses into separate functions
Kim Alvefur <zash@zash.se>
parents: 5776
diff changeset
264 end
6aaa7ad4463c mod_storage_sql2: Split out code for building WHERE clauses into separate functions
Kim Alvefur <zash@zash.se>
parents: 5776
diff changeset
265 local function archive_where_id_range(query, args, where)
5968
e1e9f1411442 mod_storage_sql2: Include user, host and store in id lookup
Kim Alvefur <zash@zash.se>
parents: 5913
diff changeset
266 local args_len = #args
5847
6aaa7ad4463c mod_storage_sql2: Split out code for building WHERE clauses into separate functions
Kim Alvefur <zash@zash.se>
parents: 5776
diff changeset
267 -- Before or after specific item, exclusive
6aaa7ad4463c mod_storage_sql2: Split out code for building WHERE clauses into separate functions
Kim Alvefur <zash@zash.se>
parents: 5776
diff changeset
268 if query.after then -- keys better be unique!
5985
98ed9fe368ac mod_storage_sql2: Fix SQL syntax
Kim Alvefur <zash@zash.se>
parents: 5979
diff changeset
269 where[#where+1] = "`sort_id` > (SELECT `sort_id` FROM `prosodyarchive` WHERE `key` = ? AND `host` = ? AND `user` = ? AND `store` = ? LIMIT 1)"
5968
e1e9f1411442 mod_storage_sql2: Include user, host and store in id lookup
Kim Alvefur <zash@zash.se>
parents: 5913
diff changeset
270 args[args_len+1], args[args_len+2], args[args_len+3], args[args_len+4] = query.after, args[1], args[2], args[3];
e1e9f1411442 mod_storage_sql2: Include user, host and store in id lookup
Kim Alvefur <zash@zash.se>
parents: 5913
diff changeset
271 args_len = args_len + 4
5847
6aaa7ad4463c mod_storage_sql2: Split out code for building WHERE clauses into separate functions
Kim Alvefur <zash@zash.se>
parents: 5776
diff changeset
272 end
6aaa7ad4463c mod_storage_sql2: Split out code for building WHERE clauses into separate functions
Kim Alvefur <zash@zash.se>
parents: 5776
diff changeset
273 if query.before then
5985
98ed9fe368ac mod_storage_sql2: Fix SQL syntax
Kim Alvefur <zash@zash.se>
parents: 5979
diff changeset
274 where[#where+1] = "`sort_id` < (SELECT `sort_id` FROM `prosodyarchive` WHERE `key` = ? AND `host` = ? AND `user` = ? AND `store` = ? LIMIT 1)"
5968
e1e9f1411442 mod_storage_sql2: Include user, host and store in id lookup
Kim Alvefur <zash@zash.se>
parents: 5913
diff changeset
275 args[args_len+1], args[args_len+2], args[args_len+3], args[args_len+4] = query.before, args[1], args[2], args[3];
5847
6aaa7ad4463c mod_storage_sql2: Split out code for building WHERE clauses into separate functions
Kim Alvefur <zash@zash.se>
parents: 5776
diff changeset
276 end
6aaa7ad4463c mod_storage_sql2: Split out code for building WHERE clauses into separate functions
Kim Alvefur <zash@zash.se>
parents: 5776
diff changeset
277 end
6aaa7ad4463c mod_storage_sql2: Split out code for building WHERE clauses into separate functions
Kim Alvefur <zash@zash.se>
parents: 5776
diff changeset
278
5741
c7a664e496b3 mod_storage_sql2: Add archive store with append and find methods
Kim Alvefur <zash@zash.se>
parents: 5740
diff changeset
279 function archive_store:find(username, query)
c7a664e496b3 mod_storage_sql2: Add archive store with append and find methods
Kim Alvefur <zash@zash.se>
parents: 5740
diff changeset
280 query = query or {};
c7a664e496b3 mod_storage_sql2: Add archive store with append and find methods
Kim Alvefur <zash@zash.se>
parents: 5740
diff changeset
281 local user,store = username,self.store;
c7a664e496b3 mod_storage_sql2: Add archive store with append and find methods
Kim Alvefur <zash@zash.se>
parents: 5740
diff changeset
282 local total;
c7a664e496b3 mod_storage_sql2: Add archive store with append and find methods
Kim Alvefur <zash@zash.se>
parents: 5740
diff changeset
283 local ok, result = engine:transaction(function()
c7a664e496b3 mod_storage_sql2: Add archive store with append and find methods
Kim Alvefur <zash@zash.se>
parents: 5740
diff changeset
284 local sql_query = "SELECT `key`, `type`, `value`, `when` FROM `prosodyarchive` WHERE %s ORDER BY `sort_id` %s%s;";
c7a664e496b3 mod_storage_sql2: Add archive store with append and find methods
Kim Alvefur <zash@zash.se>
parents: 5740
diff changeset
285 local args = { host, user or "", store, };
c7a664e496b3 mod_storage_sql2: Add archive store with append and find methods
Kim Alvefur <zash@zash.se>
parents: 5740
diff changeset
286 local where = { "`host` = ?", "`user` = ?", "`store` = ?", };
c7a664e496b3 mod_storage_sql2: Add archive store with append and find methods
Kim Alvefur <zash@zash.se>
parents: 5740
diff changeset
287
5847
6aaa7ad4463c mod_storage_sql2: Split out code for building WHERE clauses into separate functions
Kim Alvefur <zash@zash.se>
parents: 5776
diff changeset
288 archive_where(query, args, where);
5741
c7a664e496b3 mod_storage_sql2: Add archive store with append and find methods
Kim Alvefur <zash@zash.se>
parents: 5740
diff changeset
289
c7a664e496b3 mod_storage_sql2: Add archive store with append and find methods
Kim Alvefur <zash@zash.se>
parents: 5740
diff changeset
290 -- Total matching
c7a664e496b3 mod_storage_sql2: Add archive store with append and find methods
Kim Alvefur <zash@zash.se>
parents: 5740
diff changeset
291 if query.total then
c7a664e496b3 mod_storage_sql2: Add archive store with append and find methods
Kim Alvefur <zash@zash.se>
parents: 5740
diff changeset
292 local stats = engine:select(sql_query:gsub("^(SELECT).-(FROM)", "%1 COUNT(*) %2"):format(t_concat(where, " AND "), "DESC", ""), unpack(args));
c7a664e496b3 mod_storage_sql2: Add archive store with append and find methods
Kim Alvefur <zash@zash.se>
parents: 5740
diff changeset
293 if stats then
c7a664e496b3 mod_storage_sql2: Add archive store with append and find methods
Kim Alvefur <zash@zash.se>
parents: 5740
diff changeset
294 local _total = stats()
c7a664e496b3 mod_storage_sql2: Add archive store with append and find methods
Kim Alvefur <zash@zash.se>
parents: 5740
diff changeset
295 total = _total and _total[1];
c7a664e496b3 mod_storage_sql2: Add archive store with append and find methods
Kim Alvefur <zash@zash.se>
parents: 5740
diff changeset
296 end
c7a664e496b3 mod_storage_sql2: Add archive store with append and find methods
Kim Alvefur <zash@zash.se>
parents: 5740
diff changeset
297 if query.limit == 0 then -- Skip the real query
c7a664e496b3 mod_storage_sql2: Add archive store with append and find methods
Kim Alvefur <zash@zash.se>
parents: 5740
diff changeset
298 return noop, total;
c7a664e496b3 mod_storage_sql2: Add archive store with append and find methods
Kim Alvefur <zash@zash.se>
parents: 5740
diff changeset
299 end
c7a664e496b3 mod_storage_sql2: Add archive store with append and find methods
Kim Alvefur <zash@zash.se>
parents: 5740
diff changeset
300 end
c7a664e496b3 mod_storage_sql2: Add archive store with append and find methods
Kim Alvefur <zash@zash.se>
parents: 5740
diff changeset
301
5847
6aaa7ad4463c mod_storage_sql2: Split out code for building WHERE clauses into separate functions
Kim Alvefur <zash@zash.se>
parents: 5776
diff changeset
302 archive_where_id_range(query, args, where);
5741
c7a664e496b3 mod_storage_sql2: Add archive store with append and find methods
Kim Alvefur <zash@zash.se>
parents: 5740
diff changeset
303
c7a664e496b3 mod_storage_sql2: Add archive store with append and find methods
Kim Alvefur <zash@zash.se>
parents: 5740
diff changeset
304 if query.limit then
c7a664e496b3 mod_storage_sql2: Add archive store with append and find methods
Kim Alvefur <zash@zash.se>
parents: 5740
diff changeset
305 args[#args+1] = query.limit;
c7a664e496b3 mod_storage_sql2: Add archive store with append and find methods
Kim Alvefur <zash@zash.se>
parents: 5740
diff changeset
306 end
c7a664e496b3 mod_storage_sql2: Add archive store with append and find methods
Kim Alvefur <zash@zash.se>
parents: 5740
diff changeset
307
c7a664e496b3 mod_storage_sql2: Add archive store with append and find methods
Kim Alvefur <zash@zash.se>
parents: 5740
diff changeset
308 sql_query = sql_query:format(t_concat(where, " AND "), query.reverse and "DESC" or "ASC", query.limit and " LIMIT ?" or "");
c7a664e496b3 mod_storage_sql2: Add archive store with append and find methods
Kim Alvefur <zash@zash.se>
parents: 5740
diff changeset
309 module:log("debug", sql_query);
c7a664e496b3 mod_storage_sql2: Add archive store with append and find methods
Kim Alvefur <zash@zash.se>
parents: 5740
diff changeset
310 return engine:select(sql_query, unpack(args));
c7a664e496b3 mod_storage_sql2: Add archive store with append and find methods
Kim Alvefur <zash@zash.se>
parents: 5740
diff changeset
311 end);
c7a664e496b3 mod_storage_sql2: Add archive store with append and find methods
Kim Alvefur <zash@zash.se>
parents: 5740
diff changeset
312 if not ok then return ok, result end
c7a664e496b3 mod_storage_sql2: Add archive store with append and find methods
Kim Alvefur <zash@zash.se>
parents: 5740
diff changeset
313 return function()
c7a664e496b3 mod_storage_sql2: Add archive store with append and find methods
Kim Alvefur <zash@zash.se>
parents: 5740
diff changeset
314 local row = result();
c7a664e496b3 mod_storage_sql2: Add archive store with append and find methods
Kim Alvefur <zash@zash.se>
parents: 5740
diff changeset
315 if row ~= nil then
c7a664e496b3 mod_storage_sql2: Add archive store with append and find methods
Kim Alvefur <zash@zash.se>
parents: 5740
diff changeset
316 return row[1], deserialize(row[2], row[3]), row[4];
c7a664e496b3 mod_storage_sql2: Add archive store with append and find methods
Kim Alvefur <zash@zash.se>
parents: 5740
diff changeset
317 end
c7a664e496b3 mod_storage_sql2: Add archive store with append and find methods
Kim Alvefur <zash@zash.se>
parents: 5740
diff changeset
318 end, total;
c7a664e496b3 mod_storage_sql2: Add archive store with append and find methods
Kim Alvefur <zash@zash.se>
parents: 5740
diff changeset
319 end
c7a664e496b3 mod_storage_sql2: Add archive store with append and find methods
Kim Alvefur <zash@zash.se>
parents: 5740
diff changeset
320
5848
06156bfd4eaf mod_storage_sql2: Add method for deleting items from archives with same syntax as :find()
Kim Alvefur <zash@zash.se>
parents: 5847
diff changeset
321 function archive_store:delete(username, query)
06156bfd4eaf mod_storage_sql2: Add method for deleting items from archives with same syntax as :find()
Kim Alvefur <zash@zash.se>
parents: 5847
diff changeset
322 query = query or {};
06156bfd4eaf mod_storage_sql2: Add method for deleting items from archives with same syntax as :find()
Kim Alvefur <zash@zash.se>
parents: 5847
diff changeset
323 local user,store = username,self.store;
06156bfd4eaf mod_storage_sql2: Add method for deleting items from archives with same syntax as :find()
Kim Alvefur <zash@zash.se>
parents: 5847
diff changeset
324 return engine:transaction(function()
06156bfd4eaf mod_storage_sql2: Add method for deleting items from archives with same syntax as :find()
Kim Alvefur <zash@zash.se>
parents: 5847
diff changeset
325 local sql_query = "DELETE FROM `prosodyarchive` WHERE %s;";
06156bfd4eaf mod_storage_sql2: Add method for deleting items from archives with same syntax as :find()
Kim Alvefur <zash@zash.se>
parents: 5847
diff changeset
326 local args = { host, user or "", store, };
06156bfd4eaf mod_storage_sql2: Add method for deleting items from archives with same syntax as :find()
Kim Alvefur <zash@zash.se>
parents: 5847
diff changeset
327 local where = { "`host` = ?", "`user` = ?", "`store` = ?", };
06156bfd4eaf mod_storage_sql2: Add method for deleting items from archives with same syntax as :find()
Kim Alvefur <zash@zash.se>
parents: 5847
diff changeset
328 archive_where(query, args, where);
06156bfd4eaf mod_storage_sql2: Add method for deleting items from archives with same syntax as :find()
Kim Alvefur <zash@zash.se>
parents: 5847
diff changeset
329 archive_where_id_range(query, args, where);
06156bfd4eaf mod_storage_sql2: Add method for deleting items from archives with same syntax as :find()
Kim Alvefur <zash@zash.se>
parents: 5847
diff changeset
330 sql_query = sql_query:format(t_concat(where, " AND "));
06156bfd4eaf mod_storage_sql2: Add method for deleting items from archives with same syntax as :find()
Kim Alvefur <zash@zash.se>
parents: 5847
diff changeset
331 module:log("debug", sql_query);
06156bfd4eaf mod_storage_sql2: Add method for deleting items from archives with same syntax as :find()
Kim Alvefur <zash@zash.se>
parents: 5847
diff changeset
332 return engine:delete(sql_query, unpack(args));
06156bfd4eaf mod_storage_sql2: Add method for deleting items from archives with same syntax as :find()
Kim Alvefur <zash@zash.se>
parents: 5847
diff changeset
333 end);
06156bfd4eaf mod_storage_sql2: Add method for deleting items from archives with same syntax as :find()
Kim Alvefur <zash@zash.se>
parents: 5847
diff changeset
334 end
06156bfd4eaf mod_storage_sql2: Add method for deleting items from archives with same syntax as :find()
Kim Alvefur <zash@zash.se>
parents: 5847
diff changeset
335
5734
49f1fed6e25e mod_storage_sql2: Keep available store types in a table
Kim Alvefur <zash@zash.se>
parents: 5733
diff changeset
336 local stores = {
49f1fed6e25e mod_storage_sql2: Keep available store types in a table
Kim Alvefur <zash@zash.se>
parents: 5733
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337 keyval = keyval_store;
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338 archive = archive_store;
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339 };
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340
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341 local driver = {};
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342
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343 function driver:open(store, typ)
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344 local store_mt = stores[typ or "keyval"];
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345 if store_mt then
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346 return setmetatable({ store = store }, store_mt);
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347 end
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348 return nil, "unsupported-store";
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349 end
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350
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351 function driver:stores(username)
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352 local sql = "SELECT DISTINCT `store` FROM `prosody` WHERE `host`=? AND `user`" ..
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353 (username == true and "!=?" or "=?");
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354 if username == true or not username then
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355 username = "";
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356 end
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357 local ok, result = engine:transaction(function()
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358 return engine:select(sql, host, username);
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359 end);
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360 if not ok then return ok, result end
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361 return iterator(result);
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362 end
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363
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364 function driver:purge(username)
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365 return engine:transaction(function()
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366 local stmt,err = engine:delete("DELETE FROM `prosody` WHERE `host`=? AND `user`=?", host, username);
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367 return true,err;
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368 end);
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369 end
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370
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371 module:provides("storage", driver);
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372
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
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373