71 lines
2.4 KiB
Python
71 lines
2.4 KiB
Python
# -*- coding:utf-8 -*-
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#############################################################################
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# Copyright (c) 2020 Huawei Technologies Co.,Ltd.
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#
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# openGauss is licensed under Mulan PSL v2.
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# You can use this software according to the terms
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# and conditions of the Mulan PSL v2.
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# You may obtain a copy of Mulan PSL v2 at:
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#
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# http://license.coscl.org.cn/MulanPSL2
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#
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# THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS,
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# WITHOUT WARRANTIES OF ANY KIND,
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# EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
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# MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
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# See the Mulan PSL v2 for more details.
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# ----------------------------------------------------------------------------
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# Description : Result.py is a utility to store search result from database
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#############################################################################
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import os
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import sys
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from ctypes import *
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sys.path.append(sys.path[0] + "/../../")
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from gspylib.common.Common import DefaultValue
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class sqlResult():
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"""
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Class for storing search result from database
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"""
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def __init__(self, result):
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"""
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Constructor
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"""
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self.resCount = 0
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self.resSet = []
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self.result = result
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def parseResult(self):
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"""
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function : get resCount and resSet from result
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input:NA
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output:NA
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"""
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try:
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libpath = os.path.join(DefaultValue.getEnv("GAUSSHOME"), "lib")
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sys.path.append(libpath)
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libc = cdll.LoadLibrary("libpq.so.5.5")
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libc.PQntuples.argtypes = [c_void_p]
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libc.PQntuples.restype = c_int
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libc.PQnfields.argtypes = [c_void_p]
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libc.PQnfields.restype = c_int
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libc.PQgetvalue.restype = c_char_p
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ntups = libc.PQntuples(self.result)
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nfields = libc.PQnfields(self.result)
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libc.PQgetvalue.argtypes = [c_void_p, c_int, c_int]
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self.resCount = ntups
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for i in range(ntups):
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tmpString = []
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for j in range(nfields):
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paramValue = libc.PQgetvalue(self.result, i, j)
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if (paramValue is not None):
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tmpString.append(string_at(paramValue).decode())
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else:
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tmpString.append("")
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self.resSet.append(tmpString)
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except Exception as e:
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raise Exception("%s" % str(e))
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