diff SMART/Java/Python/mySql/MySqlQuery.py @ 6:769e306b7933

Change the repository level.
author yufei-luo
date Fri, 18 Jan 2013 04:54:14 -0500
parents
children 94ab73e8a190
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/SMART/Java/Python/mySql/MySqlQuery.py	Fri Jan 18 04:54:14 2013 -0500
@@ -0,0 +1,94 @@
+#
+# Copyright INRA-URGI 2009-2010
+# 
+# This software is governed by the CeCILL license under French law and
+# abiding by the rules of distribution of free software. You can use,
+# modify and/ or redistribute the software under the terms of the CeCILL
+# license as circulated by CEA, CNRS and INRIA at the following URL
+# "http://www.cecill.info".
+# 
+# As a counterpart to the access to the source code and rights to copy,
+# modify and redistribute granted by the license, users are provided only
+# with a limited warranty and the software's author, the holder of the
+# economic rights, and the successive licensors have only limited
+# liability.
+# 
+# In this respect, the user's attention is drawn to the risks associated
+# with loading, using, modifying and/or developing or reproducing the
+# software by the user in light of its specific status of free software,
+# that may mean that it is complicated to manipulate, and that also
+# therefore means that it is reserved for developers and experienced
+# professionals having in-depth computer knowledge. Users are therefore
+# encouraged to load and test the software's suitability as regards their
+# requirements in conditions enabling the security of their systems and/or
+# data to be ensured and, more generally, to use and operate it in the
+# same conditions as regards security.
+# 
+# The fact that you are presently reading this means that you have had
+# knowledge of the CeCILL license and that you accept its terms.
+#
+
+class MySqlQuery(object):
+    """Query to a database"""
+
+    def __init__(self, cursor, verbosity = 0):
+        self.verbosity = verbosity
+        self.cursor = cursor
+        self.insertedId = None
+
+
+    def __del__(self):
+        self.cursor.close()
+        
+        
+    def execute(self, query, insertion = False):
+        if self.verbosity > 99:
+            print "Querying %s" % (query)
+        try:
+            results = self.cursor.execute(query)
+        except Exception:
+            raise Exception("Error! Command \"%s\" failed!" % (query))
+        if insertion:
+            return self.cursor.lastrowid
+        return results
+
+
+    def executeFormat(self, query, parameters):
+        if self.verbosity > 99:
+            print "Querying %s |" % (query),
+            for parameter in parameters:
+                print parameter,
+            print
+        results = self.cursor.execute(query, parameters)
+        return results
+
+
+    def getLine(self):
+        return self.cursor.fetchone()
+
+
+    def getLines(self, lines = None):
+        if lines == None:
+            return self.cursor.fetchall()
+        return self.cursor.fetchmany(lines)
+
+
+    def isEmpty(self):
+        self.getLines()
+        return self.cursor.rowcount == None or self.cursor.rowcount == 0
+    
+
+    def getInsertedId(self):
+        return self.insertedId
+
+
+    def getIterator(self):
+        line = self.getLine()
+        while line != None:
+            yield line
+            line = self.getLine()
+         
+
+    def show(self):
+        for line in self.getIterator():
+            print line