sqlite

Download sqlite database from Heroku

由 ◇◆丶佛笑我妖孽 提交于 2021-01-28 23:36:47
问题 I have a worker running python script every 2 hour on Heroku. The problem is each time I 'pull' the changes from git. There is no changes at all for the sqlite3 database. But I am sure the program is running and the database has changed by looking at the log file. heroku log How to retrieve the .db file then ? 回答1: It sounds like you have a little misconception. Heroku's git support is effectively one-way; you can use it to push new code to be run on the server, but you can't use it to copy

SQLite WHERE-Clause for every column?

由 不打扰是莪最后的温柔 提交于 2021-01-28 22:21:21
问题 Does SQLite offer a way to search every column of a table for a searchkey? SELECT * FROM table WHERE id LIKE ... Selects all rows where ... was found in the column id . But instead to only search in the column id , I want to search in every column if the searchstring was found. I believe this does not work: SELECT * FROM table WHERE * LIKE ... Is that possible? Or what would be the next easy way? I use Python 3 to query the SQLite database. Should I go the route to search through the

The model has two many-to-many relations through the intermediate model

由 生来就可爱ヽ(ⅴ＜●) 提交于 2021-01-28 21:55:20
问题 I have a model that has 2 separate ManyToManyField relations back to itself class Company(models.Model): parent = models.ManyToManyField("self", through='CompanyParent', through_fields=('company_child', 'company_parent'), related_name='+') child = models.ManyToManyField("self", through='CompanyParent', through_fields=('company_parent', 'company_child'), related_name='+') The above works fine on my localhost Django v3.0.2/ SQLite 3.8.7.2 To actually publish it, I have had to use Django v2.1.15

The model has two many-to-many relations through the intermediate model

由 泄露秘密 提交于 2021-01-28 21:43:17
问题 I have a model that has 2 separate ManyToManyField relations back to itself class Company(models.Model): parent = models.ManyToManyField("self", through='CompanyParent', through_fields=('company_child', 'company_parent'), related_name='+') child = models.ManyToManyField("self", through='CompanyParent', through_fields=('company_parent', 'company_child'), related_name='+') The above works fine on my localhost Django v3.0.2/ SQLite 3.8.7.2 To actually publish it, I have had to use Django v2.1.15

Trigger Django module on Database update

由 有些话、适合烂在心里 提交于 2021-01-28 18:12:07
问题 I want to develop an application that monitors the database for new records and allows me to execute a method in the context of my Django application when a new record is inserted. I am planning to use an approach where a Celery task checks the database for changes since the last check and triggers the above method. Is there a better way to achieve this? I'm using SQLite as the backend and tried apsw's setupdatehook API, but it doesn't seem to run my module in Django context. NOTE: The

python Datetime and SQLite

由 早过忘川 提交于 2021-01-28 18:02:41
问题 I'd like to enter the current time into my sql table using sqlite3 and python. This code results in an error. cur.execute(''' CREATE TABLE IF NOT EXISTS Finance (date DATE, time TEXT, cost FLOAT, item TEXT, cat TEXT)''') time = datetime.datetime.now().time() cur.execute('''INSERT INTO Finance (date, time, cost, item, cat) VALUES ( ?, ?, ?, ?, ? )''', ( date, time, cost, item, cat ) ) This is the error: ur.execute('''INSERT INTO Finance (date, time, cost, item, cat) VALUES ( ?, ?, ?, ?, ? )'''

Trigger Django module on Database update

由 二次信任 提交于 2021-01-28 18:02:38
问题 I want to develop an application that monitors the database for new records and allows me to execute a method in the context of my Django application when a new record is inserted. I am planning to use an approach where a Celery task checks the database for changes since the last check and triggers the above method. Is there a better way to achieve this? I'm using SQLite as the backend and tried apsw's setupdatehook API, but it doesn't seem to run my module in Django context. NOTE: The

fastmybatis编写分表插件

由 那年仲夏 提交于 2021-01-28 17:49:31
fastmybatis 支持原生的插件，将写好的插件配置到mybatis配置文件中即可 <?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE configuration PUBLIC "-//mybatis.org//DTD Config 3.0//EN" "http://mybatis.org/dtd/mybatis-3-config.dtd"> <configuration> <plugins> <plugin interceptor="xxxxx.MyInterceptor" /> </plugins> </configuration> 这里演示编写一个分表插件 假设有4张分表，user_log0~3，记录用户的日志情况 user_log0 user_log1 user_log2 user_log3 现在需要动态查询指定到某一张表 首先生成对应的实体类，指定一张表生成，不用全部生成 /** * 表名：user_logX * %index% 占位符 */ @Table(name = "user_log%index%") public class UserLog { ... } 注意 %index% 占位符 Mapper不变 public interface UserLogMapper extends CrudMapper

How to reference SQLite database that already exists in Xamarin.Android?

由 纵饮孤独 提交于 2021-01-28 16:49:14
问题 I have created SQLite database and have copied it in the root of the project like that: The database is called MobileSell.db It appears in Visual Studio like that: My question is how can I reference it so afterwards I can say connection.InsertIntoTableArticles(value)(this is pseudo code) 回答1: You can refer to this. There only three steps to achieve it: 1) Create Assets folder which is parallel with Resources folder in your project, put your .db file into it. 2) Copy the .db file to SDCard

How to reference SQLite database that already exists in Xamarin.Android?

由 喜你入骨 提交于 2021-01-28 16:45:58
问题 I have created SQLite database and have copied it in the root of the project like that: The database is called MobileSell.db It appears in Visual Studio like that: My question is how can I reference it so afterwards I can say connection.InsertIntoTableArticles(value)(this is pseudo code) 回答1: You can refer to this. There only three steps to achieve it: 1) Create Assets folder which is parallel with Resources folder in your project, put your .db file into it. 2) Copy the .db file to SDCard
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