Sequelize node js（开发人员如何使用）

npm install sequelize 
npm install sqlite3 
npm install sequelize-cli

'INSTANT VB TODO TASK: The following line uses invalid syntax:
'npm install sequelize npm install sqlite3 npm install sequelize-cli

npx sequelize-cli init

'INSTANT VB TODO TASK: The following line uses invalid syntax:
'npx sequelize-cli init

{
  "development": {
    "dialect": "sqlite",
    "storage": "./database/development.sqlite"
  },
  "test": {
    "dialect": "sqlite",
    "storage": ":memory:"
  },
  "production": {
    "dialect": "sqlite",
    "storage": "./database/production.sqlite"
  }
}

"development":
  If True Then
	"dialect": "sqlite", "storage": "./database/development.sqlite"
  End If
'INSTANT VB TODO TASK: Local functions are not converted by Instant VB:
' , "test":
'  {
'	"dialect": "sqlite", "storage": ":memory:"
'  }
'INSTANT VB TODO TASK: Local functions are not converted by Instant VB:
' , "production":
'  {
'	"dialect": "sqlite", "storage": "./database/production.sqlite"
'  }

npx sequelize-cli model:generate --name User --attributes firstName:string,lastName:string,email:string

'INSTANT VB TODO TASK: The following line uses invalid syntax:
'npx sequelize-cli model:generate --name User --attributes firstName:string,lastName:string,email:string

npx sequelize-cli db:migrate

'INSTANT VB TODO TASK: The following line uses invalid syntax:
'npx sequelize-cli db:migrate

// Import Sequelize and model definitions
const { Sequelize, DataTypes } = require('sequelize');
const UserModel = require('./models/user');
// Create Sequelize instance
const sequelize = new Sequelize({
  dialect: 'sqlite',
  storage: './database/development.sqlite', // Path to SQLite database file
});
// Define models
const User = UserModel(sequelize, DataTypes);
// Synchronize models with the database
sequelize.sync({ force: true }) // Set force to true to drop existing tables
  .then(() => {
    console.log('Database synchronized');
  })
  .catch((error) => {
    console.error('Error synchronizing database:', error);
  });
// Example usage
(async () => {
  try {
    // Create a new user
    const user = await User.create({
      firstName: 'John',
      lastName: 'Doe',
      email: 'john@example.com',
    });
    console.log('User created:', user.toJSON());
    // Retrieve all users
    const users = await User.findAll();
    console.log('All users:', users.map((user) => user.toJSON()));
  } catch (error) {
    console.error('Error:', error);
  }
})();

' Import Sequelize and model definitions
'INSTANT VB TODO TASK: The following line could not be converted:
const
	Private Sequelize, DataTypes } = require( 'sequelize');
Private const UserModel = require( './models/user');
' Create Sequelize instance
Private const sequelize = New Sequelize({ dialect: 'sqlite', storage: './database/development.sqlite'});
' Define models
Private const User = UserModel(sequelize, DataTypes)
' Synchronize models with the database
'INSTANT VB WARNING: The following constructor is declared outside of its associated class:
'ORIGINAL LINE: sequelize.sync({ force: true }).then(() =>
sequelize.s Sub New()
	console.log( 'Database synchronized');
End Sub
Private ).catch(([error]) =>
	console.error( '@Error synchronizing database:', @error);
)
' Example usage
'INSTANT VB TODO TASK: Lambda expressions and anonymous methods are not converted by Instant VB if local variables of the outer method are referenced within the anonymous method:
(async () =>
If True Then
	Try
		const user = Await User.create({ firstName: 'John', lastName: 'Doe', email: 'john@example.com'});
		console.log( 'User created:', user.toJSON());
		const users = Await User.findAll()
		console.log( 'All users:', users.map((user) => user.toJSON()));
	Catch e1 As [error]
		console.error( '@Error:', @error);
	End Try
End If
)()

npm install @ironsoftware/ironpdf

'INSTANT VB TODO TASK: The following line uses invalid syntax:
'npm install @ironsoftware/ironpdf

const { Sequelize, DataTypes } = require('sequelize');
const IronPdf = require("@ironsoftware/ironpdf");
const document=IronPdf.PdfDocument;
var config=IronPdf.IronPdfGlobalConfig
// 1. Initialize Sequelize
const sequelize = new Sequelize({
  dialect: 'sqlite',
  storage: './database/data.sqlite', // Path to SQLite database file
});
// 2. Define Model
const User = sequelize.define('User', {
  firstName: {
    type: DataTypes.STRING,
    allowNull: false,
  },
  lastName: {
    type: DataTypes.STRING,
    allowNull: false,
  },
  email: {
    type: DataTypes.STRING,
    allowNull: false,
    unique: true,
    validate: {
      isEmail: true,
    },
  },
});
// 3. Synchronize Model with Database
sequelize.sync({ force: true }) // Set force to true to drop existing tables
  .then(() => {
    console.log('Database synchronized');
    // 4. Seed Database (optional)
    return User.bulkCreate([
      { firstName: 'John', lastName: 'Doe', email: 'john@example.com' },
      { firstName: 'Jane', lastName: 'Smith', email: 'jane@example.com' },
    ]);
  })
  .then(() => {
    // 5. Query Database and Generate PDF
    return User.findAll();
  })
  .then((users) => {
    // Create HTML content for PDF
    const htmlContent = `
      <html>
        <head>
          <title>User List</title>
        </head>
        <body>
          <h1>User List</h1>
          <ul>
            ${users.map((user) => `<li>${user.firstName} ${user.lastName} - ${user.email}</li>`).join('')}
          </ul>
        </body>
      </html>
    `;
    // Create PDF
    document.fromHtml(htmlContent).then((pdf) => {
      // Save PDF to file
      pdf.saveAs('user-list.pdf');
      console.log('PDF generated successfully');
    }).catch((error) => {
      console.error('Error generating PDF:', error);
    });
  })
  .catch((error) => {
    console.error('Error:', error);
  });

'INSTANT VB TODO TASK: The following line could not be converted:
const
If True Then
	Sequelize, DataTypes } = require( 'sequelize');
const IronPdf = require("@ironsoftware/ironpdf")
const document=IronPdf.PdfDocument
'INSTANT VB WARNING: An assignment within expression was extracted from the following statement:
'ORIGINAL LINE: var config=IronPdf.IronPdfGlobalConfig const sequelize = new Sequelize({ dialect:
IronPdf.IronPdfGlobalConfig Const sequelize = New Sequelize({ dialect: 'sqlite', storage: './database/data.sqlite'});
Dim config As Dim=IronPdf.IronPdfGlobalConfig Const sequelize
' 2. Define Model
const User = sequelize.define( 'User', { firstName: { type: DataTypes.@STRING, allowNull: False}, lastName: { type: DataTypes.@STRING, allowNull: False}, email: { type: DataTypes.@STRING, allowNull: False, unique: True, validate: { isEmail: True}}});
' 3. Synchronize Model with Database
'INSTANT VB TODO TASK: Local functions are not converted by Instant VB:
'sequelize.sync({ force: True }).@then(() =>
'{
'	console.log('Database synchronized');
'	Return User.bulkCreate([{ firstName: 'John', lastName: 'Doe', email: 'john@example.com' }, { firstName: 'Jane', lastName: 'Smith', email: 'jane@example.com' },]);
'}
'INSTANT VB TODO TASK: Lambda expressions and anonymous methods are not converted by Instant VB if local variables of the outer method are referenced within the anonymous method:
).then(() =>
'INSTANT VB TODO TASK: Local functions are not converted by Instant VB:
'	document.fromHtml(htmlContent).@then((pdf) =>
'	{
'		pdf.saveAs('user-list.pdf');
'		console.log('PDF generated successfully');
'	}
'INSTANT VB TODO TASK: Lambda expressions and anonymous methods are not converted by Instant VB if local variables of the outer method are referenced within the anonymous method:
	).catch(([error]) =>