1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
|
-- ----------------------------------------------------------------------------------------
-- Copyright (C) 2004 MySQL AB
--
-- This program is free software; you can redistribute it and/or modify
-- it under the terms of the GNU General Public License as published by
-- the Free Software Foundation; either version 2 of the License, or
-- (at your option) any later version.
--
-- This program is distributed in the hope that it will be useful,
-- but WITHOUT ANY WARRANTY; without even the implied warranty of
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-- GNU General Public License for more details.
--
-- You should have received a copy of the GNU General Public License
-- along with this program; if not, write to the Free Software
-- Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
-- ----------------------------------------------------------------------------------------
-- ----------------------------------------------------------------------------------------
-- @file BaseLua.lua
-- @brief Module that contains base functionality for Lua
-- ----------------------------------------------------------------------------------------
-- ----------------------------------------------------------------------------------------
-- @brief Returns the information about this module
--
-- Every Grt module has to implement this function to return information about the
-- module. Note that new functions that should be exposed to the Grt have to be listed
-- here. Function that are not exposed should start with a underscore.
--
-- @return A dict that contains the name and the function names of the module
-- ----------------------------------------------------------------------------------------
function getModuleInfo()
local moduleInfo=
{
name= 'Rdbms',
functions= {
'connect::',
'close::'
},
extends= ''
}
return moduleInfo
end
-- ----------------------------------------------------------------------------------------
-- @brief Opens a connection to a database
--
-- Opens a connection to a database
--
-- @return the connection object
-- ----------------------------------------------------------------------------------------
function connect(args)
local conn
local connGlobalString= ""
if grtV.getn(args) == 1 then
if type(grtV.toLua(args[1])) == "string" then
connGlobalString= grtV.toLua(args[1])
conn= grtV.getGlobal(string.sub(connGlobalString, 9))
else
conn= args[1]
end
elseif grtV.getn(args) == 3 then
local name= grtV.toLua(args[1])
local rdbmsType= grtV.toLua(args[2])
local params= grtV.toLua(args[3])
local driver
conn= grtV.newObj("db.mgmt.Connection", name, "", "")
driver= RdbmsManagement:getDefaultDriverByName({rdbmsType})
if driver == nil then
return grt.error(string.format(_("There is no rdbms available with the name %s"), rdbmsType))
end
conn.driver= driver
conn.modules= grtV.duplicate(conn.driver.defaultModules)
conn.parameterValues= params
grtV.lookupAdd(conn)
else
return grt.error(_("This function takes (db.mgmt.Connection) or " ..
"(name, rdbmsType, {params}) as parameters."))
end
-- get query module
local queryModule= conn.modules.QueryModule
if queryModule == nil then
queryModule= conn.driver.defaultModules.QueryModule
end
if queryModule == nil then
return grt.error(_("The connection does not have a query module."))
end
-- call query module function to open the database connection
if connGlobalString ~= "" then
conn= grtM.callFunction(grtV.toLua(queryModule), "connOpen", {connGlobalString})
else
conn= grtM.callFunction(grtV.toLua(queryModule), "connOpen", {conn})
end
if grtError ~= nil then
return grtError
end
return grt.success(conn)
end
-- ----------------------------------------------------------------------------------------
-- @brief Closes the connection to a database
--
-- Close the connection to a database
--
-- @return success or error
-- ----------------------------------------------------------------------------------------
function close(args)
local conn
if grtV.getn(args) == 1 then
conn= args[1]
else
return grt.error(_("This function takes (db.mgmt.Connection) as parameter."))
end
-- get query module
local queryModule= conn.modules.QueryModule
if queryModule == nil then
queryModule= conn.driver.defaultModules.QueryModule
end
if queryModule == nil then
return grt.error(_("The connection does not have a query module."))
end
-- call query module function to close the database connection
conn= grtM.callFunction(grtV.toLua(queryModule), "connClose", {conn})
if grtError ~= nil then
return grtError
end
return grt.success()
end
|
