X-Git-Url: https://git.decadent.org.uk/gitweb/?a=blobdiff_plain;f=db_access.py;h=c4f213e4740d22cf52915b7d15fa78efea561dee;hb=1326841f69c50e9494365f74daac134ead0710d9;hp=2fe45177bce8022a91ddbaf994d1305254c39370;hpb=c30e23562021f4ead23579ed4206f7acb3201204;p=dak.git diff --git a/db_access.py b/db_access.py index 2fe45177..c4f213e4 100644 --- a/db_access.py +++ b/db_access.py @@ -1,6 +1,8 @@ +#!/usr/bin/env python + # DB access fucntions -# Copyright (C) 2000, 2001 James Troup -# $Id: db_access.py,v 1.9 2001-11-04 22:34:02 troup Exp $ +# Copyright (C) 2000, 2001, 2002 James Troup +# $Id: db_access.py,v 1.14 2002-10-16 02:47:32 troup Exp $ # 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 @@ -16,7 +18,9 @@ # along with this program; if not, write to the Free Software # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA -import pg, string +############################################################################################ + +import sys, time; ############################################################################################ @@ -33,7 +37,8 @@ location_id_cache = {}; maintainer_id_cache = {}; source_id_cache = {}; files_id_cache = {}; -maintainer_cache = {} +maintainer_cache = {}; +fingerprint_id_cache = {}; ############################################################################################ @@ -43,6 +48,15 @@ def init (config, sql): Cnf = config; projectB = sql; + +def do_query(q): + sys.stderr.write("query: \"%s\" ... " % (q)); + before = time.time(); + r = projectB.query(q); + time_diff = time.time()-before; + sys.stderr.write("took %.3f seconds.\n" % (time_diff)); + return r; + ############################################################################################ def get_suite_id (suite): @@ -128,10 +142,12 @@ def get_architecture_id (architecture): def get_archive_id (archive): global archive_id_cache + archive = archive.lower(); + if archive_id_cache.has_key(archive): return archive_id_cache[archive] - q = projectB.query("SELECT id FROM archive WHERE name = '%s'" % (archive)) + q = projectB.query("SELECT id FROM archive WHERE lower(name) = '%s'" % (archive)); ql = q.getresult(); if not ql: return -1; @@ -144,10 +160,12 @@ def get_archive_id (archive): def get_component_id (component): global component_id_cache + component = component.lower(); + if component_id_cache.has_key(component): return component_id_cache[component] - q = projectB.query("SELECT id FROM component WHERE lower(name) = '%s'" % (string.lower(component))) + q = projectB.query("SELECT id FROM component WHERE lower(name) = '%s'" % (component)) ql = q.getresult(); if not ql: return -1; @@ -216,6 +234,23 @@ def get_or_set_maintainer_id (maintainer): ########################################################################################## +def get_or_set_fingerprint_id (fingerprint): + global fingerprint_id_cache + + if fingerprint_id_cache.has_key(fingerprint): + return fingerprint_id_cache[fingerprint] + + q = projectB.query("SELECT id FROM fingerprint WHERE fingerprint = '%s'" % (fingerprint)) + if not q.getresult(): + projectB.query("INSERT INTO fingerprint (fingerprint) VALUES ('%s')" % (fingerprint)) + q = projectB.query("SELECT id FROM fingerprint WHERE fingerprint = '%s'" % (fingerprint)) + fingerprint_id = q.getresult()[0][0] + fingerprint_id_cache[fingerprint] = fingerprint_id + + return fingerprint_id + +########################################################################################## + def get_files_id (filename, size, md5sum, location_id): global files_id_cache @@ -246,15 +281,19 @@ def get_files_id (filename, size, md5sum, location_id): def set_files_id (filename, size, md5sum, location_id): global files_id_cache - cache_key = "%s~%d" % (filename, location_id); - - #print "INSERT INTO files (filename, size, md5sum, location) VALUES ('%s', %d, '%s', %d)" % (filename, long(size), md5sum, location_id); projectB.query("INSERT INTO files (filename, size, md5sum, location) VALUES ('%s', %d, '%s', %d)" % (filename, long(size), md5sum, location_id)); - q = projectB.query("SELECT id FROM files WHERE id = currval('files_id_seq')"); - ql = q.getresult()[0]; - files_id_cache[cache_key] = ql[0] - return files_id_cache[cache_key] + return get_files_id (filename, size, md5sum, location_id); + + ### currval has issues with postgresql 7.1.3 when the table is big; + ### it was taking ~3 seconds to return on auric which is very Not + ### Cool(tm). + ## + ##q = projectB.query("SELECT id FROM files WHERE id = currval('files_id_seq')"); + ##ql = q.getresult()[0]; + ##cache_key = "%s~%d" % (filename, location_id); + ##files_id_cache[cache_key] = ql[0] + ##return files_id_cache[cache_key]; ##########################################################################################