Memory Model C++11 – C++23About Me: alex.dathskovsky@speedata.io www.linkedin.com/in/alexdathskovsky https://www.cppnext.comAlex Dathskovsky | alex.dathskovsky@speedata.io | www.linkedin.com/in/a

md5 = think.md5('think_' + data.pwd); //���������������������� let result = await this.model('user').where({name: data.name, pwd: md5}).find(); //���������������������� if(think.isEmpty(result)){ js | | `-- index.js | |-- logic | | `-- doc.js | `-- model |-- view | `-- zh-CN | |-- common | | |-- error_400.html | //auto render template file index_index.html return this.display(); } } JavaScript src/home/model view www www/development.js ����������� ������ Windows �� Mac OSX �������������� Linux ����

Contents: Installing and Testing Installing with git Running tests Optional dependencies Quickstart Model Definition Storing data Retrieving Data Working with existing databases What next? Example app Running Generating skeleton code Adding a new Database Driver Models and Fields Fields Creating model tables Model options and table metadata Indexes and Constraints Non-integer Primary Keys, Composite Keys Integration Fields Generic foreign keys Hybrid Attributes Key/Value Store Shortcuts Signal support pwiz, a model generator Schema Migrations Reflection Database URL CSV Utils Connection pool Read Slaves Test Utils

document presents a brief, high-level overview of Peewee’s primary features. This guide will cover: • Model Definition 4 Chapter 1. Contents: peewee Documentation, Release 2.10.2 • Storing data • Retrieving 1.2.1 Model Definition Model classes, fields and model instances all map to database concepts: Thing Corresponds to. . . Model class Database table Field instance Column on a table Model instance typically best to begin with your data model, by defining one or more Model classes: from peewee import * db = SqliteDatabase('people.db') class Person(Model): name = CharField() birthday = DateField()

//take username and encrypted password to match data in database let result = await this.model('user').where({name: data.name, pwd: md5}).find(); //if no result found, it means username or js | | `-- index.js | |-- logic | | `-- doc.js | `-- model |-- view | `-- zh-cn | |-- common | | |-- error_400.html | //auto render template file index_index.html return this.display(); } } JavaScript src/home/model view www www/index.js var thinkjs = require('thinkjs'); var path = require('path'); var rootPath

//take username and encrypted password to match data in database let result = await this.model('user').where({name: data.name, pwd: md5}).find(); //if no result found, it means username or js | | `-- index.js | |-- logic | | `-- doc.js | `-- model |-- view | `-- zh-CN | |-- common | | |-- error_400.html | //auto render template file index_index.html return this.display(); } } JavaScript src/home/model view www www/index.js var thinkjs = require('thinkjs'); var path = require('path'); var rootPath

//take username and encrypted password to match data in database let result = await this.model('user').where({name: data.name, pwd: md5}).find(); //if no result found, it means username or js | | `-- index.js | |-- logic | | `-- doc.js | `-- model |-- view | `-- zh-cn | |-- common | | |-- error_400.html | env: 'development' }); instance.run(); Holding the static files. src/home/controller src/home/model view www www/index.js www/static JavaScript JavaScript JavaScript Generally, ThinkJS projects

Installing with git Running tests Optional dependencies Skip Compilation of SQLite Extensions Quickstart Model Definition Storing data Retrieving Data Closing the database Working with existing databases What Database Errors Logging queries Adding a new Database Driver Models and Fields Fields Creating model tables Model options and table metadata Indexes and Constraints Non-integer Primary Keys, Composite Keys Helper Security and SQL Injection API Documentation Database Query-builder Fields Schema Manager Model Query-builder Internals Constants and Helpers SQLite Extensions Getting started APIs Additional

Installing with git Running tests Optional dependencies Skip Compilation of SQLite Extensions Quickstart Model Definition Storing data Retrieving Data Closing the database Working with existing databases What example Diving into the code More examples Contributing Patches Bugs Questions Query Examples Model Definitions Schema Creation Basic Exercises Joins and Subqueries Modifying Data Aggregation Recursion queries Adding a new Database Driver Models and Fields Fields Field-naming conflicts Creating model tables Model options and table metadata Indexes and Constraints Non-integer Primary Keys, Composite Keys