Refactored code; organized letter and word metrics

src/storage/results/wordFrequencies.py

@@ -0,0 +1,24 @@
+import storage
+
+class WordFrequencyStorage(storage.Storage):
+    __COMMAND_CREATE_WORD_FREQUENCIES = """CREATE TABLE IF NOT EXISTS WordFrequencies (
+        idtext INTEGER,
+        word TEXT,
+        frequency REAL
+        )"""
+
+    def _createDatabase(self):
+        c = self.connect()
+        c.execute(self.__COMMAND_CREATE_WORD_FREQUENCIES)
+        self.commit()
+
+    def _destroyDatabase(self):
+        c = self.connect()
+        c.execute('DROP TABLE IF EXISTS WordFrequencies')
+        self.commit()
+
+    def store(self, idtext, frequencies):
+        c = self.connect()
+        for word, freq in frequencies:
+            c.execute('INSERT INTO WordFrequencies VALUES(?, ?, ?)', (idtext, word, freq))
+        self.commit()