https://github.com/kaaass/sqlite_queue_python

A simple sqlite queue with a SQL statement encapsulation.
https://github.com/kaaass/sqlite_queue_python

python-library sqlite

Last synced: 5 days ago
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A simple sqlite queue with a SQL statement encapsulation.

• Host: GitHub
• URL: https://github.com/kaaass/sqlite_queue_python
• Owner: kaaass
• License: gpl-2.0
• Created: 2017-10-15T02:06:12.000Z (about 7 years ago)
• Default Branch: master
• Last Pushed: 2017-10-15T03:51:44.000Z (about 7 years ago)
• Last Synced: 2023-03-02T22:41:43.759Z (over 1 year ago)
• Topics: python-library, sqlite
• Language: Python
• Homepage:
• Size: 21.5 KB
• Stars: 6
• Watchers: 2
• Forks: 1
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# sqlite_queue_python

[Origin repo](https://gitee.com/kaaass/sqlite_queue_python)

A simple sqlite queue with a SQL statement encapsulation. A convenient solution of sqlite concurrency.

SqliteQueue maintains a queue of sqlite query. Support peewee request. SqlQuery contains a simple SQL statement encapsulation.

## Example

A simple queue could be created in just 2 lines.

```python

import sqlite_queue

queue = sqlite_queue.SqliteQueue('test.db')

queue.start()

```

Here is a complete example.

```python

import sqlite_queue

queue = sqlite_queue.SqliteQueue('test.db')

queue.setDaemon(False)  # Default a daemon thread

queue.start()

# INSERT statement

for i in range(12,15):

    queue.register_execute("INSERT INTO stocks VALUES ('2017-02-04','BUY','RHAT',?,35.14)", (i,)

		, callback=lambda lst_row, data: print(lst_row))

# SELECT statement

queue.register_execute("SELECT * FROM stocks", callback=lambda lst_row, data: print(data))

# Encapsulation of SELECT statement. 

queue.select('stocks').where('price', '>=', 30) \

                        .order('price').page(1, 5)\

                        .register(callback=lambda lst_row, data: print(data))

```

## Installation

For python3, just run:

```

pip3 install sqlite_queue

```

for other condition:

```

pip install sqlite_queue

```

or you could use setup.py.

```

python setup.py install

```

## TODO List

- 完成：_实现简单的SQL语句拼接_

- 完成：_实现WHERE语句拼接_

- 完成：_实现对回调函数参数的自动识别、匹配_