From c152e255cddc0e10a254d40bacdac734c83e33d2 Mon Sep 17 00:00:00 2001
From: jonasled <jonas@jonasled.de>
Date: Sun, 6 Oct 2019 21:49:01 +0200
Subject: [PATCH] add coments on export
---
export.py | 9 ++++++---
1 file changed, 6 insertions(+), 3 deletions(-)
diff --git a/export.py b/export.py
index 40cd498..45e7569 100644
--- a/export.py
+++ b/export.py
@@ -1,3 +1,6 @@
+# to run this script and export the database from an docker container run docker -it <container_name> python3 export.py > database.csv
+#The output will be in excel-style CSV (";" instead of "," as column seperator.)
+
import sqlite3
create_table = """
@@ -8,7 +11,7 @@ create_table = """
"""
with sqlite3.connect('db/urls.db') as conn:
cursor = conn.cursor()
- try: #Try making the database structure, if fails Database was already created.
+ try: #Try making the database structure, if succeeded, exit, because there can't be any data.
cursor.execute(create_table)
print("No data Found, exiting")
exit()
@@ -17,6 +20,6 @@ with sqlite3.connect('db/urls.db') as conn:
conn = sqlite3.connect('db/urls.db')
cursor = conn.cursor()
-res = cursor.execute('SELECT LONG_URL, SHORT_URL FROM WEB_URL WHERE 1')
+res = cursor.execute('SELECT LONG_URL, SHORT_URL FROM WEB_URL WHERE 1') #read all data from database
for entries in res.fetchall():
- print(str(entries[1]) + ";" + str(entries[0]))
\ No newline at end of file
+ print(str(entries[1]) + ";" + str(entries[0])) #format the data and print it to console.
\ No newline at end of file
--
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