Beispiel #1
0
    def get_adatok(self, para):
        print(para)
        # self.adatok[0]  : p1_id
        # self.adatok[1]  : name1
        # self.adatok[2]  : p2_id
        # self.adatok[3]  : name2
        # self.adatok[4]  : start_score1
        # self.adatok[5]  : start_score2
        # self.adatok[6]  : match
        # self.adatok[7]  : legs
        # self.adatok[8]  : sets
        # self.adatok[9]  : dátum

        self.adatok = []
        name1_id = int(para[0])
        self.adatok.append(name1_id)
        query_name1 = QSqlQuery(f"select player_name from players where player_id={name1_id}", db=db)
        query_name1.exec_()
        while query_name1.next():
            name1 = query_name1.value(0)
        self.adatok.append(name1)
        name2_id = int(para[1])
        self.adatok.append(name2_id)
        query_name2 = QSqlQuery(f"select player_name from players where player_id={name2_id}", db=db)
        query_name2.exec_()
        while query_name2.next():
            name2 = query_name2.value(0)
        self.adatok.append(name2)

        start_score1 = int(para[2])
        start_score2 = int(para[3])
        match = int(para[7])
        setek = int(para[5])
        self.adatok.append(start_score1)
        self.adatok.append(start_score2)
        self.adatok.append(match)
        # Kell a max set-number, ezt beállítani a sets változóba
        # Ciklussal minden set-ben megnézni a max leg-numbert, és ezeket append-elni a legs[]-hez
        # Végül leg, set sorrendben append-elni az adatokhoz
        legs = []
        sets = 0
        query2 = QSqlQuery(
            f"select max(set_id) as max_set from matches where match_id={match}", db=db)
        query2.exec_()
        while query2.next():
            sets = int(query2.value(0))

        for i in range(1, sets + 1):
            query = QSqlQuery(f"select max(leg_id) as max_leg from matches where match_id={match} and set_id={i}", db=db)
            query.exec_()
            while query.next():
                legs.append(int(query.value(0)))
                # sets.append(int(query.value(1)))

        self.adatok.append(legs)
        self.adatok.append(sets)

        datum = para[6][:16]
        self.adatok.append(datum)
        print(self.adatok)
Beispiel #2
0
def readSQL(sql_text, params=None, named=False, check_unique=False):
    if params is None:
        params = []
    query = QSqlQuery(db_connection())
    query.setForwardOnly(True)
    if not query.prepare(sql_text):
        logging.error(
            f"SQL prep: '{query.lastError().text()}' for query '{sql_text}' | '{params}'"
        )
        return None
    for param in params:
        query.bindValue(param[0], param[1])
    if not query.exec_():
        logging.error(
            f"SQL exec: '{query.lastError().text()}' for query '{sql_text}' | '{params}'"
        )
        return None
    if query.next():
        res = readSQLrecord(query, named=named)
        if check_unique and query.next():
            logging.warning(
                g_tr('DB', "More than 1 record matched SQL query ") +
                f"'{sql_text}' | '{params}'")
            return None  # More then one record in result when only one expected
        return res
    else:
        return None
Beispiel #3
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    def getStatusCode(self):
        if self.statusCode == 8:
            query = QSqlQuery("SELECT COUNT(*) FROM Student JOIN "
                            "Attendance ON Student.id = Attendance.id "
                            "AND Attendance.date = (SELECT date('now')) "
                            "AND Attendance.lecture_no = 1")
            query.next()
            self.ocount = query.value(0)
            self.oCount_changed.emit()

        return self.statusCode
Beispiel #4
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    def change_data(self, szum=None):
        self.data = None
        self.data = szum
        self.name1 = self.data[1]
        self.name2 = self.data[3]
        match_id = self.data[6]
        p1_id = self.data[0]
        p2_id = self.data[2]
        # Végeredmény
        self.won1 = 0
        self.won2 = 0
        self.avg1 = self.avg2 = 0
        eredmenyek_model = QSqlQueryModel()
        eredmenyek_query = QSqlQuery(f"select * from matches where match_id={match_id}", db=db)
        eredmenyek_model.setQuery(eredmenyek_query)
        for x in range(1, self.data[8] + 1):
            l1 = l2 = 0
            for i in range(eredmenyek_model.rowCount()):  # csak set-eket összesítünk
                if eredmenyek_model.record(i).value(2) == x:
                    if eredmenyek_model.record(i).value(3) == p1_id:
                        l1 += 1
                    else:
                        l2 += 1
            # print("Set: ", x, "L1: ", l1, "L2: ", l2)
            if self.data[8] == 1:
                self.won1 = l1
                self.won2 = l2
            else:
                if l1 > l2:
                    self.won1 += 1
                else:
                    self.won2 += 1
        # Átlagok
        db1 = db2 = sum1 = sum2 = 0
        for x in range(1, self.data[8] + 1):
            for leg in range(1, self.data[7][x - 1] + 1):
                query = QSqlQuery(f"select max(round_number) as maxround, sum(points) as sumpont from dobas where leg_id={leg} and set_id={x} and match_id={match_id} and player_id={p1_id}")
                query.exec_()
                while query.next():
                    db1 += query.value(0)
                    sum1 += query.value(1)
                query2 = QSqlQuery(f"select max(round_number) as maxround, sum(points) as sumpont from dobas where leg_id={leg} and set_id={x} and match_id={match_id} and player_id={p2_id}")
                query2.exec_()
                while query2.next():
                    db2 += query2.value(0)
                    sum2 += query2.value(1)
        self.avg1 = round(sum1 / db1 * 3, 2)
        self.avg2 = round(sum2 / db2 * 3, 2)

        self.update()
Beispiel #5
0
    def ins_tb(self, start_date, end_date):
        q_list = []
        for key in self.tb_name.keys():
            tb_sn = 'LOGS_' + key
            query = QSqlQuery(self.db)

            sql = f'''SELECT LOGS_TIME, LOGS_CHONE, LOGS_CHTWO, LOGS_CHTHREE, LOGS_CHFOUR, BAT_DC_STATE FROM {tb_sn} 
                        where LOGS_TIME > #{start_date}# AND LOGS_TIME < #{end_date}#
                                        ORDER BY LOGS_TIME;
                                    '''
            query.exec_(sql)
            #     q_list.append(query)
            #     print(sql)
            # return q_list

            # 如果这个时间段没有数据,就insert数据
            if not query.next():
                # print(self.tb_name[sn][0], self.f_dt(start_time), self.f_dt(end_time))
                # self.myinsert(tb_sn, start_time, end_time)
                print(f'{self.tb_name[key][0]}没有数据,开始写入数据……')
                self.myinsert(tb_sn, start_date, end_date)
            else:
                print(
                    tb_sn, self.tb_name[key][0],
                    query.value('LOGS_TIME').toPython().strftime(
                        '%Y/%#m/%d %H:%M'))
Beispiel #6
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 def get_torrent(self):
     db = self.get_db()
     try:
         if not db.isOpen():
             db.open()
         query = QSqlQuery(
             query=
             "select * from torrents where (hash is null) and (last_checked is null) order by id desc limit 1;",
             db=db)
         topic = {}
         while query.next():
             topic['id'] = query.value('id')
             topic['forum'] = query.value('forum')
             topic['title'] = query.value('title')
             topic['seed'] = query.value('seed')
             topic['leech'] = query.value('leech')
             topic['published'] = query.value('published')
             topic['last_modified'] = query.value('last_modified')
             topic['hash'] = query.value('hash')
             topic['downloads'] = query.value('downloads')
             topic['last_checked'] = query.value('last_checked')
             topic['user_id'] = query.value('user_id')
         return topic
     finally:
         db.close()
    def importSteamLibrary(self):
        apiKey, ok = QInputDialog.getText(self, "Import Steam Library", "Enter Steam API Key:")
        if ok and not (apiKey.isspace() or apiKey == ""):
            steamID, ok = QInputDialog.getText(self, "Import Steam Library", "Enter Steam User ID:")
            if ok and not (steamID.isspace() or steamID == ""):
                try:
                    games = getSteamLibrary(apiKey, steamID)
                except (PermissionError, ValueError) as e:
                    msgBox = QMessageBox(QMessageBox.Critical, "Error", "An error occured.")
                    msgBox.setInformativeText(str(e))
                    msgBox.exec_()
                else:
                    if "Steam" not in self.allPlatforms:
                        self.allPlatforms.add("Steam")
                        self.allRegions.add("Steam")
                        self.filterDock.updatePlatforms(sorted(self.allPlatforms, key=str.lower))
                        self.filterDock.updateRegions(sorted(self.allRegions, key=str.lower))
                        self.gamesTableView.addData(games)
                    else:  # Only add games not already in collection
                        existingGames = []
                        query = QSqlQuery()
                        query.exec_("SELECT Name from games WHERE Region='Steam'")
                        while query.next():
                            existingGames.append(query.value(0))

                        for game in games:
                            if game["name"] not in existingGames:
                                self.gamesTableView.addData(game)
                    self.overview.updateData(self.gamesTableView)
                    self.randomizer.updateLists(self.gamesTableView.ownedItems(),
                                                sorted(self.allPlatforms, key=str.lower),
                                                sorted(self.allGenres, key=str.lower))
                    self.search()
Beispiel #8
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    def __init__(self, db_path):

        self.tb_name = {}
        self.db = ''
        # 连接数据库
        self.db = QSqlDatabase.addDatabase("QODBC")
        self.db.setDatabaseName(
            "DRIVER={Microsoft Access Driver (*.mdb, *.accdb)};FIL={MS Access};DBQ="
            + db_path)
        # db.setUserName('sa')
        self.db.setPassword('20121110')
        # 根据ok的值判断数据库是否连接成功
        # self.ok = db.open()
        if self.db.open():
            query = QSqlQuery(self.db)
            query.exec_(
                "SELECT LOGGER_SN, LOGGER_NAME,  CHONE_HIGH , CHONE_LOW,  CHTWO_HIGH, CHTWO_LOW FROM TO_LOGGER_INFO"
            )
            while query.next():
                # if self.tb_name[query.value(0)]!='H201403057' and self.tb_name[query.value(0)]!='HT20143221':
                self.tb_name[query.value(0)] = (query.value(1), query.value(2),
                                                query.value(3), query.value(4),
                                                query.value(5))
            del (self.tb_name['H201403057'])
            del (self.tb_name['HT20143221'])
Beispiel #9
0
def get_new_offer_number(user_id: int) -> int:
    text = f"SELECT public.get_new_offer_number({user_id})"
    query = QSqlQuery(text)
    if not query.next():
        logging.error(f"Query failed: {text}")
        logging.error(query.lastError().text())
        raise RuntimeError("Error accessing database")
    return query.record().value(0)
Beispiel #10
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def get_merchandise_record(merchandise_id: int) -> QSqlRecord:
    text = f"select * from merchandise_view('{date.today()}') where merchandise_id = '{merchandise_id}'"
    query = QSqlQuery(text)
    if not query.next():
        logging.error(f"Query failed: {text}")
        logging.error(query.lastError().text())
        raise RuntimeError("Error accessing database")
    return query.record()
Beispiel #11
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    def LoadDownload(self, owner):
        query = QSqlQuery(self.db)
        suc = query.exec_("""
            select * from download
            """)
        if not suc:
            Log.Warn(query.lastError().text())
        downloads = {}
        while query.next():
            # bookId, downloadEpsIds, curDownloadEpsId, curConvertEpsId, title, savePath, convertPath
            info = DownloadInfo(owner)
            info.bookId = query.value(0)
            data = json.loads(query.value(1))
            info.downloadEpsIds = [int(i) for i in data]
            info.curDownloadEpsId = query.value(2)
            info.curConvertEpsId = query.value(3)
            info.title = query.value(4)
            info.savePath = query.value(5)
            info.convertPath = query.value(6)
            info.status = query.value(7)
            info.convertStatus = query.value(8)
            downloads[info.bookId] = info

        query = QSqlQuery(self.db)
        suc = query.exec_("""
            select * from download_eps
            """)
        if not suc:
            Log.Warn(query.lastError().text())
        while query.next():
            # bookId, epsId, epsTitle, picCnt, curPreDownloadIndex, curPreConvertId

            bookId = query.value(0)
            task = downloads.get(bookId)
            if not task:
                continue
            info = DownloadEpsInfo(task)
            info.epsId = query.value(1)
            info.epsTitle = query.value(2)
            info.picCnt = query.value(3)
            info.curPreDownloadIndex = query.value(4)
            info.curPreConvertId = query.value(5)
            task.epsInfo[info.epsId] = info

        return downloads
Beispiel #12
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def get_var(key: str) -> str:
    text = f"SELECT value FROM public.vars WHERE key = '{key}'"
    query = QSqlQuery(text)
    if not query.next():
        logging.error(f"Query failed: {text}")
        logging.error(query.lastError().text())
        raise RuntimeError("Error accessing database")
    record = query.record()
    return record.value("value")
Beispiel #13
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 def load_data(self, tornaid):
     self.clear()
     query = QSqlQuery(
         f"select * from torna_resztvevok where torna_id={tornaid}")
     query.exec_()
     while query.next():
         item = QListWidgetItem(query.value(1))
         item.setData(1, query.value(0))
         self.addItem(item)
Beispiel #14
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def get_password() -> str:
    """Return the password from the database."""
    query = QSqlQuery(QSqlDatabase.database())
    query.exec_("select password from credentials")

    if query.next():
        password = query.value(0)
        query.finish()
        return password
Beispiel #15
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 def select(self, query):
     if self.db.open():
         res = []
         sql_query = QSqlQuery()
         sql_query.exec_(query)
         while sql_query.next():
             res.append(sql_query.value(0))
         self.db.close()
         return res
Beispiel #16
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    def torna_valasztas(self, i):
        self.torna_id = self.tournaments.itemData(i)
        torna = QSqlQuery(
            f"select * from torna_settings where torna_id={self.torna_id}")
        torna.exec_()
        while torna.next():
            self.csoportok_szama = torna.value(3)
            self.sorok_szama = torna.value(4)
            self.variant = torna.value(5)
            self.sets = torna.value(7)
            self.legsperset = torna.value(8)
            self.nyereshez_kell = torna.value(8)
            self.pont_gyozelem = torna.value(11)
            self.pont_vereseg = torna.value(13)

        self.tablak = []
        for cs in range(self.csoportok_szama):
            tablasor = []
            for sor in range(self.sorok_szama):
                tablasor.append(0)
            self.tablak.append(tablasor)
        query2 = QSqlQuery(
            f"select * from torna_tablak where torna_id={self.torna_id}")
        query2.exec_()
        while query2.next():
            self.tablak[query2.value(2)][query2.value(3)] = query2.value(1)
        self.nevek = []
        for cs in range(self.csoportok_szama):
            neveksor = []
            for sor in range(self.sorok_szama):
                neveksor.append("")
            self.nevek.append(neveksor)
        query2 = QSqlQuery(
            f"select player_id, player_name from torna_resztvevok where torna_id={self.torna_id}"
        )
        query2.exec_()
        while query2.next():
            for x in range(self.csoportok_szama):
                for y in range(self.sorok_szama):
                    if query2.value(0) == self.tablak[x][y]:
                        self.nevek[x][y] = query2.value(1)

        self.create_widgets()
        self.set_layout()
Beispiel #17
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 def load(self, lst):
     query = QSqlQuery()
     query.exec_("SELECT task from " + lst + ";")
     while query.next():
         print(query.value(0))
         if lst == "priority":
             self.ui.priority.addItem(query.value(0))
         elif lst == "urgent":
             self.ui.urgent.addItem(query.value(0))
         elif lst == "dueDate":
             self.ui.dueDate.addItem(query.value(0))
Beispiel #18
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def create_merchandise(code: str, description: str, by_metre: bool,
                       discount_group: str, price: float) -> int:
    unit = 'm' if by_metre else 'pc.'
    query_text = f"SELECT public.create_merchandise('{code}', '{description}', '{unit}', '{discount_group}', {price})"
    query = QSqlQuery(query_text)
    if not query.next():
        raise RuntimeError(
            f"Query {query_text} failed with:\n{query.lastError().text()}")
    merchandise_id = query.value(0)
    if merchandise_id < 0:
        raise RuntimeError(f"Query {query_text} failed on server side")
    return merchandise_id
Beispiel #19
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    def getValue(self, key):
        get_query = QSqlQuery(self.db)
        get_query.setForwardOnly(True)
        get_query.prepare("SELECT value FROM settings WHERE name=:key")

        value = None
        get_query.bindValue(":key", key)
        if not get_query.exec_():
            logging.fatal(f"Failed to get settings for key='{key}'")
            return value
        if get_query.next():
            value = get_query.value(0)
        return value
Beispiel #20
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    def torna_valasztas(self, i):
        self.torna_id = self.tournaments.itemData(i)
        torna = QSqlQuery(
            f"select * from torna_settings where torna_id={self.torna_id}")
        torna.exec_()
        while torna.next():
            self.csoportok_szama = torna.value(3)
            self.sorok_szama = torna.value(4)
            self.variant = torna.value(5)
            self.sets = torna.value(7)
            self.legsperset = torna.value(8)

        self.create_widgets()
        self.set_layout()
Beispiel #21
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class DataBase:
    def __init__(self):
        db_path = os.path.join(os.path.dirname(os.path.realpath(__file__)),
                               'data.db')
        self.db = QSqlDatabase.addDatabase('QSQLITE')
        self.db.setDatabaseName(db_path)
        self.db.open()
        self.query = QSqlQuery()

    def select(self, fields: tuple, table: str, condition=None):
        """
        select items from table
        
        For example, to execute the sql state 
        `select name from Teacher where tid=1`,
        use `select(fields=('name',),
        table='Teacher', condition='tid=1')`

        params
        fields: tuple of str, such as ('id', 'name', 'type')
        table: str, name of target table
        condition: str, such as 'id=1'

        returns a list of dict
        """
        state = 'select {fields} from {table}'.format(fields=', '.join(fields),
                                                      table=table)
        if condition is not None:
            state += ' where {con}'.format(con=condition)
        res = []
        self.query.clear()
        self.query.exec_(state)
        print(state)
        while self.query.next():
            item = {f: self.query.value(f) for f in fields}
            res.append(item)
        return res

    def insert(self, table: str, kv: dict):
        state = 'insert into {t} ({f}) values ({v})'.format(
            t=table, f=', '.join(kv.keys()), v=', '.join(kv.values()))
        print(state)
        return self.query.exec_(state)

    def __add_quote(self, s: str):
        return '"{}"'.format(s)

    def last_error(self):
        return self.query.lastError()
Beispiel #22
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def readSQL(db, sql_text, params = []):
    query = QSqlQuery(db)
    query.setForwardOnly(True)
    if not query.prepare(sql_text):
        logging.error(f"SQL prep: '{query.lastError().text()}' for query '{sql_text}' with params '{params}'")
        return None
    for param in params:
        query.bindValue(param[0], param[1])
    if not query.exec_():
        logging.error(f"SQL exec: '{query.lastError().text()}' for query '{sql_text}' with params '{params}'")
        return None
    if query.next():
        return readSQLrecord(query)
    else:
        return None
 def show_current_players(self):
     query = QSqlQuery("select max(player_id) from torna_resztvevok")
     query.exec_()
     while query.next():
         self.first_new_id = int(query.value(0)) + 1
     print(self.first_new_id)
     self.add_new = QPushButton("Új")
     self.add_new.clicked.connect(self.uj_ember)
     self.current_players = QListWidget()
     self.current_players.setFixedHeight(470)
     self.current_players.setFixedWidth(150)
     self.current_players.setSortingEnabled(True)
     self.gomb_nev_layout.addWidget(self.add_new)
     self.current_players.itemDoubleClicked.connect(self.remove_resztvevo)
     self.gomb_nev_layout.addWidget(self.current_players)
Beispiel #24
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 def LoadHistory(self):
     query = QSqlQuery(self.db)
     query.exec_("""
         select * from history
         """)
     while query.next():
         # bookId, name, epsId, index, url, path
         info = QtHistoryData()
         info.bookId = query.value(0)
         info.name = query.value(1)
         info.epsId = query.value(2)
         info.picIndex = query.value(3)
         info.url = query.value(4)
         info.path = query.value(5)
         info.tick = query.value(6)
         self.history[info.bookId] = info
     pass
Beispiel #25
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 def get_forum_to_scan(self) -> object:
     db = self.get_db()
     try:
         if not db.isOpen():
             db.open()
         query = QSqlQuery(query="select * from forums_to_scan_2 limit 1;",
                           db=db)
         forum = {}
         while query.next():
             forum['id'] = query.value(0)
             forum['title'] = query.value(3)
             forum['delta'] = query.value('delta')
         return forum
     except Exception as ex:
         print(str(ex))
     finally:
         db.close()
Beispiel #26
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 def get_forum(self, id):
     db = self.get_db()
     try:
         if not db.isOpen():
             db.open()
         query = QSqlQuery(db=db)
         query.prepare("select * from forums where id=:id;")
         query.bindValue(':id', id)
         query.exec_()
         forum: Dict[str, Optional[Any]] = {}
         while query.next():
             forum['id'] = query.value('id')
             forum['category'] = query.value('category')
             forum['title'] = query.value('title')
         return forum
     finally:
         db.close()
Beispiel #27
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    def up_table(self, start_date, end_date):
        query = QSqlQuery(self.db)
        for sn in self.tb_name.keys():

            tb_sn = 'LOGS_' + sn
            # one_high最高温度,one_low最低温度,two_high最高湿度,two_low最低湿度
            one_high = float(self.tb_name[sn][1])
            one_low = float(self.tb_name[sn][2])
            two_high = float(self.tb_name[sn][3])
            two_low = float(self.tb_name[sn][4])
            # 查询出温度大于或者小于范围 1 度的或者湿度大于、小于1%。
            sql = f'''SELECT LOGS_TIME, LOGS_CHONE, LOGS_CHTWO 
                                FROM {tb_sn} 
                                where  (LOGS_CHONE > {one_high + 1} or LOGS_CHONE < {one_low - 1} or LOGS_CHTWO > {two_high + 1} OR LOGS_CHTWO < {two_low - 1}) and LOGS_TIME between #{start_date}# and #{end_date}#'
                            '''
            if (query.exec_(sql)):
                print('修改所有表' + sql)
            q = QSqlQuery(self.db)
            j = 0
            while query.next():
                t = query.value(0).toString('yyyy/M/d h:mm:ss')
                one = float(query.value(1))
                two = float(query.value(2))
                # 温度超标
                if (one > one_high or one < one_low) and (two < two_high
                                                          and two > two_low):
                    if abs(one_low - one) < abs(one_high - one):
                        sql = f"update {tb_sn} set LOGS_CHONE = {random.uniform(one_low, one_low + 2)} WHERE  LOGS_TIME = #{t}#"
                        q.exec_(sql)
                        print(sql)
                    else:
                        sql = f"update {tb_sn} set LOGS_CHONE = {random.uniform(one_high - 1, one_high)} WHERE  LOGS_TIME = #{t}#"
                        q.exec_(sql)
                        print(sql)
                # 湿度超标
                elif (one < one_high and one > one_low) and (two > two_high
                                                             or two < two_low):
                    if abs(one_low - one) < abs(one_high - one):
                        sql = f"update {tb_sn} set LOGS_CHTWO = {random.uniform(two_low, two_low + 2)} WHERE  LOGS_TIME = #{t}#"
                        q.exec_(sql)
                        print(sql)
                    else:
                        sql = f"update {tb_sn} set LOGS_CHTWO = {random.uniform(two_high - 1, two_high)} WHERE  LOGS_TIME = #{t}#"
                        q.exec_(sql)
                        print(sql)
Beispiel #28
0
 def get_categories(self):
     db = self.get_db()
     try:
         if not db.isOpen():
             db.open()
         query = QSqlQuery(db=db)
         query.prepare("select * from categories;")
         query.exec_()
         categories: List[Dict[str, None]] = []
         while query.next():
             category = {
                 'id': query.value('id'),
                 'title': query.value('title')
             }
             categories.append(category)
         return categories
     finally:
         db.close()
Beispiel #29
0
 def get_new_user(self):
     db = self.get_db()
     try:
         if not db.isOpen():
             db.open()
         query = QSqlQuery(
             query=
             'select distinct user_id from torrents as t left join users as u on t.user_id=u.id where u.id is null and user_id > 0 limit 1;',
             db=db)
         user = {}
         while query.next():
             user['id'] = query.value('user_id')
             # user['name'] = query.value('name')
             # user['registered'] = query.value('registered')
             # user['nation'] = query.value('nation')
         return user
     finally:
         db.close()
Beispiel #30
0
 def get_category(self, id):
     category: Dict[str, Optional[Any]] = {}
     if id is None:
         category['id'] = id
         category['title'] = '<UNKNOWN>'
     db = self.get_db()
     try:
         if not db.isOpen():
             db.open()
         query = QSqlQuery(db=db)
         query.prepare("select * from categories where id=:id;")
         query.bindValue(':id', id)
         query.exec_()
         while query.next():
             category['id'] = query.value('id')
             category['title'] = query.value('title')
         return category
     finally:
         db.close()