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96 lines
2.8 KiB
96 lines
2.8 KiB
import basic.program
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import utils.config_tool
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import utils.db_abstract
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import mysql.connector
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class DbFcts(utils.db_abstract.DbFcts):
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"""
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This interface defines each necessary connection to any kind of database.
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The specific technique how to connect to the concrete DBMS has to be implemented in the specific tool.
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"""
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def __init__(self):
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pass
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def selectRows(self, table):
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""" method to select rows from a database
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statement written in sql """
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tdata={}
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job = basic.program.Job.getInstance()
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verify = -1+job.getDebugLevel("db_tool")
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cmd = "SELECT * FROM "+table+";"
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#mycursor = self.getConnector()
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#mycursor.execute(cmd)
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#myresult = mycursor.fetchall()
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tdata["_header"] = []
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for f in self.comp.conf["ddl"][table]["fields"]:
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tdata["_header"].append(f)
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myresult = []
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for x in myresult:
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print(x)
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self.comp.m.logInfo(cmd)
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return tdata
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def deleteRows(self, table):
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""" method to delete rows from a database
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statement written in sql """
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job = basic.program.Job.getInstance()
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verify = -1+job.getDebugLevel("db_tool")
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cmd = "DELETE FROM "+table+";"
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self.comp.m.logInfo(cmd)
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def updateRows(self, statement):
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""" method to delete rows from a database
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statement written in sql """
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raise Exception("method is not implemented")
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def insertRows(self, table, rows):
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""" method to insert rows into a database
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the rows will be interpreted by the ddl of the component
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"""
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job = basic.program.Job.getInstance()
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verify = -1+job.getDebugLevel("db_tool")
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cmd = "INSERT INTO "+table+";"
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header = ""
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for h in self.comp.conf["ddl"][table]["fields"]:
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print(h)
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header += ", "+h
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cmd += " (" + header[1:]+" ) "
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rowvalues = ""
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for r in rows:
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print("r-----------------")
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print(r)
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rowvalues = ""
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cmd += "\n ( "
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for h in self.comp.conf["ddl"][table]["fields"]:
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print("h "+h)
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if (h in r):
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rowvalues += ", "+self.getDbValue(self.comp.conf["ddl"][table]["data"][h], r[h])
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else:
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rowvalues += ", "+self.getDbValue(self.comp.conf["ddl"][table]["data"][h], "")
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print("rv " + rowvalues)
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cmd += rowvalues[1:]+" ),"
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cmd = cmd[0:-1]+";"
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self.comp.m.logInfo(cmd)
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def getConnector(self):
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""" add-on-method to get the connector
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this method should only called by the class itself """
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job = basic.program.Job.getInstance()
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mydb = mysql.connector.connect(
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host = "localhost",
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user = "datest",
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password = "Advent!2021",
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database = "datest"
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)
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return mysql
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@staticmethod
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def execStatement(self, comp, conn, statement):
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""" add-on-method to execute the statement
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this method should only called by the class itself """
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raise Exception("method is not implemented")
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