ruby on rails with flutter [Arabic]

Switch to the PostgreSQL user account by running the following command:

sudo -u postgres psql

Once you are in the PostgreSQL command-line interface, create a new user by executing the following command:

CREATE USER your_username WITH PASSWORD 'your_password';

Replace your_username with the desired username and your_password with the desired password for the user. Be sure to keep these credentials secure.

Next, create a new database by running the following command:

CREATE DATABASE your_database;

Replace your_database with the name you want to give to your database.

Grant all privileges on the database to the user by executing the following command:

GRANT ALL PRIVILEGES ON DATABASE your_database TO your_username;

Replace your_database with the name of your database, and your_username with the username you created earlier.

To exit the PostgreSQL command-line interface, type:

\q

CREATE TABLE user1 (

user_id serial PRIMARY KEY,

username VARCHAR ( 50 ) UNIQUE NOT NULL,

);

la class circle animation :

*****************************************************************************************************

import 'package:flutter/material.dart';

class CircleAnimation extends StatefulWidget {

  final Widget child;

  const CircleAnimation({

    Key? key,

    required this.child,

  }) : super(key: key);

  @override

  _CircleAnimationState createState() => _CircleAnimationState();

}

class _CircleAnimationState extends State<CircleAnimation>

    with SingleTickerProviderStateMixin {

  late AnimationController controller;

  @override

  void initState() {

    super.initState();

    controller = AnimationController(

      vsync: this,

      duration: const Duration(milliseconds: 5000),

    );

    controller.addStatusListener((status) {

      if (status == AnimationStatus.completed) {

        controller.reverse();

      } else if (status == AnimationStatus.dismissed) {

        controller.forward();

      }

    });

    controller.forward();

  }

  @override

  void dispose() {

    controller.dispose();

    super.dispose();

  }

  @override

  Widget build(BuildContext context) {

    return AnimatedBuilder(

      animation: controller,

      builder: (context, child) {

        // Rotation animation

        final rotationAnimation = Tween<double>(begin: 0.0, end: 1.0)

            .animate(CurvedAnimation(parent: controller, curve: Curves.linear));

        // Fading animation

        final fadeAnimation = Tween<double>(begin: 0.3, end: 1.0).animate(

          CurvedAnimation(

            parent: controller,

            curve: Interval(0.0, 0.5, curve: Curves.easeInOut),

          ),

        );

        return Transform.rotate(

          angle: rotationAnimation.value * 2.0 * 3.141592653589793,

          child: Opacity(

            opacity: fadeAnimation.value,

            child: widget.child,

          ),

        );

      },

    );

  }

}

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build stream function :

buildMusicAlbum(String profilePhoto) {

    return SizedBox(

      width: 60,

      height: 60,

      child: Column(

        children: [

          Container(

              padding: EdgeInsets.all(11),

              height: 50,

              width: 50,

              decoration: BoxDecoration(

                  gradient: const LinearGradient(

                    colors: [

                      Colors.grey,

                      Colors.white,

                    ],

                  ),

                  borderRadius: BorderRadius.circular(25)),

              child: ClipRRect(

                borderRadius: BorderRadius.circular(25),

                child: Image(

                  image: NetworkImage(profilePhoto),

                  fit: BoxFit.cover,

                ),

              ))

        ],

      ),

    );

  }