From: Torsten Werner Date: Mon, 24 Jan 2011 19:56:43 +0000 (+0100) Subject: Simplify validation of not NULL constraints. X-Git-Url: https://git.decadent.org.uk/gitweb/?a=commitdiff_plain;h=d31bb7a50540b7e6bc86a13a14cd88cd9899395d;p=dak.git Simplify validation of not NULL constraints. And derive more classes from ORMObject. Signed-off-by: Torsten Werner --- diff --git a/daklib/dbconn.py b/daklib/dbconn.py index 0ecb6692..5e047847 100755 --- a/daklib/dbconn.py +++ b/daklib/dbconn.py @@ -212,7 +212,7 @@ class ORMObject(object): value = getattr(self, property) if value is None: # skip None - pass + continue elif isinstance(value, ORMObject): # use repr() for ORMObject types value = repr(value) @@ -245,12 +245,26 @@ class ORMObject(object): ''' return '<%s %s>' % (self.classname(), self.json()) + def not_null_constraints(self): + ''' + Returns a list of properties that must be not NULL. Derived classes + should override this method if needed. + ''' + return [] + + validation_message = \ + "Validation failed because property '%s' must not be empty in object\n%s" + def validate(self): ''' - This function should be implemented by derived classes to validate self. - It may raise the DBUpdateError exception if needed. + This function validates the not NULL constraints as returned by + not_null_constraints(). It raises the DBUpdateError exception if + validation fails. ''' - pass + for property in self.not_null_constraints(): + if not hasattr(self, property) or getattr(self, property) is None: + raise DBUpdateError(self.validation_message % \ + (property, str(self))) __all__.append('ORMObject') @@ -295,11 +309,8 @@ class Architecture(ORMObject): def properties(self): return ['arch_string', 'arch_id', 'suites_count'] - def validate(self): - if self.arch_string is None or len(self.arch_string) == 0: - raise DBUpdateError( \ - "Validation failed because 'arch_string' must not be empty in object\n%s" % \ - str(self)) + def not_null_constraints(self): + return ['arch_string'] __all__.append('Architecture') @@ -1213,14 +1224,8 @@ class PoolFile(ORMObject): return ['filename', 'file_id', 'filesize', 'md5sum', 'sha1sum', \ 'sha256sum', 'location', 'source', 'last_used'] - def validate(self): - # sha1sum and sha256sum are not validated yet - if self.filename is None or len(self.filename) == 0 or \ - self.filesize < 0 or self.md5sum is None or \ - len(self.md5sum) == 0 or self.location is None: - raise DBUpdateError( \ - "Validation failed because some properties must not be empty in object\n%s" % \ - str(self)) + def not_null_constraints(self): + return ['filename', 'md5sum', 'location'] __all__.append('PoolFile') @@ -1332,12 +1337,16 @@ __all__.append('add_poolfile') ################################################################################ -class Fingerprint(object): +class Fingerprint(ORMObject): def __init__(self, fingerprint = None): self.fingerprint = fingerprint - def __repr__(self): - return '' % self.fingerprint + def properties(self): + return ['fingerprint', 'fingerprint_id', 'keyring', 'uid', \ + 'binary_reject'] + + def not_null_constraints(self): + return ['fingerprint'] __all__.append('Fingerprint') @@ -1622,14 +1631,17 @@ __all__.append('get_dbchange') ################################################################################ -class Location(object): +class Location(ORMObject): def __init__(self, path = None): self.path = path # the column 'type' should go away, see comment at mapper self.archive_type = 'pool' - def __repr__(self): - return '' % (self.path, self.location_id) + def properties(self): + return ['path', 'archive_type', 'component', 'files_count'] + + def not_null_constraints(self): + return ['path', 'archive_type'] __all__.append('Location') @@ -1669,12 +1681,15 @@ __all__.append('get_location') ################################################################################ -class Maintainer(object): +class Maintainer(ORMObject): def __init__(self, name = None): self.name = name - def __repr__(self): - return '''''' % (self.name, self.maintainer_id) + def properties(self): + return ['name', 'maintainer_id'] + + def not_null_constraints(self): + return ['name'] def get_split_maintainer(self): if not hasattr(self, 'name') or self.name is None: @@ -2208,7 +2223,7 @@ __all__.append('get_sections') ################################################################################ -class DBSource(object): +class DBSource(ORMObject): def __init__(self, source = None, version = None, maintainer = None, \ changedby = None, poolfile = None, install_date = None): self.source = source @@ -2218,8 +2233,14 @@ class DBSource(object): self.poolfile = poolfile self.install_date = install_date - def __repr__(self): - return '' % (self.source, self.version) + def properties(self): + return ['source', 'source_id', 'maintainer', 'changedby', \ + 'fingerprint', 'poolfile', 'version', 'suites_count', \ + 'install_date'] + + def not_null_constraints(self): + return ['source', 'version', 'maintainer', 'changedby', \ + 'poolfile', 'install_date'] __all__.append('DBSource') @@ -2591,13 +2612,16 @@ SUITE_FIELDS = [ ('SuiteName', 'suite_name'), # Why the heck don't we have any UNIQUE constraints in table suite? # TODO: Add UNIQUE constraints for appropriate columns. -class Suite(object): +class Suite(ORMObject): def __init__(self, suite_name = None, version = None): self.suite_name = suite_name self.version = version - def __repr__(self): - return '' % self.suite_name + def properties(self): + return ['suite_name', 'version'] + + def not_null_constraints(self): + return ['suite_name', 'version'] def __eq__(self, val): if isinstance(val, str): @@ -3051,7 +3075,8 @@ class DBConn(object): # using lazy='dynamic' in the back # reference because we have A LOT of # files in one location - backref=backref('files', lazy='dynamic')))) + backref=backref('files', lazy='dynamic'))), + extension = validator) mapper(Fingerprint, self.tbl_fingerprint, properties = dict(fingerprint_id = self.tbl_fingerprint.c.id, @@ -3060,7 +3085,8 @@ class DBConn(object): keyring_id = self.tbl_fingerprint.c.keyring, keyring = relation(Keyring), source_acl = relation(SourceACL), - binary_acl = relation(BinaryACL))) + binary_acl = relation(BinaryACL)), + extension = validator) mapper(Keyring, self.tbl_keyrings, properties = dict(keyring_name = self.tbl_keyrings.c.name, @@ -3126,14 +3152,16 @@ class DBConn(object): archive = relation(Archive), # FIXME: the 'type' column is old cruft and # should be removed in the future. - archive_type = self.tbl_location.c.type)) + archive_type = self.tbl_location.c.type), + extension = validator) mapper(Maintainer, self.tbl_maintainer, properties = dict(maintainer_id = self.tbl_maintainer.c.id, maintains_sources = relation(DBSource, backref='maintainer', primaryjoin=(self.tbl_maintainer.c.id==self.tbl_source.c.maintainer)), changed_sources = relation(DBSource, backref='changedby', - primaryjoin=(self.tbl_maintainer.c.id==self.tbl_source.c.changedby)))) + primaryjoin=(self.tbl_maintainer.c.id==self.tbl_source.c.changedby))), + extension = validator) mapper(NewComment, self.tbl_new_comments, properties = dict(comment_id = self.tbl_new_comments.c.id)) @@ -3178,7 +3206,8 @@ class DBConn(object): primaryjoin=(self.tbl_source.c.id==self.tbl_dsc_files.c.source)), suites = relation(Suite, secondary=self.tbl_src_associations, backref='sources'), - srcuploaders = relation(SrcUploader))) + srcuploaders = relation(SrcUploader)), + extension = validator) mapper(SourceACL, self.tbl_source_acl, properties = dict(source_acl_id = self.tbl_source_acl.c.id)) @@ -3199,7 +3228,9 @@ class DBConn(object): mapper(Suite, self.tbl_suite, properties = dict(suite_id = self.tbl_suite.c.id, policy_queue = relation(PolicyQueue), - copy_queues = relation(BuildQueue, secondary=self.tbl_suite_build_queue_copy))) + copy_queues = relation(BuildQueue, + secondary=self.tbl_suite_build_queue_copy)), + extension = validator) mapper(SuiteSrcFormat, self.tbl_suite_src_formats, properties = dict(suite_id = self.tbl_suite_src_formats.c.suite, diff --git a/tests/dbtest_fingerprint.py b/tests/dbtest_fingerprint.py index 122ea621..72e081a8 100755 --- a/tests/dbtest_fingerprint.py +++ b/tests/dbtest_fingerprint.py @@ -3,6 +3,7 @@ from db_test import DBDakTestCase from daklib.dbconn import Fingerprint, Uid +from daklib.dak_exceptions import DBUpdateError from sqlalchemy.exc import IntegrityError import unittest @@ -55,7 +56,7 @@ class FingerprintTestCase(DBDakTestCase): self.session.flush() def test_exceptions(self): - self.assertRaises(IntegrityError, self.fingerprint_no_fingerprint) + self.assertRaises(DBUpdateError, self.fingerprint_no_fingerprint) self.session.rollback() self.assertRaises(IntegrityError, self.fingerprint_duplicate_fingerprint) self.session.rollback() diff --git a/tests/dbtest_validation.py b/tests/dbtest_validation.py index 32f47eb8..8592124e 100755 --- a/tests/dbtest_validation.py +++ b/tests/dbtest_validation.py @@ -25,7 +25,7 @@ class ValidatorTestCase(DBDakTestCase): self.session.add(architecture) self.session.flush() # before_update validation should fail - architecture.arch_string = '' + architecture.arch_string = None self.assertRaises(DBUpdateError, self.session.flush) self.session.rollback()