class DbHelper(object):
"""docstring for DbHelper"""
def __init__(self, arg):
super(DbHelper, self).__init__()
self.arg = arg
self.db = DAL('mongodb://140.143.247.178:27099/spider')
self.define_table()
'''
self.db.thing.insert(name='Chair')
query = self.db.thing.name.startswith('C')
rows = self.db(query).select()
print(rows[0].name)
self.db.commit()
'''
def define_table(self):
print(self.db._dbname)
self.db.define_table('douban_topic', Field('title'),
Field('title_url'), Field('people'),
Field('people_url'), Field('replay_num'),
Field('post_time'))
def insert_models(self, table_name='', items=[]):
a = list(map(dict, items))
self.db.douban_topic.bulk_insert(a)
self.db.commit()
def testRun(self):
for ref, bigint in [("reference", False), ("big-reference", True)]:
db = DAL(DEFAULT_URI, check_reserved=["all"], bigint_id=bigint)
if bigint and "big-id" not in db._adapter.types:
continue
db.define_table("tt", Field("vv"))
db.define_table(
"ttt",
Field("vv"),
Field("tt_id", "%s tt" % ref, unique=True),
Field("tt_uq", "integer", unique=True),
)
id_1 = db.tt.insert(vv="pydal")
id_2 = db.tt.insert(vv="pydal")
# Null tt_id
db.ttt.insert(vv="pydal", tt_uq=1)
# first insert is OK
db.ttt.insert(tt_id=id_1, tt_uq=2)
self.assertRaises(Exception, db.ttt.insert, tt_id=id_1, tt_uq=3)
self.assertRaises(Exception, db.ttt.insert, tt_id=id_2, tt_uq=2)
# The following is mandatory for backends as PG to close the aborted transaction
db.commit()
drop(db.ttt)
drop(db.tt)
db.close()
class Db:
def __init__(self):
self.uri = 'sqlite://database.sqlite'
self.folder = os.path.join(current_dir, "sqlite")
self.db = None
def connect(self):
if not self.db:
self.db = DAL(self.uri, folder=self.folder, pool_size=5, lazy_tables=False)
#, migrate_enabled=False, migrate=False, lazy_tables=True
self.tables()
else:
print("Error: db already open")
def close(self):
self.db.close()
self.db = None
def tables(self):
self.tableUsers()
def tableUsers(self):
try:
#Note: id is created automattically if omited
self.db.define_table('users',
Field('username', type='string'),
Field('email', type='string'),
Field('password', type='string'),
Field('uid', type='integer', default=0),
Field('userRole', type='string', defaul='user'),#user, admin
Field('secureKey', type='string', default='0', writable=False, readable=False),#secet key token - should be used if in server side
Field('dateRegistration', type='datetime', writable=False, readable=False)
)
except:
print('models db.DB() tableUsers Error')
def tableLogs(self):
pass
def insertUser(self, username, email, password, dateRegistration):
self.connect()
import secrets#generate url safe token
secureKey = secrets.token_urlsafe()
self.db.users.insert(username=username, email=email, password=password, uid=0, userRole="user", secureKey=secureKey, dateRegistration=dateRegistration)
self.db.commit()
self.db.close()
def loginUser(self, username, password):
self.connect()
self.db._adapter.reconnect()#gives thread error without
user = self.db( (self.db.users.username == username) & (self.db.users.password == password) ).select().first()
self.db.close()
#if no user, it will return user = None
return user
def init_db(path='sqlite://storage.db'):
'''Connect to DB'''
global db
db = DAL(path)
db = create_tables(db)
logger.error('*******' + str(db))
db.commit()
return db
def model():
db = DAL('sqlite://todo.db',pool_size=1,folder='./') #,migrate=False)
Todos=db.define_table('todos',Field('title'),Field('isCompleted','boolean',default=False))
if not db(db.todos).count():
for i in range(1,16):
db.todos.insert(title='الموعد '+str(i))
db.commit()
return (db)
def testRun(self):
db = DAL(DEFAULT_URI, check_reserved=["all"])
db.define_table("tt", Field("vv"))
vv = "ἀγοραζε"
id_i = db.tt.insert(vv=vv)
row = db(db.tt.id == id_i).select().first()
self.assertEqual(row.vv, vv)
db.commit()
drop(db.tt)
db.close()
def testRun(self):
db = DAL(DEFAULT_URI, check_reserved=['all'])
db.define_table('tt', Field('vv'))
db.define_table('ttt', Field('vv'), Field('tt_id', 'reference tt', notnull=True))
self.assertRaises(Exception, db.ttt.insert, vv='pydal')
# The following is mandatory for backends as PG to close the aborted transaction
db.commit()
drop(db.ttt)
drop(db.tt)
db.close()
def testRun(self):
db = DAL(DEFAULT_URI, check_reserved=['all'])
db.define_table('tt', Field('vv'))
vv = 'ἀγοραζε'
id_i = db.tt.insert(vv=vv)
row = db(db.tt.id == id_i).select().first()
self.assertEqual(row.vv, vv)
db.commit()
drop(db.tt)
db.close()
def testRun(self):
for ref, bigint in [('reference', False), ('big-reference', True)]:
db = DAL(DEFAULT_URI, check_reserved=['all'], bigint_id=bigint)
db.define_table('tt', Field('vv'))
db.define_table('ttt', Field('vv'),
Field('tt_id', '%s tt' % ref, notnull=True))
self.assertRaises(Exception, db.ttt.insert, vv='pydal')
# The following is mandatory for backends as PG to close the aborted transaction
db.commit()
drop(db.ttt)
drop(db.tt)
db.close()
def testRun(self):
for ref, bigint in [('reference', False), ('big-reference', True)]:
db = DAL(DEFAULT_URI, check_reserved=['all'], bigint_id=bigint)
if bigint and 'big-id' not in db._adapter.types:
continue
db.define_table('tt', Field('vv'))
db.define_table('ttt', Field('vv'), Field('tt_id', '%s tt' % ref,
notnull=True))
self.assertRaises(Exception, db.ttt.insert, vv='pydal')
# The following is mandatory for backends as PG to close the aborted transaction
db.commit()
drop(db.ttt)
drop(db.tt)
db.close()
def testRun(self):
for ref, bigint in [("reference", False), ("big-reference", True)]:
db = DAL(DEFAULT_URI, check_reserved=["all"], bigint_id=bigint)
if bigint and "big-id" not in db._adapter.types:
continue
db.define_table("tt", Field("vv"))
db.define_table("ttt", Field("vv"),
Field("tt_id", "%s tt" % ref, notnull=True))
self.assertRaises(Exception, db.ttt.insert, vv="pydal")
# The following is mandatory for backends as PG to close the aborted transaction
db.commit()
drop(db.ttt)
drop(db.tt)
db.close()
def test_single_transaction(self):
db = DAL(DEFAULT_URI)
db.define_table('tt', Field('aa'))
self.assertEqual(db(db.tt).count(), 0)
db.commit()
try:
with db.single_transaction():
db.tt.insert(aa='test')
1 / 0
except ZeroDivisionError:
pass
self.assertEqual(db(db.tt).count(), 0)
with db.single_transaction():
db.tt.insert(aa='test')
self.assertEqual(db(db.tt).count(), 1)
def testRun(self):
for ref, bigint in [('reference', False), ('big-reference', True)]:
db = DAL(DEFAULT_URI, check_reserved=['all'], bigint_id=bigint)
db.define_table('tt', Field('vv'))
db.define_table('ttt', Field('vv'), Field('tt_id', '%s tt' % ref,
unique=True))
id_i = db.tt.insert(vv='pydal')
# Null tt_id
db.ttt.insert(vv='pydal')
# first insert is OK
db.ttt.insert(tt_id=id_i)
self.assertRaises(Exception, db.ttt.insert, tt_id=id_i)
# The following is mandatory for backends as PG to close the aborted transaction
db.commit()
drop(db.ttt)
drop(db.tt)
db.close()
def testRun(self):
for ref, bigint in [('reference', False), ('big-reference', True)]:
db = DAL(DEFAULT_URI, check_reserved=['all'], bigint_id=bigint)
if bigint and 'big-id' not in db._adapter.types:
continue
db.define_table('tt', Field('vv'))
db.define_table('ttt', Field('vv'), Field('tt_id', '%s tt' % ref,
unique=True,
notnull=True))
self.assertRaises(Exception, db.ttt.insert, vv='pydal')
db.commit()
id_i = db.tt.insert(vv='pydal')
# first insert is OK
db.ttt.insert(tt_id=id_i)
self.assertRaises(Exception, db.ttt.insert, tt_id=id_i)
# The following is mandatory for backends as PG to close the aborted transaction
db.commit()
drop(db.ttt)
drop(db.tt)
db.close()
def testRun(self):
db = DAL(DEFAULT_URI, check_reserved=["all"])
db.define_table("aa", Field("name"))
db.define_table("bb", Field("aa", "reference aa"), Field("name"))
for k in ("x", "y", "z"):
i = db.aa.insert(name=k)
for j in ("u", "v", "w"):
db.bb.insert(aa=i, name=k + j)
db.commit()
rows = db(db.aa).select()
rows.join(db.bb.aa, fields=[db.bb.name], orderby=[db.bb.name])
self.assertEqual(rows[0].bb[0].name, "xu")
self.assertEqual(rows[0].bb[1].name, "xv")
self.assertEqual(rows[0].bb[2].name, "xw")
self.assertEqual(rows[1].bb[0].name, "yu")
self.assertEqual(rows[1].bb[1].name, "yv")
self.assertEqual(rows[1].bb[2].name, "yw")
self.assertEqual(rows[2].bb[0].name, "zu")
self.assertEqual(rows[2].bb[1].name, "zv")
self.assertEqual(rows[2].bb[2].name, "zw")
rows = db(db.bb).select()
rows.join(db.aa.id, fields=[db.aa.name])
self.assertEqual(rows[0].aa.name, "x")
self.assertEqual(rows[1].aa.name, "x")
self.assertEqual(rows[2].aa.name, "x")
self.assertEqual(rows[3].aa.name, "y")
self.assertEqual(rows[4].aa.name, "y")
self.assertEqual(rows[5].aa.name, "y")
self.assertEqual(rows[6].aa.name, "z")
self.assertEqual(rows[7].aa.name, "z")
self.assertEqual(rows[8].aa.name, "z")
rows_json = rows.as_json()
drop(db.bb)
drop(db.aa)
db.close()
def testRun(self):
db = DAL(DEFAULT_URI, check_reserved=['all'])
db.define_table('aa',Field('name'))
db.define_table('bb',Field('aa','reference aa'),Field('name'))
for k in ('x','y','z'):
i = db.aa.insert(name=k)
for j in ('u','v','w'):
db.bb.insert(aa=i,name=k+j)
db.commit()
rows = db(db.aa).select()
rows.join(db.bb.aa, fields=[db.bb.name], orderby=[db.bb.name])
self.assertEqual(rows[0].bb[0].name, 'xu')
self.assertEqual(rows[0].bb[1].name, 'xv')
self.assertEqual(rows[0].bb[2].name, 'xw')
self.assertEqual(rows[1].bb[0].name, 'yu')
self.assertEqual(rows[1].bb[1].name, 'yv')
self.assertEqual(rows[1].bb[2].name, 'yw')
self.assertEqual(rows[2].bb[0].name, 'zu')
self.assertEqual(rows[2].bb[1].name, 'zv')
self.assertEqual(rows[2].bb[2].name, 'zw')
rows = db(db.bb).select()
rows.join(db.aa.id, fields=[db.aa.name])
self.assertEqual(rows[0].aa.name, 'x')
self.assertEqual(rows[1].aa.name, 'x')
self.assertEqual(rows[2].aa.name, 'x')
self.assertEqual(rows[3].aa.name, 'y')
self.assertEqual(rows[4].aa.name, 'y')
self.assertEqual(rows[5].aa.name, 'y')
self.assertEqual(rows[6].aa.name, 'z')
self.assertEqual(rows[7].aa.name, 'z')
self.assertEqual(rows[8].aa.name, 'z')
rows_json = rows.as_json()
drop(db.bb)
drop(db.aa)
db.close()
class DbHelper(object):
"""docstring for DbHelper"""
def __init__(self, arg):
super(DbHelper, self).__init__()
self.arg = arg
self.db = DAL('mongodb://140.143.247.178:27099/spider')
self.define_table()
'''
self.db.thing.insert(name='Chair')
query = self.db.thing.name.startswith('C')
rows = self.db(query).select()
print(rows[0].name)
self.db.commit()
'''
def define_table(self):
print(self.db._dbname)
self.db.define_table('douban_topic',Field('title'),Field('title_url'),Field('people'),Field('people_url')
,Field('replay_num'),Field('post_time'))
def insert_models(self,table_name='',items=[]):
a = list(map(dict,items))
self.db.douban_topic.bulk_insert(a)
self.db.commit()
class DataBase:
def __init__(self, dbname='postgres', schema='Acervo', pool_size=5):
load_dotenv()
self.dbname = dbname
self.schema = schema
self.username = os.getenv("DBUSERNAME")
self.password = os.getenv("DBPASS")
self.host = os.getenv("DBHOST")
self.port = os.getenv("DBPORT")
self.folder = 'Resources' + os.sep + 'database'
self.dbinfo = \
'postgres://' + str(self.username) + ':' + str(self.password) + '@' \
+ str(self.host) + ':' + str(self.port) + '/' + str(self.dbname)
self.db = DAL(
self.dbinfo,
folder=self.folder,
pool_size=pool_size,
migrate=False,
attempts=1
)
self.connection = None
def execute_sql(self, sql, as_dict=True):
retorno = list()
try:
retorno = self.db.executesql(query=sql, as_dict=as_dict)
self.db.commit()
logging.debug('[DataBase] status=' + str(True))
logging.debug('[DataBase] sql=' + str(sql))
logging.debug('[DataBase] retorno=' + str(retorno))
prc = True, retorno, str(self.db._lastsql)
except Exception as e:
self.db.rollback()
logging.debug('[DataBase] status=' + str(False))
logging.debug('[DataBase] sql=' + str(sql))
logging.debug('[DataBase] exception=' + str(e))
retorno.append(e)
prc = False, retorno, str(sql)
except:
e = 'Exceção não tratada'
logging.debug('[DataBase] status=' + str(False))
logging.debug('[DataBase] sql=' + str(sql))
logging.debug('[DataBase] exception2=' + str(e))
retorno.append(e)
prc = False, e, str(sql)
return prc
def __conectar_banco__(self):
try:
self.connection = self.db.__call__()
except Exception as e:
logging.debug('[DataBase] ' + str(e))
return self
def definir_schema(self, schema):
self.schema = schema
self.execute_sql("SET search_path TO " + self.schema, as_dict=False)
def fechar_conexao(self):
self.db.close()
class DbModel:
"""the abstract layer of vh.
make the caller need not to care about what and how to storage/fetch data
Attributes:
db: string the data base name,just to idenity.
"""
def __init__(self, db_name="vh"):
self.db_name = db_name
folder_path = os.getenv("VH_USER_PATH") or "./vol/vh-user"
self.folder_path = folder_path
self._init_db()
pass
def __del__(self):
if hasattr(self, "db"):
self.db.close()
pass
def _init_db(self):
if not os.path.exists(self.folder_path):
os.mkdir(self.folder_path)
sqlite_uri = f'sqlite://{self.db_name}.sqlite'
self.db = DAL(sqlite_uri, folder=self.folder_path)
# TODO pydal会自动自动创建id字段为自增主键 user-id 是不是多余了
self.db.define_table('word', Field('user_id'), Field(
'word'), Field('word_type'), Field('time'))
self.db.define_table('meta', Field('key'), Field('value'))
self.db.meta.insert(key='db_version', value=DB_VERSION)
self.db.commit()
self.init_corpus_table(self.db)
def _db(self):
return self.db
def get_all_unknow_word_by_id(self, id):
"""
Args:
id: string user id
Returns:
[string]
"""
return [item.word for item in self.db((self.db.word.user_id == id) & (self.db.word.word_type == "unknow")).select(self.db.word.ALL)]
def get_all_know_word_by_id(self, id):
"""
Args:
id: string user id
Returns:
[string]
"""
return [item.word for item in self.db((self.db.word.user_id == id) & (self.db.word.word_type == "know")).select(self.db.word.ALL)]
pass
def mark_know_word_by_id(self, id, words):
"""
Args:
id: string user id
words: [string]
"""
for word in words:
self.db.word.update_or_insert(
(self.db.word.word == word) & (self.db.word.user_id == id),
word=word,
user_id=id,
word_type="know",
time=pytime.asctime(pytime.gmtime()))
self.db.commit()
pass
def mark_unknow_word_by_id(self, id, words):
"""
Args:
id: string user id
words: [string]
"""
for word in words:
self.db.word.update_or_insert(
(self.db.word.word == word) & (self.db.word.user_id == id),
word=word,
user_id=id,
word_type="unknow",
time=pytime.asctime(pytime.gmtime()))
self.db.commit()
pass
def init_corpus_table(self, db):
"""
初始化与语料相关的表 也许以后应当是横切的数据库
corpus_meta {
id, # 自动生成主键之类的
md5, # corpus 应当是纯文字的感觉
type, # corpus类型 设计上有 article subtitle book 之类的
struct, # 存储来此corpus的结构 之后查询的时候 通过这个结构和倒排索引 拿到初始范围 {start:xx,end:xxx,type:"root",child:[{start:xx,end:xxx etc}]
time,
source, # 例如url之类的
name,
}
corpus {
id,
content,
}
user_corpus {
user_id,
corpus_id
}
word_invert_index {
word,
lemma,
corpus_id
position, # left-right
}
"""
db.define_table("corpus_meta",
Field("id", type="id"),
Field("md5", type="string", length=255),
Field("type", type="string", length=255),
Field("struct", type="string", length=10240), # 应该够了
Field("time", 'datetime'),
Field("source", type="string", length=1024),
Field("name", type="string", length=1024),
)
db.define_table("corpus",
Field("corpus_id", type='reference corpus_meta'),
Field("content", type="text", length=1024*1024),
)
db.define_table("user_corpus",
Field("user_id", type="string"),
Field("corpus_id", type="reference corpus_meta")
)
db.define_table("word_invert_index",
Field("word", type="string"),
Field("lemma", type="string"),
Field("corpus_id", type="reference corpus_meta"),
Field("span", type="string"),
)
pass
def has_article(self, article):
record = self.db(self.db.corpus_meta.md5 ==
article["md5"]).select().first()
return record != None
pass
def find_article_meta(self, id):
record = self.db.corpus_meta(id)
if record is None:
return None
record = record.as_dict()
record["struct"] = json.loads(record["struct"])
return record
def find_article(self, id, span):
data = self.db(self.db.corpus.corpus_id == id).select(
self.db.corpus.content[span[0]:span[1]]).first()
raw = list(data._extra.as_dict().values())[0]
return raw
def save_article(self, article):
raw_article = article["article"]
corpus_meta_data = {"name": article["name"], "source": article["source"], "type": article["type"],
"time": article["time"], "struct": article["struct"], "md5": article["md5"]}
cropus_id = self.db.corpus_meta.insert(**corpus_meta_data)
self.db.corpus.insert(corpus_id=cropus_id, content=raw_article)
self.db.commit()
return cropus_id
pass
def save_word_invert_index(self, corpus_id, words):
def map_word(corpus_id, word):
word["corpus_id"] = corpus_id
word["span"] = json.dumps(word["span"])
return word
words = [map_word(corpus_id, w) for w in words]
self.db.word_invert_index.bulk_insert(words)
self.db.commit()
pass
def connect_user_and_corpus(self, user_id, corpus_id):
self.db.user_corpus.insert(
**{"user_id": user_id, "corpus_id": corpus_id})
self.db.commit()
pass
def find_word_invert_index(self, user_id, lemma):
words = self.db(
(self.db.user_corpus.user_id == user_id)
& (self.db.word_invert_index.corpus_id == self.db.user_corpus.corpus_id)
& (self.db.word_invert_index.lemma == lemma)
).select(self.db.word_invert_index.ALL)
for w in words:
w = w.as_dict()
del w["id"]
w["span"] = json.loads(w["span"])
yield w
pass
class KeyValueStore(object):
def __init__(self):
self.db = DAL('sqlite://keyvalstore.db', folder=get_config_dir())
self.db.define_table(
'store', Field('key', type='string', required=True, unique=True),
Field('value', type='blob'),
Field('version', type='integer', default=0))
def __del__(self):
self.db.close()
def set(self, key, value):
# We have to execute pure SQL statements because pydal does not support blobs as it seems
res = self.db.executesql('SELECT value from store where key=?',
placeholders=[key])
if len(res) > 0:
self.db.executesql('UPDATE store SET value=? where key=?',
placeholders=[pickle.dumps(value), key])
else:
self.db.executesql(
'INSERT INTO "store"("key","value") VALUES (?, ?)',
placeholders=[key, pickle.dumps(value)])
self.db.commit()
def get(self, key, default=""):
res = self.db.executesql('SELECT value from store where key=?',
placeholders=[key])
return default if len(res) == 0 else pickle.loads(res[0][0])
def set_versioned(self, key, value, version):
response = requests.post(
'https://dibser.vserverli.de/php/keyvaluestore.php?key={}&version={}'
.format(key, version),
data=pickle.dumps(value),
headers={'Content-Type': 'application/octet-stream'})
response.raise_for_status()
res = self.db.executesql('SELECT value from store where key=?',
placeholders=[key])
if len(res) > 0:
self.db.executesql(
'UPDATE store SET value=?, version=? where key=?',
placeholders=[pickle.dumps(value), version, key])
else:
self.db.executesql(
'INSERT INTO "store"("key","value", "version") VALUES (?, ?, ?)',
placeholders=[key, pickle.dumps(value), version])
self.db.commit()
def get_versioned(self, key, default=""):
res = self.db.executesql('SELECT value,version from store where key=?',
placeholders=[key])
value = None
if len(res) > 0:
newest_version = local_version = res[0][1]
if not local_version: local_version = 1
value = res[0][0]
# check remote version and update if remote is newer (status code == 200 if a newer version is available, otherwise status code 404 if not available or 304 if older/same version)
response = requests.get(
'https://dibser.vserverli.de/php/keyvaluestore.php?key={}&version={}'
.format(key, local_version))
if response.status_code == 200:
newest_version = int(response.headers['X-Keyvalstore-Version'])
value = response.content
print(
"Remote version is newer for key={}. Local version={} remote version={}"
.format(key, local_version, newest_version))
return (default, -1) if value == None else (pickle.loads(value),
newest_version)
class CalDav(object):
def __init__(self):
self.db = DAL('sqlite://caldav.db', folder=BaseDirectory.save_data_path('pyhttpserver'))
self.db.define_table('collections', Field('url', type='string', required=True, unique=True),
Field('displayname', type='string'),
Field('subscribed', type='boolean', default=True))
self.db.define_table('colitems', Field('href', type='string', required=True),
Field('etag', type='string'),
Field('collection', type='reference collections'),
Field('content', type='blob'),
Field('local_status', type='integer', default=0))
self.davStorages = {}
def __del__(self):
self.db.close()
def sync_collections(self):
deletedCollections = set([ x.url for x in self.db(self.db.collections.url != None).select() ])
cfg = common.get_davconfig()
for serverCfg in cfg.get('servers', []):
config = dict(username=serverCfg['username'], password=serverCfg['password'], url=serverCfg['url'])
config['url'] = requests.get(config['url']).url
storage = CalDAVStorage(**config)
# Fetch all locally available collections, then fetch the collections from the server side and add them locally if they are not available yet
# Afterwards delete all collections from the database that were not available on the server side anymore
for s in storage.discover(**config):
subStorage = CalDAVStorage(**s)
displayname = subStorage.get_meta('displayname')
deletedCollections.discard(s['url'])
self.db.collections.update_or_insert(self.db.collections.url==s['url'], url=s['url'], displayname=displayname)
self.davStorages[s['url']] = subStorage
for deletedCollection in deletedCollections:
print("Collection with url={} was deleted on the server side".format(deletedCollection))
self.db(self.db.collections.url == deletedCollection).delete()
self.db.commit()
def sync(self, socketio=None):
#~ if socketio: socketio.sleep(3)
self.sync_collections()
# sync only subsribed collections...
for collectionRow in self.db(self.db.collections.subscribed == True).select():
davUrl = collectionRow.url
davStorage = self.davStorages[davUrl]
id = collectionRow.id
# Sync local changes to the server
self.sync_local_changes(davUrl)
# get changes from server
updated = set()
new = set()
deleted = set([ x['href'] for x in self.db(self.db.colitems.collection == id).select() ])
for href,etag in davStorage.list():
if href in deleted:
deleted.remove(href)
if self.db((self.db.colitems.collection == id) & (self.db.colitems.href == href)).select()[0].etag != etag:
updated.add(href)
else:
new.add(href)
if len(new)>0: print("New objects at server: ", new)
if len(updated)>0: print("Updated objects at server: ", updated)
if len(deleted)>0: print("Deleted objects at server: ", deleted)
# Delete server deleted items also from local database
for deletedItem in deleted:
print("Deleted object with href={} on the server side".format(deletedItem))
self.db(self.db.colitems.href == deletedItem).delete()
# Fetch server created/modified items and update in local db
for href, item, etag in davStorage.get_multi(updated|new):
self.db.colitems.update_or_insert((self.db.colitems.collection==id) & (self.db.colitems.href==href), href=href, etag=etag, collection=id, content=item.raw, local_status=0)
for collectionRow in self.db(self.db.collections.subscribed == False).select():
self.db(self.db.colitems.collection==collectionRow.id).delete();
self.db.commit()
def get_collection_id(self, url):
return self.db(self.db.collections.url == url).select()[0].id
def sync_local_changes(self, davStorageUrl):
davStorage = self.davStorages[davStorageUrl]
collectionId = self.get_collection_id(davStorageUrl)
for deletedItem in self.db((self.db.colitems.local_status == 2) & (self.db.colitems.collection == collectionId)).select():
print("Deleting locally removed item with etag={} from server".format(deletedItem.etag))
davStorage.delete(deletedItem.href, deletedItem.etag)
deletedItem.delete_record()
for modifiedItem in self.db((self.db.colitems.local_status == 1) & (self.db.colitems.collection == collectionId)).select():
print("Updating locally modified item with etag={} at server".format(modifiedItem.etag))
newEtag = davStorage.update(modifiedItem.href, Item(modifiedItem.content), modifiedItem.etag)
modifiedItem.update_record(etag=newEtag, local_status=0)
for newItem in self.db((self.db.colitems.local_status == 3) & (self.db.colitems.collection == collectionId)).select():
print("Adding a new ical to the server")
href, etag = davStorage.upload(Item(newItem.content))
newItem.update_record(etag=etag, href=href, local_status=0)
self.db.commit()
def get_subscribed_collections(self):
return [ {'url': x.url, 'id': x.id, 'name': x.displayname} for x in self.db(self.db.collections.subscribed == True).select() ]
def get(self, id):
return vcard21_to_vcard30(vobject.readOne(self.db(self.db.colitems.id == id).select()[0].content))
def get_structured(self, id):
vcard = self.get(id)
ret = {}
vcardAsDict = vcard.contents
if 'fn' not in vcardAsDict:
print("vCard with id={} does not have the field FN set".format(id))
else:
if len(vcardAsDict['fn']) > 1: print("vCard with id={} has more than one FN field. Ignoring all but the first".format(id))
ret['fn'] = vcardAsDict['fn'][0].value
if 'n' not in vcardAsDict:
print("vCard with id={} does not have the field N set".format(id))
ret['fn'] = dict(given="",family="",prefix="",suffix="",additional="")
else:
if len(vcardAsDict['n']) > 1: print("vCard with id={} has more than one N field. Ignoring all but the first".format(id))
ret['n'] = vcardAsDict['n'][0].value.__dict__
if len(vcardAsDict.get('bday', [])) > 1: print("vCard with id={} has more than one BDAY field. Ignoring all but the first".format(id))
ret['bday'] = ""
if 'bday' in vcardAsDict and vcardAsDict['bday'][0].value:
bday_datetime = parse(vcardAsDict['bday'][0].value).replace(tzinfo=None)
ret['bday'] = '%02d. %02d. %04d' % (bday_datetime.day, bday_datetime.month, bday_datetime.year)
for a in ['adr','tel','email']:
for i in range(len(vcardAsDict.get(a, []))):
setattr(vcardAsDict[a][i], 'orig_id', i)
for attr in ['adr', 'tel', 'email']:
ret[attr] = [ {'value': (x.value if type(x.value)==str else x.value.__dict__),
'type': [t.lstrip('x-') for t in x.params.get('TYPE', []) if t.lower() != 'pref'],
'pref': (vcard_get_pref_value(x) != 101),
'orig_id': x.orig_id
} for x in sorted(vcardAsDict.get(attr, []), key=vcard_get_pref_value) ]
ret['itemid'] = id
ret['colid'] = self.db(self.db.colitems.id == id).select()[0].collection;
return ret
def get_serialized(self, id):
vcard = self.get_structured(id)
vcard_formatted = 'Name: {}\n'.format(vcard['fn'])
vcard_formatted += 'Full name: {} {} {} {} {}\n\n'.format(vcard['n']['prefix'],vcard['n']['given'],vcard['n']['additional'],vcard['n']['family'],vcard['n']['suffix'])
if vcard['bday']: vcard_formatted += 'Birthday: {}\n\n'.format(vcard['bday'])
for email in vcard['email']:
vcard_formatted += 'Email {}{}:\n\t{}\n'.format(",".join(email['type']), " (pref)" if email['pref'] else "", email['value'])
vcard_formatted += '\n'
for adr in vcard['adr']:
vcard_formatted += 'Address {}{}:\n\t{}\n\t{} {}\n\t{}\n\n'.format(",".join(adr['type']), " (pref)" if adr['pref'] else "", adr['value']['street'], adr['value']['code'], adr['value']['city'], adr['value']['country'])
for tel in vcard['tel']:
vcard_formatted += 'Telephone {}{}:\n\t{}\n'.format(",".join(tel['type']), " (pref)" if tel['pref'] else "", tel['value'])
return vcard_formatted
def get_all_items(self):
def mk_item(db_item):
ret = {"id": db_item.id, "colid": db_item.collection}
vItem = self.get_structured(db_item.id)
ret['fn'] = vItem['fn']
ret['email'] = "<br />".join((x['value'] for x in vItem['email']))
ret['tel'] = "<br />".join((x['value'] for x in vItem['tel']))
ret['bday'] = vItem['bday']
ret['bday_diff'] = 400
if vItem['bday']:
bday_datetime = datetime.strptime(vItem['bday'], "%d. %m. %Y")
ret['bday_diff'] = (rrule(YEARLY, bymonth=bday_datetime.month, bymonthday=bday_datetime.day).after(bday_datetime, True) - datetime.today()).days
return ret
return ( mk_item(x) for x in self.db(self.db.colitems.local_status != 2).select() )
def _merge_dict_to_vcard(self, itemDict, vcard):
def get_vcard_item(vcard, item, append=False, cls=str):
entry = vcard.add(item) if append else getattr(vcard, item) if hasattr(vcard, item) else vcard.add(item)
if append: entry.value = cls()
assert cls == type(entry.value)
return entry
get_vcard_item(vcard, 'n', cls=vobject.vcard.Name).value.__dict__.update(itemDict['n'])
get_vcard_item(vcard, 'fn').value = "{0} {1}".format(itemDict['n']['given'], itemDict['n']['family'])
if itemDict['bday']:
get_vcard_item(vcard, 'bday').value = datetime.strptime(itemDict['bday'], "%d. %m. %Y").strftime("%Y%m%d")
del vcard.contents['bday'][1:]
elif 'bday' in vcard.contents: del vcard.contents['bday']
for (attr, cls) in [('adr',vobject.vcard.Address), ('tel',str), ('email',str)]:
entriesBefore = frozenset(range(len(vcard.contents.get(attr, []))))
entriesNow = frozenset([ x['orig_id'] for x in itemDict[attr] if 'orig_id' in x ])
for item in itemDict[attr]:
orig_id = item.get('orig_id', None)
entry = vcard.contents[attr][orig_id] if orig_id != None else get_vcard_item(vcard, attr, append="True", cls=cls)
if (cls == str): entry.value = item['value']
else: entry.value.__dict__.update(item['value'])
knownTypes = frozenset(item['type']).intersection(defined_types[attr])
userTypes = [ 'x-{}'.format(x) for x in frozenset(item['type']).difference(defined_types[attr]) ]
pref = ['pref'] if item['pref'] else []
entry.params['TYPE'] = list(knownTypes)+userTypes+pref
if attr=='adr' and 'LABEL' in entry.params: del entry.params['LABEL']
for deletedIdx in sorted(entriesBefore.difference(entriesNow), reverse=True): del vcard.contents[attr][deletedIdx]
d = datetime.now()
get_vcard_item(vcard, 'rev').value = "%04d%02d%02dT%02d%02d%02d"%(d.year,d.month,d.day,d.hour,d.minute,d.second)
return vcard
def update_item(self, id, itemDict, socketio=None):
self.db(self.db.colitems.id == id).update(content=self._merge_dict_to_vcard(itemDict, self.get(id)).serialize(), local_status=1)
self.db.commit()
if socketio: socketio.start_background_task(self.sync, socketio)
else: self.sync()
return self.get_structured(id)
def add_item(self, itemDict, collectionId=1, socketio=None):
id = self.db.colitems.insert(content=self._merge_dict_to_vcard(itemDict, vobject.vCard()).serialize(), local_status=3, collection=collectionId, href="")
self.db.commit()
if socketio: socketio.start_background_task(self.sync, socketio)
else: self.sync()
return self.get_structured(id)
def delete_item(self, id, socketio=None):
item = self.db(self.db.colitems.id == id).select()[0]
if item.local_status == 3: item.delete_record()
else: item.update_record(local_status=2)
self.db.commit()
if socketio: socketio.start_background_task(self.sync, socketio)
else: self.sync()
def get_collections(self, user, pw, url):
config = dict(username=user, password=pw, url=url)
if not pw:
keyringData = keyring.DbusKeyring().FindItem({'dav-url': url, 'dav-user': user})
config['password'] = keyringData[1]
config['url'] = requests.get(config['url']).url # do redirection magic
storage = CalDAVStorage(**config)
ret = []
for s in storage.discover(**config):
subscribed = False
subStorage = CalDAVStorage(**s)
displayname = subStorage.get_meta('displayname')
dbSet = self.db(self.db.collections.url==s['url'])
if not dbSet.isempty(): subscribed = dbSet.select()[0].subscribed
ret.append({'url': s['url'], 'subscribed': subscribed, 'name': displayname})
return ret
def update_collection_subscriptions(self, incomingJson):
for server in incomingJson['servers']:
for caldav in server['caldav_collections']:
self.db.collections.update_or_insert(self.db.collections.url==caldav['url'], url=caldav['url'], subscribed=caldav["subscribed"]);
class DBClient:
log = customlogger(globalconfig.logging_level)
def __init__(self, uri_db):
self.log.info("creating instance of DBClient: {0}".format(uri_db))
self.db = DAL(uri_db, migrate_enabled=False)
self.wells = self.db.define_table('wells',
Field('uuid'),
Field('project_uuid'),
Field('well_name'),
Field('uwi'),
Field('created_at'),
Field('modified_at'),
primarykey=['uuid'])
self.clients = self.db.define_table('clients',
Field('uuid'),
Field('company_name'),
Field('created_at'),
Field('modified_at'),
primarykey=['uuid'])
self.projects = self.db.define_table('projects',
Field('uuid'),
Field('client_uuid'),
Field('name'),
Field('created_at'),
Field('modified_at'),
Field('basin'),
Field('shapefile'),
primarykey=['uuid'])
@add_post_func_delay(0.5)
def insert_well(self, *args):
self.log.info("inserting well into DB..")
self.wells.insert(uuid=uuid.uuid4(),
well_name=args[0],
uwi=args[1],
created_at=datetime.datetime.now(),
modified_at=datetime.datetime.now())
self.db.commit()
@add_post_func_delay(0.5)
def insert_client(self, *args):
self.log.info("inserting client into DB..")
self.clients.insert(uuid=uuid.uuid4(),
company_name=args[0],
created_at=datetime.datetime.now(),
modified_at=datetime.datetime.now())
self.db.commit()
# TODO insert project has been modified on the front end such that there is no field called project type on DB table
# def insert_project(self, *args):
# self.insert_client(args[0])
# c_uuid = self.clients(company_name=args[0])['uuid']
# # self.db.projects.insert(uuid=uuid.uuid4(), name=args[1], client_uuid=c_uuid, basin='Midland', created_at=datetime.datetime.now(), modified_at=datetime.datetime.now())
# self.projects.insert(uuid=uuid.uuid4(), name=args[1], client_uuid=c_uuid, basin='midland', created_at=datetime.datetime.now(), modified_at=datetime.datetime.now())
# self.db.commit()
@add_post_func_delay(0.5)
def delete_table(self, tablename):
self.log.info("deleteing table {0}".format(tablename))
table = self.db.get(tablename)
table.truncate(mode='CASCADE')
self.db.commit()
def execute_sql(self, sql):
self.log.info("executing sql: '{0}'".format(sql))
return self.db.executesql(sql)
def close(self):
self.log.info("closing DB instance..")
self.db.close()
class dataSource:
db = "" # Conector Base de datos
# constructor
def __init__(self, host, user, passw, database, port, tipo_bd):
if tipo_bd == "sqlite":
self.db = DAL("sqlite://" + database + ".db")
elif tipo_bd == "mysql":
self.db = DAL("mysql://" + user + ":" + passw + "@" + host + "/" +
database + "")
elif tipo_bd == "postgres":
self.db = DAL("postgres://" + user + ":" + passw + "@" + host +
"/" + database + "")
elif tipo_bd == "sqlserver":
self.db = DAL("mssql4://" + user + ":" + passw + "@" + host + "/" +
database + "")
elif tipo_bd == "firebird":
self.db = DAL("firebird://" + user + ":" + passw + "@" + host +
"/" + database + "")
elif tipo_bd == "oracle":
self.db = DAL("oracle://" + user + ":" + passw + "@" + host + "/" +
database + "")
elif tipo_bd == "db2":
self.db = DAL("db2://" + user + ":" + passw + "@" + database + "")
"""
Ingres ingres://usuario:contraseña@localhost/nombrebd
Sybase sybase://usuario:contraseña@localhost/nombrebd
Informix informix://usuario:contraseña@nombrebd
Teradata teradata://DSN=dsn;UID=usuario;PWD=contraseña;DATABASE=nombrebd
Cubrid cubrid://usuario:contraseña@localhost/nombrebd
SAPDB sapdb://usuario:contraseña@localhost/nombrebd
IMAP imap://user:contraseña@server:port
MongoDB mongodb://usuario:contraseña@localhost/nombrebd
"""
# Vincular a una tabla 1 preexistente.
self.db.define_table(
"bienes",
# Indicarle a pyDAL cuál es la clave principal.
Field("id_bienes", type="id"),
Field("identificacion", type="integer"),
Field("tipo"),
Field("serie"),
Field("marca"),
Field("codigo", type="integer"),
Field("nombre"),
Field("ficha_formacion", type="integer"),
# Desactivar migraciones.
migrate=False)
# Vincular a una tabla 2 preexistente.
self.db.define_table(
"controles",
# Indicarle a pyDAL cuál es la clave principal.
Field("id_control", type="id"),
Field("identificacion", type="integer"),
Field("fechahe", type="datetime"),
Field("fechahs", type="datetime"),
Field("control"),
# Desactivar migraciones.
migrate=False)
# Vincular a una tabla 3 preexistente.
self.db.define_table(
"personal",
# Indicarle a pyDAL cuál es la clave principal.
Field("id_personal", type="id"),
Field("nombre"),
Field("identificacion", type="integer"),
Field("telefono", type="integer"),
Field("correo"),
Field("ficha_formacion", type="integer"),
Field("rol"),
# Desactivar migraciones.
migrate=False)
# Vincular a una table preexistente.
self.db.define_table(
"usuario",
# Indicarle a pyDAL cuál es la clave principal.
Field("id_usuario", type="id"),
Field("user"),
Field("clave"),
Field("rol"),
# Desactivar migraciones.
migrate=False)
""" Tipos de datos
string text blob boolean
integer double decimal(n, m) date
time datetime password upload
reference <tabla> list:string list:integer
list:reference <tabla> json bigint
big-id big-reference
"""
def query(self, sql):
try:
self.db.executesql(sql)
self.db.commit()
return True
except:
return False
def getData(self, sql):
q = self.db.executesql(sql)
self.db.commit()
return q
class FileListComparator(object):
def __init__(self):
self.tempdb = None
def trace(self, event, msg):
logging.info('%s, %s' % (event, msg))
def prepareTempDatabase(self, tdbname):
self.trace('prepare-temp-db-start', tdbname)
if tdbname == 'sqlite:memory:':
self.tempdb = DAL(tdbname)
for tableName in ['table1', 'table2', 'table1_unique', 'table2_unique']:
self.tempdb.define_table(tableName,
Field('fname', type='string', length=256),
Field('fsize', type='integer'),
Field('md5_hash', type='string', length=32),
Field('wtime', type='text'), # TODO(dan.dolbilov): switch to datetime
Field('fo_path', type='string', length=512),
Field('dk_name', type='string', length=256),
Field('sz_md5_name', type='string')
)
else:
self.trace('error', 'ERROR: tempdb <> memory is not implemented')
self.trace('prepare-temp-db-done', tdbname)
return self.tempdb
def prepareSnapshotTableFromImage2011(self, tableName, dbname):
# count rows in dest temp table
n = self.tempdb(self.tempdb[tableName].id > 0).count()
dk_name = dbname.replace('\\', '/').split('/')[-1].replace('.sqlite', '')
self.trace('prepare-table-start',
'table=[%s], count1 = %u, src = [%s], dk_name = [%s]' % (tableName, n, dbname, dk_name))
# connect to source database
db1 = DAL(dbname, migrate_enabled=False)
db1.define_table('Files',
Field('fileId', type='integer'),
Field('foId', type='integer'),
Field('fname', type='text'),
Field('fsize', type='integer'),
Field('ctime', type='text'),
Field('wtime', type='text'),
primarykey=['fileId']
)
db1.define_table('FilesMD5',
Field('fileId', type='integer'),
Field('md5', type='text'),
Field('calcTime', type='text'),
primarykey=['fileId']
)
db1.define_table('Folders',
Field('foId', type='integer'),
Field('path', type='text'),
Field('scanTime', type='text'),
primarykey=['foId']
)
files_with_md5 = db1((db1.Files.fileId == db1.FilesMD5.fileId) & (db1.Files.foId == db1.Folders.foId))
# copy data from source database to dest temp table
for x in files_with_md5.select():
self.tempdb[tableName].insert(
fname=x.Files.fname, fsize=x.Files.fsize, md5_hash=x.FilesMD5.md5,
wtime=x.Files.wtime, # TODO(dan.dolbilov): switch to datetime
fo_path=x.Folders.path, dk_name=dk_name,
sz_md5_name='%i_%s_%s' % (x.Files.fsize, x.FilesMD5.md5, x.Files.fname)
)
self.tempdb.commit()
# count rows in dest temp table
n = self.tempdb(self.tempdb[tableName].id > 0).count()
self.trace('prepare-table-done', 'table=[%s], count2 = %u' % (tableName, n))
def compare(self, dbnames1, dbnames2, t1unique, t2unique):
self.trace('compare-start', '')
self.prepareTempDatabase('sqlite:memory:')
if 0: # clear dest temp tables
for tableName in ['table1', 'table2', 'table1_unique', 'table2_unique']:
self.tempdb(self.tempdb[tableName].id > 0).delete()
for dbname1 in dbnames1:
self.prepareSnapshotTableFromImage2011('table1', 'sqlite://' + dbname1)
for dbname2 in dbnames2:
self.prepareSnapshotTableFromImage2011('table2', 'sqlite://' + dbname2)
tdb = self.tempdb
if t1unique:
uniqCount = uniqSize = 0
q2 = tdb()._select(tdb.table2.sz_md5_name)
for x in tdb(~tdb.table1.sz_md5_name.belongs(q2)).select():
self.trace('table1-unique',
'fname = [%s], fsize = %i, md5 = %s, wtime = [%s], fo_path = [%s], dk_name = [%s]' % (
x.fname, x.fsize, x.md5_hash, x.wtime, x.fo_path, x.dk_name))
uniqCount += 1
uniqSize += x.fsize
self.tempdb.table1_unique.insert(fname=x.fname, fsize=x.fsize, md5_hash=x.md5_hash,
wtime=x.wtime, fo_path=x.fo_path, dk_name=x.dk_name,
sz_md5_name=x.sz_md5_name)
self.trace('table1-uniq-counters', 'files = %i, bytes = %i' % (uniqCount, uniqSize))
if t2unique:
uniqCount = uniqSize = 0
q1 = tdb()._select(tdb.table1.sz_md5_name)
for x in tdb(~tdb.table2.sz_md5_name.belongs(q1)).select():
self.trace('table2-unique',
'fname = [%s], fsize = %i, md5 = %s, wtime = [%s], fo_path = [%s], dk_name = [%s]' % (
x.fname, x.fsize, x.md5_hash, x.wtime, x.fo_path, x.dk_name))
uniqCount += 1
uniqSize += x.fsize
self.tempdb.table2_unique.insert(fname=x.fname, fsize=x.fsize, md5_hash=x.md5_hash,
wtime=x.wtime, fo_path=x.fo_path, dk_name=x.dk_name,
sz_md5_name=x.sz_md5_name)
self.trace('table2-uniq-counters', 'files = %i, bytes = %i' % (uniqCount, uniqSize))
n1 = self.tempdb(self.tempdb['table1_unique'].id > 0).count()
n2 = self.tempdb(self.tempdb['table2_unique'].id > 0).count()
self.trace('compare-done', 'unique1 = %i, unique2 = %i' % (n1, n2))
class DBConnector:
def __init__(self):
self.db = DAL('sqlite://ccaccounts.db')
self.db.define_table('accounts', Field('name'),
Field('account_number', 'integer'),
Field('balance', 'integer'),
Field('balance_limit', 'integer'))
self.log = Logger()
def check_accounts(self, name):
if self.db(self.db.accounts.name == name).count() == 0:
self.log.log_message('NAE')
return False
else:
return True
def add_account(self, name, account_number, balance, balance_limit):
# check that non zero or negative numbers are being passed
# in the account number or in the balance limit
# checks if account name and account number already exist
# in the DB and returns error if the account exists
if self.db(self.db.accounts.name == name).count() > 0 or self.db(
self.db.accounts.account_number == account_number).count() > 0:
self.log.log_message('AAE')
else:
# inserts the row into the DB with the balance limit as the initial balance.
self.db.accounts.insert(name=name,
account_number=account_number,
balance=balance,
balance_limit=balance_limit)
self.db.commit()
def charge_account(self, name, amount):
# find row that matches the name given to do a check on balance limits
for row in self.db(self.db.accounts.name == name).select(
self.db.accounts.balance, self.db.accounts.balance_limit):
account_limit = row.balance_limit
balance = row.balance
if 'balance' in locals():
# get the sum of the balance and amount charged
new_balance = int(amount) + int(balance)
# make sure the balance will not exceed the balance limit.
if new_balance > account_limit:
self.log.log_message('SAL')
else:
self.db(self.db.accounts.name == name).update(
balance=new_balance)
self.db.commit()
else:
self.log.log_message('NBRCH')
pass
def credit_account(self, name, amount):
# find row that matches the name given to do a check on balance limits
for row in self.db(self.db.accounts.name == name).select(
self.db.accounts.balance, self.db.accounts.balance_limit):
balance = row.balance
if 'balance' in locals():
# get the difference of the balance and amount credited
new_balance = int(balance) - int(amount)
self.db(self.db.accounts.name == name).update(balance=new_balance)
self.db.commit()
else:
self.log.log_message('NBRCR')
pass
def account_balances(self):
if __name__ == '__main__':
for row in self.db().select(self.db.accounts.name,
self.db.accounts.account_number,
self.db.accounts.balance,
orderby=self.db.accounts.name):
name = row.name
acct_number = row.account_number
balance = row.balance
print "{}, {}: {}".format(name, acct_number, balance)
# db.define_table(
# 'student',
# Field('name'),
# Field('age')
# )
# db.student.insert(
# name="小云",
# age="20"
# )
# db.commit()
# all_students = db(db.student.id > 0).select()
# print(all_students)
# pass
if __name__ == '__main__':
# 连接数据库，默认将使用SQLite数据库引擎，将
# 生成 dummy.db 文件，如果要修改保存的文件
# 名为 data.db，写法如：DAL("sqlite://data.db")
db = DAL()
# 定义名为 student 的表，pyDAL会自动生成
# 自增 id 列
db.define_table('student', Field('name'), Field('age'))
# 向 student 表中插入一条数据
db.student.insert(name="小云", age="20")
# 将数据保存
db.commit()
# 从 student 表中查询出所有数据
all_students = db(db.student.id > 0).select()
print(all_students)
pass
class DataBase:
def __init__(self,
username,
password,
host='localhost',
dbname='postgres',
port=5432,
pool_size=5):
self.schema = 'soad'
self.username = username
self.host = host
self.port = port
self.dbname = dbname
self.folder = 'Resources' + os.sep + 'database'
os.environ["PGPASSWORD"] = password
self.password = password
self.dbinfo = 'postgres://' + username + ':' + password + '@' + host + ':' + str(
port) + '/' + self.dbname
self.db = DAL(self.dbinfo,
folder=self.folder,
pool_size=pool_size,
migrate=False,
attempts=1)
self.connection = None
self.threadpool = QThreadPool()
def busca_registro(self,
nome_tabela,
coluna,
valor='',
operador='=',
filtro=None):
if filtro == '' or filtro is None:
filtro = '1=1'
sql = "select * from " + self.schema + ".fnc_buscar_registro(" \
+ "p_tabela=>" + "'" + nome_tabela + "'" \
+ ", p_coluna=>" + "'" + coluna + "'" \
+ ", p_valor=>" + "'" + valor + "'" \
+ ", p_operador=>" + "'" + operador + "'" \
+ ", p_filtro=>" + "'" + filtro + "'" \
+ ");"
return self.execute_sql(sql)
def get_registro(self, fnc, campo, valor):
sql = "select * from " + self.schema + "." + fnc + "(" \
+ "p_" + campo + "=>" + "'" + str(valor) + "'" \
+ ");"
return self.execute_sql(sql)
def call_procedure(self, schema='soad', params=None):
if not params:
return
# Remove parametros vazios
vazio = []
for param in params["params"].items():
if param[1] == '':
vazio.append(param[0])
logging.info('[DataBase] Parâmetros vazios: ' + str(vazio))
for i in range(len(vazio)):
del params["params"][vazio[i]]
params = json.dumps(params, ensure_ascii=False)
sql = "select * from " + schema + ".fnc_chamada_de_metodo(" \
+ "p_json_params=>" + "'" + params + "'" \
+ ");"
return self.execute_sql(sql)
def execute_sql(self, sql, as_dict=True):
retorno = list()
try:
retorno = self.db.executesql(query=sql, as_dict=as_dict)
self.db.commit()
logging.debug('[DataBase] status=' + str(True))
logging.debug('[DataBase] sql=' + str(sql))
logging.debug('[DataBase] retorno=' + str(retorno))
prc = True, retorno, str(self.db._lastsql)
except Exception as e:
self.db.rollback()
logging.debug('[DataBase] status=' + str(False))
logging.debug('[DataBase] sql=' + str(sql))
logging.debug('[DataBase] exception=' + str(e))
retorno.append(e)
prc = False, retorno, str(sql)
except:
e = 'Exceção não tratada'
logging.debug('[DataBase] status=' + str(False))
logging.debug('[DataBase] sql=' + str(sql))
logging.debug('[DataBase] exception2=' + str(e))
retorno.append(e)
prc = False, e, str(sql)
return prc
def __conectar_banco__(self, progress_callback):
try:
self.connection = self.db.__call__()
#progress_callback.emit(100)
except Exception as e:
logging.debug('[DataBase] ' + str(e))
os.environ["PGPASSWORD"] = ''
pass
#progress_callback.emit(0)
return self
def definir_schema(self, schema):
self.schema = schema
self.execute_sql("SET search_path TO " + self.schema, as_dict=False)
def fechar_conexao(self):
self.db.close()
def progress_fn(self, n):
print("%d%% done" % n)
def retorno_conexao(self, s):
self.connection = s
def thread_complete(self):
logging.debug('[DataBase] Thread Completed')
def abrir_conexao(self):
# Pass the function to execute
worker = Worker(
self.db.__call__
) # Any other args, kwargs are passed to the run function
worker.signals.result.connect(self.retorno_conexao)
worker.signals.finished.connect(self.thread_complete)
#worker.signals.progress.connect(self.progress_fn)
# Execute
self.threadpool.start(worker)
db.define_table('persons',
Field('name'),
Field('age')
)
amy = db.persons.insert( name='Amy', age=52 )
bob = db.persons.insert( name='Bob', age=48 )
cat = db.persons.insert( name='Cat', age=23 )
dan = db.persons.insert( name='Dan', age=17 )
edd = db.persons.insert( name='Edd', age=77 )
fan = db.persons.insert( name='Fan', age=65 )
gin = db.persons.insert( name='Gin', age=27 )
hil = db.persons.insert( name='Hil', age=30 )
iri = db.persons.insert( name='Iri', age=62 )
jac = db.persons.insert( name='Jac', age=18 )
db.commit()
# Export the 'persons' database
with open( 'persons.csv', 'wb' ) as f:
f.write( str(db(db.persons.id).select()) )
# Export only the young persons
with open( 'young-people.csv', 'wb') as f:
people = db( db.persons.age <= 30 ).select()
f.write( str( people ) )
# Let's make another table and export mutliple tables
db.define_table('point2d',
Field('x',type='double'),
Field('y',type='double')