root / pykota / trunk / pykota / storages / pgstorage.py @ 1257

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Copyright year changed.

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1# PyKota
2# -*- coding: ISO-8859-15 -*-
3#
4# PyKota : Print Quotas for CUPS and LPRng
5#
6# (c) 2003-2004 Jerome Alet <alet@librelogiciel.com>
7# This program is free software; you can redistribute it and/or modify
8# it under the terms of the GNU General Public License as published by
9# the Free Software Foundation; either version 2 of the License, or
10# (at your option) any later version.
11#
12# This program is distributed in the hope that it will be useful,
13# but WITHOUT ANY WARRANTY; without even the implied warranty of
14# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15# GNU General Public License for more details.
16#
17# You should have received a copy of the GNU General Public License
18# along with this program; if not, write to the Free Software
19# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
20#
21# $Id$
22#
23# $Log$
24# Revision 1.28  2004/01/08 14:10:33  jalet
25# Copyright year changed.
26#
27# Revision 1.27  2004/01/06 14:24:59  jalet
28# Printer groups should be cached now, if caching is enabled.
29#
30# Revision 1.26  2003/12/29 14:12:48  uid67467
31# Tries to workaround possible integrity violations when retrieving printer groups
32#
33# Revision 1.25  2003/12/27 16:49:25  uid67467
34# Should be ok now.
35#
36# Revision 1.24  2003/11/29 22:02:14  jalet
37# Don't try to retrieve the user print quota information if current printer
38# doesn't exist.
39#
40# Revision 1.23  2003/11/23 19:01:37  jalet
41# Job price added to history
42#
43# Revision 1.22  2003/11/21 14:28:46  jalet
44# More complete job history.
45#
46# Revision 1.21  2003/11/12 13:06:38  jalet
47# Bug fix wrt no user/group name command line argument to edpykota
48#
49# Revision 1.20  2003/10/09 21:25:26  jalet
50# Multiple printer names or wildcards can be passed on the command line
51# separated with commas.
52# Beta phase.
53#
54# Revision 1.19  2003/10/08 07:01:20  jalet
55# Job history can be disabled.
56# Some typos in README.
57# More messages in setup script.
58#
59# Revision 1.18  2003/10/07 09:07:30  jalet
60# Character encoding added to please latest version of Python
61#
62# Revision 1.17  2003/10/06 13:12:28  jalet
63# More work on caching
64#
65# Revision 1.16  2003/10/03 18:01:49  jalet
66# Nothing interesting...
67#
68# Revision 1.15  2003/10/03 12:27:03  jalet
69# Several optimizations, especially with LDAP backend
70#
71# Revision 1.14  2003/10/03 08:57:55  jalet
72# Caching mechanism now caches all that's cacheable.
73#
74# Revision 1.13  2003/10/02 20:23:18  jalet
75# Storage caching mechanism added.
76#
77# Revision 1.12  2003/08/17 14:20:25  jalet
78# Bug fix by Oleg Biteryakov
79#
80# Revision 1.11  2003/07/29 20:55:17  jalet
81# 1.14 is out !
82#
83# Revision 1.10  2003/07/16 21:53:08  jalet
84# Really big modifications wrt new configuration file's location and content.
85#
86# Revision 1.9  2003/07/14 17:20:15  jalet
87# Bug in postgresql storage when modifying the prices for a printer
88#
89# Revision 1.8  2003/07/14 14:18:17  jalet
90# Wrong documentation strings
91#
92# Revision 1.7  2003/07/09 20:17:07  jalet
93# Email field added to PostgreSQL schema
94#
95# Revision 1.6  2003/07/07 11:49:24  jalet
96# Lots of small fixes with the help of PyChecker
97#
98# Revision 1.5  2003/07/07 08:33:19  jalet
99# Bug fix due to a typo in LDAP code
100#
101# Revision 1.4  2003/06/30 13:54:21  jalet
102# Sorts by user / group name
103#
104# Revision 1.3  2003/06/25 14:10:01  jalet
105# Hey, it may work (edpykota --reset excepted) !
106#
107# Revision 1.2  2003/06/12 21:09:57  jalet
108# wrongly placed code.
109#
110# Revision 1.1  2003/06/10 16:37:54  jalet
111# Deletion of the second user which is not needed anymore.
112# Added a debug configuration field in /etc/pykota.conf
113# All queries can now be sent to the logger in debug mode, this will
114# greatly help improve performance when time for this will come.
115#
116#
117#
118#
119
120from pykota.storage import PyKotaStorageError,BaseStorage,StorageObject,StorageUser,StorageGroup,StoragePrinter,StorageLastJob,StorageUserPQuota,StorageGroupPQuota
121
122try :
123    import pg
124except ImportError :   
125    import sys
126    # TODO : to translate or not to translate ?
127    raise PyKotaStorageError, "This python version (%s) doesn't seem to have the PygreSQL module installed correctly." % sys.version.split()[0]
128
129class Storage(BaseStorage) :
130    def __init__(self, pykotatool, host, dbname, user, passwd) :
131        """Opens the PostgreSQL database connection."""
132        BaseStorage.__init__(self, pykotatool)
133        try :
134            (host, port) = host.split(":")
135            port = int(port)
136        except ValueError :   
137            port = -1         # Use PostgreSQL's default tcp/ip port (5432).
138       
139        try :
140            self.database = pg.connect(host=host, port=port, dbname=dbname, user=user, passwd=passwd)
141        except pg.error, msg :
142            raise PyKotaStorageError, msg
143        else :   
144            self.closed = 0
145            self.tool.logdebug("Database opened (host=%s, port=%s, dbname=%s, user=%s)" % (host, port, dbname, user))
146           
147    def close(self) :   
148        """Closes the database connection."""
149        if not self.closed :
150            self.database.close()
151            self.closed = 1
152            self.tool.logdebug("Database closed.")
153       
154    def beginTransaction(self) :   
155        """Starts a transaction."""
156        self.database.query("BEGIN;")
157        self.tool.logdebug("Transaction begins...")
158       
159    def commitTransaction(self) :   
160        """Commits a transaction."""
161        self.database.query("COMMIT;")
162        self.tool.logdebug("Transaction committed.")
163       
164    def rollbackTransaction(self) :     
165        """Rollbacks a transaction."""
166        self.database.query("ROLLBACK;")
167        self.tool.logdebug("Transaction aborted.")
168       
169    def doSearch(self, query) :
170        """Does a search query."""
171        query = query.strip()   
172        if not query.endswith(';') :   
173            query += ';'
174        try :
175            self.tool.logdebug("QUERY : %s" % query)
176            result = self.database.query(query)
177        except pg.error, msg :   
178            raise PyKotaStorageError, msg
179        else :   
180            if (result is not None) and (result.ntuples() > 0) : 
181                return result.dictresult()
182           
183    def doModify(self, query) :
184        """Does a (possibly multiple) modify query."""
185        query = query.strip()   
186        if not query.endswith(';') :   
187            query += ';'
188        try :
189            self.tool.logdebug("QUERY : %s" % query)
190            result = self.database.query(query)
191        except pg.error, msg :   
192            raise PyKotaStorageError, msg
193        else :   
194            return result
195           
196    def doQuote(self, field) :
197        """Quotes a field for use as a string in SQL queries."""
198        if type(field) == type(0.0) : 
199            typ = "decimal"
200        elif type(field) == type(0) :   
201            typ = "int"
202        else :   
203            typ = "text"
204        return pg._quote(field, typ)
205       
206    def getAllUsersNames(self) :   
207        """Extracts all user names."""
208        usernames = []
209        result = self.doSearch("SELECT username FROM users;")
210        if result :
211            usernames = [record["username"] for record in result]
212        return usernames
213       
214    def getAllGroupsNames(self) :   
215        """Extracts all group names."""
216        groupnames = []
217        result = self.doSearch("SELECT groupname FROM groups;")
218        if result :
219            groupnames = [record["groupname"] for record in result]
220        return groupnames
221       
222    def getUserFromBackend(self, username) :   
223        """Extracts user information given its name."""
224        user = StorageUser(self, username)
225        result = self.doSearch("SELECT * FROM users WHERE username=%s LIMIT 1" % self.doQuote(username))
226        if result :
227            fields = result[0]
228            user.ident = fields.get("id")
229            user.LimitBy = fields.get("limitby")
230            user.AccountBalance = fields.get("balance")
231            user.LifeTimePaid = fields.get("lifetimepaid")
232            user.Email = fields.get("email")
233            user.Exists = 1
234        return user
235       
236    def getGroupFromBackend(self, groupname) :   
237        """Extracts group information given its name."""
238        group = StorageGroup(self, groupname)
239        result = self.doSearch("SELECT * FROM groups WHERE groupname=%s LIMIT 1" % self.doQuote(groupname))
240        if result :
241            fields = result[0]
242            group.ident = fields.get("id")
243            group.LimitBy = fields.get("limitby")
244            result = self.doSearch("SELECT SUM(balance) AS balance, SUM(lifetimepaid) AS lifetimepaid FROM users WHERE id IN (SELECT userid FROM groupsmembers WHERE groupid=%s)" % self.doQuote(group.ident))
245            if result :
246                fields = result[0]
247                group.AccountBalance = fields.get("balance")
248                group.LifeTimePaid = fields.get("lifetimepaid")
249            group.Exists = 1
250        return group
251       
252    def getPrinterFromBackend(self, printername) :       
253        """Extracts printer information given its name."""
254        printer = StoragePrinter(self, printername)
255        result = self.doSearch("SELECT * FROM printers WHERE printername=%s LIMIT 1" % self.doQuote(printername))
256        if result :
257            fields = result[0]
258            printer.ident = fields.get("id")
259            printer.PricePerJob = fields.get("priceperjob")
260            printer.PricePerPage = fields.get("priceperpage")
261            printer.LastJob = self.getPrinterLastJob(printer)
262            printer.Exists = 1
263        return printer   
264       
265    def getUserPQuotaFromBackend(self, user, printer) :       
266        """Extracts a user print quota."""
267        userpquota = StorageUserPQuota(self, user, printer)
268        if printer.Exists and user.Exists :
269            result = self.doSearch("SELECT id, lifepagecounter, pagecounter, softlimit, hardlimit, datelimit FROM userpquota WHERE userid=%s AND printerid=%s" % (self.doQuote(user.ident), self.doQuote(printer.ident)))
270            if result :
271                fields = result[0]
272                userpquota.ident = fields.get("id")
273                userpquota.PageCounter = fields.get("pagecounter")
274                userpquota.LifePageCounter = fields.get("lifepagecounter")
275                userpquota.SoftLimit = fields.get("softlimit")
276                userpquota.HardLimit = fields.get("hardlimit")
277                userpquota.DateLimit = fields.get("datelimit")
278                userpquota.Exists = 1
279        return userpquota
280       
281    def getGroupPQuotaFromBackend(self, group, printer) :       
282        """Extracts a group print quota."""
283        grouppquota = StorageGroupPQuota(self, group, printer)
284        if group.Exists :
285            result = self.doSearch("SELECT id, softlimit, hardlimit, datelimit FROM grouppquota WHERE groupid=%s AND printerid=%s" % (self.doQuote(group.ident), self.doQuote(printer.ident)))
286            if result :
287                fields = result[0]
288                grouppquota.ident = fields.get("id")
289                grouppquota.SoftLimit = fields.get("softlimit")
290                grouppquota.HardLimit = fields.get("hardlimit")
291                grouppquota.DateLimit = fields.get("datelimit")
292                result = self.doSearch("SELECT SUM(lifepagecounter) AS lifepagecounter, SUM(pagecounter) AS pagecounter FROM userpquota WHERE printerid=%s AND userid IN (SELECT userid FROM groupsmembers WHERE groupid=%s)" % (self.doQuote(printer.ident), self.doQuote(group.ident)))
293                if result :
294                    fields = result[0]
295                    grouppquota.PageCounter = fields.get("pagecounter")
296                    grouppquota.LifePageCounter = fields.get("lifepagecounter")
297                grouppquota.Exists = 1
298        return grouppquota
299       
300    def getPrinterLastJobFromBackend(self, printer) :       
301        """Extracts a printer's last job information."""
302        lastjob = StorageLastJob(self, printer)
303        result = self.doSearch("SELECT jobhistory.id, jobid, userid, username, pagecounter, jobsize, jobprice, filename, title, copies, options, jobdate FROM jobhistory, users WHERE printerid=%s AND userid=users.id ORDER BY jobdate DESC LIMIT 1" % self.doQuote(printer.ident))
304        if result :
305            fields = result[0]
306            lastjob.ident = fields.get("id")
307            lastjob.JobId = fields.get("jobid")
308            lastjob.User = self.getUser(fields.get("username"))
309            lastjob.PrinterPageCounter = fields.get("pagecounter")
310            lastjob.JobSize = fields.get("jobsize")
311            lastjob.JobPrice = fields.get("jobprice")
312            lastjob.JobAction = fields.get("action")
313            lastjob.JobFileName = fields.get("filename")
314            lastjob.JobTitle = fields.get("title")
315            lastjob.JobCopies = fields.get("copies")
316            lastjob.JobOptions = fields.get("options")
317            lastjob.JobDate = fields.get("jobdate")
318            lastjob.Exists = 1
319        return lastjob
320           
321    def getGroupMembersFromBackend(self, group) :       
322        """Returns the group's members list."""
323        groupmembers = []
324        result = self.doSearch("SELECT * FROM groupsmembers JOIN users ON groupsmembers.userid=users.id WHERE groupid=%s" % self.doQuote(group.ident))
325        if result :
326            for record in result :
327                user = StorageUser(self, record.get("username"))
328                user.ident = record.get("userid")
329                user.LimitBy = record.get("limitby")
330                user.AccountBalance = record.get("balance")
331                user.LifeTimePaid = record.get("lifetimepaid")
332                user.Email = record.get("email")
333                user.Exists = 1
334                groupmembers.append(user)
335                self.cacheEntry("USERS", user.Name, user)
336        return groupmembers       
337       
338    def getUserGroupsFromBackend(self, user) :       
339        """Returns the user's groups list."""
340        groups = []
341        result = self.doSearch("SELECT groupname FROM groupsmembers JOIN groups ON groupsmembers.groupid=groups.id WHERE userid=%s" % self.doQuote(user.ident))
342        if result :
343            for record in result :
344                groups.append(self.getGroup(record.get("groupname")))
345        return groups       
346       
347    def getParentPrintersFromBackend(self, printer) :   
348        """Get all the printer groups this printer is a member of."""
349        pgroups = []
350        result = self.doSearch("SELECT groupid,printername FROM printergroupsmembers JOIN printers ON groupid=id WHERE printerid=%s;" % self.doQuote(printer.ident))
351        if result :
352            for record in result :
353                if record["groupid"] != printer.ident : # in case of integrity violation
354                    parentprinter = self.getPrinter(record.get("printername"))
355                    if parentprinter.Exists :
356                        pgroups.append(parentprinter)
357        return pgroups
358       
359    def getMatchingPrinters(self, printerpattern) :
360        """Returns the list of all printers for which name matches a certain pattern."""
361        printers = []
362        # We 'could' do a SELECT printername FROM printers WHERE printername LIKE ...
363        # but we don't because other storages semantics may be different, so every
364        # storage should use fnmatch to match patterns and be storage agnostic
365        result = self.doSearch("SELECT * FROM printers")
366        if result :
367            for record in result :
368                if self.tool.matchString(record["printername"], printerpattern.split(",")) :
369                    printer = StoragePrinter(self, record["printername"])
370                    printer.ident = record.get("id")
371                    printer.PricePerJob = record.get("priceperjob")
372                    printer.PricePerPage = record.get("priceperpage")
373                    printer.LastJob = self.getPrinterLastJob(printer)
374                    printer.Exists = 1
375                    printers.append(printer)
376                    self.cacheEntry("PRINTERS", printer.Name, printer)
377        return printers       
378       
379    def getPrinterUsersAndQuotas(self, printer, names=["*"]) :       
380        """Returns the list of users who uses a given printer, along with their quotas."""
381        usersandquotas = []
382        result = self.doSearch("SELECT users.id as uid,username,balance,lifetimepaid,limitby,email,userpquota.id,lifepagecounter,pagecounter,softlimit,hardlimit,datelimit FROM users JOIN userpquota ON users.id=userpquota.userid AND printerid=%s ORDER BY username ASC" % self.doQuote(printer.ident))
383        if result :
384            for record in result :
385                if self.tool.matchString(record.get("username"), names) :
386                    user = StorageUser(self, record.get("username"))
387                    user.ident = record.get("uid")
388                    user.LimitBy = record.get("limitby")
389                    user.AccountBalance = record.get("balance")
390                    user.LifeTimePaid = record.get("lifetimepaid")
391                    user.Email = record.get("email") 
392                    user.Exists = 1
393                    userpquota = StorageUserPQuota(self, user, printer)
394                    userpquota.ident = record.get("id")
395                    userpquota.PageCounter = record.get("pagecounter")
396                    userpquota.LifePageCounter = record.get("lifepagecounter")
397                    userpquota.SoftLimit = record.get("softlimit")
398                    userpquota.HardLimit = record.get("hardlimit")
399                    userpquota.DateLimit = record.get("datelimit")
400                    userpquota.Exists = 1
401                    usersandquotas.append((user, userpquota))
402                    self.cacheEntry("USERS", user.Name, user)
403                    self.cacheEntry("USERPQUOTAS", "%s@%s" % (user.Name, printer.Name), userpquota)
404        return usersandquotas
405               
406    def getPrinterGroupsAndQuotas(self, printer, names=["*"]) :       
407        """Returns the list of groups which uses a given printer, along with their quotas."""
408        groupsandquotas = []
409        result = self.doSearch("SELECT groupname FROM groups JOIN grouppquota ON groups.id=grouppquota.groupid AND printerid=%s ORDER BY groupname ASC" % self.doQuote(printer.ident))
410        if result :
411            for record in result :
412                if self.tool.matchString(record.get("groupname"), names) :
413                    group = self.getGroup(record.get("groupname"))
414                    grouppquota = self.getGroupPQuota(group, printer)
415                    groupsandquotas.append((group, grouppquota))
416        return groupsandquotas
417       
418    def addPrinter(self, printername) :       
419        """Adds a printer to the quota storage, returns it."""
420        self.doModify("INSERT INTO printers (printername) VALUES (%s)" % self.doQuote(printername))
421        return self.getPrinter(printername)
422       
423    def addUser(self, user) :       
424        """Adds a user to the quota storage, returns its id."""
425        self.doModify("INSERT INTO users (username, limitby, balance, lifetimepaid, email) VALUES (%s, %s, %s, %s, %s)" % (self.doQuote(user.Name), self.doQuote(user.LimitBy), self.doQuote(user.AccountBalance), self.doQuote(user.LifeTimePaid), self.doQuote(user.Email)))
426        return self.getUser(user.Name)
427       
428    def addGroup(self, group) :       
429        """Adds a group to the quota storage, returns its id."""
430        self.doModify("INSERT INTO groups (groupname, limitby) VALUES (%s, %s)" % (self.doQuote(group.Name), self.doQuote(group.LimitBy)))
431        return self.getGroup(group.Name)
432
433    def addUserToGroup(self, user, group) :   
434        """Adds an user to a group."""
435        result = self.doSearch("SELECT COUNT(*) AS mexists FROM groupsmembers WHERE groupid=%s AND userid=%s" % (self.doQuote(group.ident), self.doQuote(user.ident)))
436        try :
437            mexists = int(result[0].get("mexists"))
438        except (IndexError, TypeError) :   
439            mexists = 0
440        if not mexists :   
441            self.doModify("INSERT INTO groupsmembers (groupid, userid) VALUES (%s, %s)" % (self.doQuote(group.ident), self.doQuote(user.ident)))
442           
443    def addUserPQuota(self, user, printer) :
444        """Initializes a user print quota on a printer."""
445        self.doModify("INSERT INTO userpquota (userid, printerid) VALUES (%s, %s)" % (self.doQuote(user.ident), self.doQuote(printer.ident)))
446        return self.getUserPQuota(user, printer)
447       
448    def addGroupPQuota(self, group, printer) :
449        """Initializes a group print quota on a printer."""
450        self.doModify("INSERT INTO grouppquota (groupid, printerid) VALUES (%s, %s)" % (self.doQuote(group.ident), self.doQuote(printer.ident)))
451        return self.getGroupPQuota(group, printer)
452       
453    def writePrinterPrices(self, printer) :   
454        """Write the printer's prices back into the storage."""
455        self.doModify("UPDATE printers SET priceperpage=%s, priceperjob=%s WHERE id=%s" % (self.doQuote(printer.PricePerPage), self.doQuote(printer.PricePerJob), self.doQuote(printer.ident)))
456       
457    def writeUserLimitBy(self, user, limitby) :   
458        """Sets the user's limiting factor."""
459        self.doModify("UPDATE users SET limitby=%s WHERE id=%s" % (self.doQuote(limitby), self.doQuote(user.ident)))
460       
461    def writeGroupLimitBy(self, group, limitby) :   
462        """Sets the group's limiting factor."""
463        self.doModify("UPDATE groups SET limitby=%s WHERE id=%s" % (self.doQuote(limitby), self.doQuote(group.ident)))
464       
465    def writeUserPQuotaDateLimit(self, userpquota, datelimit) :   
466        """Sets the date limit permanently for a user print quota."""
467        self.doModify("UPDATE userpquota SET datelimit=%s WHERE id=%s" % (self.doQuote(datelimit), self.doQuote(userpquota.ident)))
468           
469    def writeGroupPQuotaDateLimit(self, grouppquota, datelimit) :   
470        """Sets the date limit permanently for a group print quota."""
471        self.doModify("UPDATE grouppquota SET datelimit=%s WHERE id=%s" % (self.doQuote(datelimit), self.doQuote(grouppquota.ident)))
472       
473    def writeUserPQuotaPagesCounters(self, userpquota, newpagecounter, newlifepagecounter) :   
474       """Sets the new page counters permanently for a user print quota."""
475       self.doModify("UPDATE userpquota SET pagecounter=%s,lifepagecounter=%s WHERE id=%s" % (self.doQuote(newpagecounter), self.doQuote(newlifepagecounter), self.doQuote(userpquota.ident)))
476       
477    def writeUserAccountBalance(self, user, newbalance, newlifetimepaid=None) :   
478       """Sets the new account balance and eventually new lifetime paid."""
479       if newlifetimepaid is not None :
480           self.doModify("UPDATE users SET balance=%s, lifetimepaid=%s WHERE id=%s" % (self.doQuote(newbalance), self.doQuote(newlifetimepaid), self.doQuote(user.ident)))
481       else :   
482           self.doModify("UPDATE users SET balance=%s WHERE id=%s" % (self.doQuote(newbalance), self.doQuote(user.ident)))
483           
484    def writeLastJobSize(self, lastjob, jobsize, jobprice) :       
485        """Sets the last job's size permanently."""
486        self.doModify("UPDATE jobhistory SET jobsize=%s, jobprice=%s WHERE id=%s" % (self.doQuote(jobsize), self.doQuote(jobprice), self.doQuote(lastjob.ident)))
487       
488    def writeJobNew(self, printer, user, jobid, pagecounter, action, jobsize=None, jobprice=None, filename=None, title=None, copies=None, options=None) :   
489        """Adds a job in a printer's history."""
490        if (not self.disablehistory) or (not printer.LastJob.Exists) :
491            if jobsize is not None :
492                self.doModify("INSERT INTO jobhistory (userid, printerid, jobid, pagecounter, action, jobsize, jobprice, filename, title, copies, options) VALUES (%s, %s, %s, %s, %s, %s, %s, %s, %s, %s, %s)" % (self.doQuote(user.ident), self.doQuote(printer.ident), self.doQuote(jobid), self.doQuote(pagecounter), self.doQuote(action), self.doQuote(jobsize), self.doQuote(jobprice), self.doQuote(filename), self.doQuote(title), self.doQuote(copies), self.doQuote(options)))
493            else :   
494                self.doModify("INSERT INTO jobhistory (userid, printerid, jobid, pagecounter, action, filename, title, copies, options) VALUES (%s, %s, %s, %s, %s, %s, %s, %s, %s)" % (self.doQuote(user.ident), self.doQuote(printer.ident), self.doQuote(jobid), self.doQuote(pagecounter), self.doQuote(action), self.doQuote(filename), self.doQuote(title), self.doQuote(copies), self.doQuote(options)))
495        else :       
496            # here we explicitly want to reset jobsize to NULL if needed
497            self.doModify("UPDATE jobhistory SET userid=%s, jobid=%s, pagecounter=%s, action=%s, jobsize=%s, jobprice=%s, filename=%s, title=%s, copies=%s, options=%s, jobdate=now() WHERE id=%s;" % (self.doQuote(user.ident), self.doQuote(jobid), self.doQuote(pagecounter), self.doQuote(action), self.doQuote(jobsize), self.doQuote(jobprice), self.doQuote(filename), self.doQuote(title), self.doQuote(copies), self.doQuote(options), self.doQuote(printer.LastJob.ident)))
498           
499    def writeUserPQuotaLimits(self, userpquota, softlimit, hardlimit) :
500        """Sets soft and hard limits for a user quota."""
501        self.doModify("UPDATE userpquota SET softlimit=%s, hardlimit=%s, datelimit=NULL WHERE id=%s" % (self.doQuote(softlimit), self.doQuote(hardlimit), self.doQuote(userpquota.ident)))
502       
503    def writeGroupPQuotaLimits(self, grouppquota, softlimit, hardlimit) :
504        """Sets soft and hard limits for a group quota on a specific printer."""
505        self.doModify("UPDATE grouppquota SET softlimit=%s, hardlimit=%s, datelimit=NULL WHERE id=%s" % (self.doQuote(softlimit), self.doQuote(hardlimit), self.doQuote(grouppquota.ident)))
506
507    def deleteUser(self, user) :   
508        """Completely deletes an user from the Quota Storage."""
509        # TODO : What should we do if we delete the last person who used a given printer ?
510        # TODO : we can't reassign the last job to the previous one, because next user would be
511        # TODO : incorrectly charged (overcharged).
512        for q in [ 
513                    "DELETE FROM groupsmembers WHERE userid=%s" % self.doQuote(user.ident),
514                    "DELETE FROM jobhistory WHERE userid=%s" % self.doQuote(user.ident),
515                    "DELETE FROM userpquota WHERE userid=%s" % self.doQuote(user.ident),
516                    "DELETE FROM users WHERE id=%s" % self.doQuote(user.ident),
517                  ] :
518            self.doModify(q)
519       
520    def deleteGroup(self, group) :   
521        """Completely deletes a group from the Quota Storage."""
522        for q in [
523                   "DELETE FROM groupsmembers WHERE groupid=%s" % self.doQuote(group.ident),
524                   "DELETE FROM grouppquota WHERE groupid=%s" % self.doQuote(group.ident),
525                   "DELETE FROM groups WHERE id=%s" % self.doQuote(group.ident),
526                 ] : 
527            self.doModify(q)
528       
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