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# Copyright 2017 Starbot Discord Project |
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# |
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# Licensed under the Apache License, Version 2.0 (the "License"); |
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# you may not use this file except in compliance with the License. |
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# You may obtain a copy of the License at |
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# |
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# http://www.apache.org/licenses/LICENSE-2.0 |
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# |
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# Unless required by applicable law or agreed to in writing, software |
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# distributed under the License is distributed on an "AS IS" BASIS, |
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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# See the License for the specific language governing permissions and |
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# limitations under the License. |
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"""SQLite Abstraction layer for Starbot's database API.""" |
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import sqlite3 |
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from api.database.entry import Entry |
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def db_open(db_in): |
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"""Open the Database.""" |
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db_in.type = "SQLite" |
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db_in.connection = sqlite3.connect("bot.db3") |
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def db_close(db_in): |
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"""Close the Database.""" |
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# Close the database. |
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db_in.connection.close() |
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def db_create_table(db_in, tablename): |
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"""Create a new table in the database unless it already exists.""" |
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connection = db_in.connection.cursor() |
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connection.execute('CREATE TABLE IF NOT EXISTS %s(id INTEGER PRIMARY KEY);' % tablename) |
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def db_insert(db_in, table, dict_in): |
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"""Insert new entry in database.""" |
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connection = db_in.connection.cursor() |
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keys = [] |
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values = [] |
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for key, value in dict_in.items(): |
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keys.append(key) |
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# Escape quotes |
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if isinstance(value, str): |
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values.append("'" + value.replace("'", "''") + "'") |
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else: |
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values.append("'" + str(value) + "'") |
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# Update entries for each key and value. |
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for key in keys: |
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# Attempt to add column, fail silently if it exists. |
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try: |
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connection.execute('ALTER TABLE %s ADD COLUMN %s' % (table.name, key)) |
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except sqlite3.OperationalError: |
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pass |
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connection.execute('INSERT INTO %s(%s) VALUES (%s);' % (table.name, ",".join(keys), ",".join(values))) |
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return_entry = Entry(connection.lastrowid, db_in, table, dict_in) |
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db_in.connection.commit() |
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return return_entry |
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def db_entry_edit(db_in, table, entry_id, dict_in): |
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"""Edit existing database entry.""" |
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connection = db_in.connection.cursor() |
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# Update entries for each key and value. |
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for key, value in dict_in.items(): |
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# Attempt to add column, fail silently if it exists. |
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try: |
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connection.execute('ALTER TABLE %s ADD COLUMN %s' % (table.name, key.replace("'", "''"))) |
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except sqlite3.OperationalError: |
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pass |
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# Update the entry in the database. |
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connection.execute("UPDATE '%s' SET %s='%s' WHERE id=%s;" % (table.name, key, value, str(entry_id))) |
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db_in.connection.commit() |
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def db_entry_delete(db_in, table, entry_id): |
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"""Delete database entry.""" |
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connection = db_in.connection.cursor() |
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connection.execute('DELETE FROM %s WHERE id=%s' % (table.name, str(entry_id))) |
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def db_search(db_in, table, search_key, search_query): |
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"""Select first entry that matches and return type entry.""" |
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connection = db_in.connection.cursor() |
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search_query = search_query.replace("'", "''") # Escape quotes |
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cursor = connection.execute("SELECT * FROM %s WHERE %s='%s';" % |
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(table.name, search_key, search_query)) |
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for row in cursor: |
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return Entry(row[0], db_in, table, row) |
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def db_get_contents_of_table(db_in, table, rows): |
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connection = db_in.connection.cursor() |
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cursor = connection.execute("SELECT %s FROM %s" % (", ".join(rows), table.name)) |
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results = [] |
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for row in cursor: |
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results.append(row) |
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return results |
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def db_get_latest_id(db_in, table): |
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connection = db_in.connection.cursor() |
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cursor = connection.execute("SELECT * FROM \"%s\" ORDER BY id DESC LIMIT 1" % (table.name)) |
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for row in cursor: |
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return row[0] |
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StarbotDiscord /
Starbot
