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-rw-r--r--plugins/storage/sqlbasic.lib.lua97
1 files changed, 0 insertions, 97 deletions
diff --git a/plugins/storage/sqlbasic.lib.lua b/plugins/storage/sqlbasic.lib.lua
deleted file mode 100644
index ab3648f9..00000000
--- a/plugins/storage/sqlbasic.lib.lua
+++ /dev/null
@@ -1,97 +0,0 @@
-
--- Basic SQL driver
--- This driver stores data as simple key-values
-
-local ser = require "util.serialization".serialize;
-local envload = require "util.envload".envload;
-local deser = function(data)
- module:log("debug", "deser: %s", tostring(data));
- if not data then return nil; end
- local f = envload("return "..data, nil, {});
- if not f then return nil; end
- local s, d = pcall(f);
- if not s then return nil; end
- return d;
-end;
-
-local driver = {};
-driver.__index = driver;
-
-driver.item_table = "item";
-driver.list_table = "list";
-
-function driver:prepare(sql)
- module:log("debug", "query: %s", sql);
- local err;
- if not self.sqlcache then self.sqlcache = {}; end
- local r = self.sqlcache[sql];
- if r then return r; end
- r, err = self.connection:prepare(sql);
- if not r then error("Unable to prepare SQL statement: "..err); end
- self.sqlcache[sql] = r;
- return r;
-end
-
-function driver:load(username, host, datastore)
- local select = self:prepare("select data from "..self.item_table.." where username=? and host=? and datastore=?");
- select:execute(username, host, datastore);
- local row = select:fetch();
- return row and deser(row[1]) or nil;
-end
-
-function driver:store(username, host, datastore, data)
- if not data or next(data) == nil then
- local delete = self:prepare("delete from "..self.item_table.." where username=? and host=? and datastore=?");
- delete:execute(username, host, datastore);
- return true;
- else
- local d = self:load(username, host, datastore);
- if d then -- update
- local update = self:prepare("update "..self.item_table.." set data=? where username=? and host=? and datastore=?");
- return update:execute(ser(data), username, host, datastore);
- else -- insert
- local insert = self:prepare("insert into "..self.item_table.." values (?, ?, ?, ?)");
- return insert:execute(username, host, datastore, ser(data));
- end
- end
-end
-
-function driver:list_append(username, host, datastore, data)
- if not data then return; end
- local insert = self:prepare("insert into "..self.list_table.." values (?, ?, ?, ?)");
- return insert:execute(username, host, datastore, ser(data));
-end
-
-function driver:list_store(username, host, datastore, data)
- -- remove existing data
- local delete = self:prepare("delete from "..self.list_table.." where username=? and host=? and datastore=?");
- delete:execute(username, host, datastore);
- if data and next(data) ~= nil then
- -- add data
- for _, d in ipairs(data) do
- self:list_append(username, host, datastore, ser(d));
- end
- end
- return true;
-end
-
-function driver:list_load(username, host, datastore)
- local select = self:prepare("select data from "..self.list_table.." where username=? and host=? and datastore=?");
- select:execute(username, host, datastore);
- local r = {};
- for row in select:rows() do
- table.insert(r, deser(row[1]));
- end
- return r;
-end
-
-local _M = {};
-function _M.new(dbtype, dbname, ...)
- local d = {};
- setmetatable(d, driver);
- local dbh = get_database(dbtype, dbname, ...);
- --d:set_connection(dbh);
- d.connection = dbh;
- return d;
-end
-return _M;