python - flask-sqlalchemy How to set is_delete to achieve false deletion

How to set is_delete in flask-sqlalchemy to achieve false deletion

过去多啦不再A梦 2017-05-19 10:07:07 0  1  879

How to get multiple data with the same user ID from a table in Nest.js? Assuming I have a users table, how do I get the data that matches the user ID?

How to get multiple data with same user id from table in Nestjs? Let's say I have a users table. How to get data matching user ID? import{Injectable}from'@nestjs/common';import{InjectRepository}from'@nestjs/typeorm';import{Repository}from'typeorm';import{usertbl}from'./usertbl.e

P粉116654495 2023-11-16 20:41:42 0  2  754

How to handle potentially "false" inputs in JSON? Discussion of alternatives

Let's say, I'm not sure if the selected authorities exist (but if they exist, I want them to be selected). If there are no selected authorities, I want jQuery to select the authorities regardless of whether they are selected (actually, this means retrieving the value of the hidden input). My idea of...

P粉161939752 2023-09-10 09:35:21 0  2  539

Why is the result of & operation false?

$x = true;$y=2;if($x & $y++) is false if($x & 3) is true

凉伴伴 2019-05-24 15:04:32 0  1  1103

I can't figure out why the result is false 4.

<?php$x = false;$y = 3;if($x & $y++){ echo 'true';}else{ echo 'false';}//Look at the result echo $y;?

小周 2018-07-27 15:59:17 1  1  1202

node - mongodb database design mongoose schema

Order table design in a trading scenario: Suppose there are four products. The order data of each product must have the same parts, such as: order number, order owner, order type, order status, order tracking timeline, and different products at the same time. Orders also have their own special data....

扔个三星炸死你 2017-06-16 09:19:06 0  3  1036

mysql - table design with multiple roles having different fields

I design a system with multiple roles and they have different fields. Should I design different role tables, or extract a basic information table? Suppose I extract a basic information table, and I want to design permissions, so I make a role table and use the user role table to associate it. Then t...

滿天的星座 2017-05-19 10:07:01 0  2  750

Mysql database design - chat record table design

I would like to ask all the experts, how do you design the chat database? Those who have experience can talk about their experience, and those who have no experience can discuss it together. The problems encountered so far: Assume that there are 1,000 people in the group chat, and user a sends a mes...

M࿆r.࿆z࿆h࿆a࿆n࿆g࿆ 2020-04-21 12:12:14 0  2  1646

How to set the attributes of multiple subitems of v-treeview

Suppose I have variable items with the following structure: [{id:1,name:'value1',item_nested:[{id:2,name:'value2',},{id:3,name:'value3',nested_item: [{id:4,name:'value4'}]}]}] In v-treeview we have a props called item-children which accepts a string which allows to set which property will be referen...

P粉852578075 2023-08-28 10:06:59 0  1  548

Server - How to set a directory as a second-level domain name in nginx?

Assume that the domain name is domain.com, how to configure nginx.conf so that when accessing abc.domain.com, it is actually the content of domain.com/abc (the address of the browser is still displayed as abc.domain.com) I searched this online Configuration is useless: {code...}

巴扎黑 2017-05-16 17:15:55 0  3  499

Get records of employees who took 11 consecutive days off

I have an attendance record with fields for employee number, status and attendance date. I want to use SQL query to get those records of employees who have taken leave for 11 consecutive days. The condition is that if the employee's attendance status is leave, absence or unmarked attendance (a date ...

P粉014218124 2023-08-16 20:44:15 0  1  472

Python speeds up program running problems

Assumption: {code...} Thanks

PHPz 2017-05-18 10:45:07 0  3  665

semicolon

For example: $a= false; //$a is set to false $b=NULL: //$b is set to null$c=NULL; //$

爪X8 2019-06-01 14:00:24 0  1  1320

WebStorm: Import Vue 3 script settings component

Is there a way to automate imports and code completion in WebStorm so that using it with Vue3 components works correctly? Because I'm having some trouble: Let's say I have a component called FooBar.vue: <scriptsetuplang="ts">import{ref}from'vue'constcounter=ref(0)</script> Now ...

P粉321584263 2024-01-01 08:54:19 0  1  415

Database - How should a limited-time history table be designed?

The database is MongoDB. Suppose there is a data table (data collection-collection) --- Users. Every time a user updates his or her data, a copy of the historical data needs to be retained, but not too much. For example, only the latest 5 copies should be saved at most. If a table is specifically de...

ringa_lee 2017-05-31 10:36:04 0  2  1040

The rewritten title is: Use buttons outside the <form> tag to submit the form

Translation: &lt;p&gt;Suppose I have the following:

P粉141911244 2023-08-21 16:26:37 0  2  389