Centos nginx mysql php fpm apc magento jobs

...Features: AI-Powered Code Generation: Integration of OpenAI models (e.g., Codex, GPT) for generating code based on user descriptions. Ability to understand natural language and user preferences. Continuous learning to improve over time. Development Scope: Backend: Development using frameworks like Node.js, PHP (Laravel), or Python (Flask/Django). Frontend: User-friendly interface built with modern technologies like React.js, Vue.js, or similar. Database Management: Support for MySQL, MongoDB, or equivalent solutions. Deployment Automation: Seamless deployment to platforms like Heroku, Vercel, or custom servers using CI/CD pipelines. User Interaction: A clear and intuitive web/mobile interface where users can input tasks. Progress tracking and detailed output logs. Visu...

I have a PHP script that requires fixing. The problem is that the search box isnt performing correctly. Neither is the message the customer sees once succesfully submitted. additionally the form is not being submitted. Going to url: i should not see the bold print above the search box "Start typing title or artist:" nor should i see the faint line below the form. Those are both cosmetic. Functionality wise, when a user starts typing in the box, it should be auto populating the results. The user then selects the result they want then submit, and the screen will show the success message, along with upcoming results that are already in the queue (with their newly submitted one) The purpose of this form is to allow users of the radio station to

I need an experienced professional to install PowerMTA on my CentOS Linux server. You will install it from scratch. You are an expert who has installed the application many times, I do not need configuration, you just have to install it and get the service started on a fresh server.

I have a specific WordPress/PHP theme that needs to be installed and configured on my website. Ideal Skills and Experience: - Extensive experience with WordPress and PHP - Proven track record of installing and configuring WordPress themes - Strong understanding of website scripting - Excellent attention to detail to ensure the theme is set up correctly Please note, the theme is compatible with the latest version of WordPress/PHP.

I am in need of a seasoned PHP and WordPress web developer to manage our cloud systems. This will involve taking ownership of our VPS system health, including: - Monitoring and maintaining system health - Applying security patches - Optimizing performance You will also be responsible for Web App Development and managing Microsoft XML Plugins. Your key duties will include: - Overseeing the VPS system health - Managing and applying necessary security patches - Engaging in web app development The majority of web app development will primarily focus on PHP. Ideal candidates should have: - Extensive experience with PHP and WordPress - Proven track record in managing VPS systems - Strong skills in applying security patches - Proficiency in web app development - Experi...

My WordPress site requires an upgrade to enhance its mobile responsiveness and overall performance. Key Issues: - Mobile Responsiveness: The site content is not displaying correctly on mobile devices, particularly the 'Bunner'. - Performance: The site is slow when accessed on a mobile device. - Upgrade PHP version Ideal Skills: - Proficient in WordPress development and troubleshooting. - Strong understanding of mobile optimization techniques. - Experience in improving site performance and load speed.

The Medical Clinic Management System is an integrated solution designed to streamline administrative operations within a medical clinic. The system includes key components such as the admin, patients, and various staff members, including reception and registration clerks, financial officers, pharmacists, and the essential doctor. The system also manages medications, rooms, and clinic departments. It allows for tracking the patient service process from the reception stage to receiving their medication.

...of a talented PHP and JavaScript software tester, who can write robust unit and integration test for the entire application. Is is possible that bugs may be found within the testing process, documentation of bugs and a failing test to prove it would be an ask here. I would expect an easy to use/triggerable via GH actions testing suite. ie. Merging to main will trigger a new GH action workflow to test the entire app ensuring safe CI/CD. As an extra mile, i would like the developer to offer advice for enhancements and upgrades, as I want to create a relationship with a astute developer who can continue to build projects for me and further enhance this current one. Ideal candidates should: - Be well versed in testing PHP/Javascript apps. - Have a strong background in ...

I'm seeking a seasoned developer to modify a theme for our B2C furniture website and link it with our Netsuite. N...detailed requirements. Key Responsibilities: - Tailoring the theme for various website components including the homepage layout, product pages, checkout process, customer profile, order history, promotions, banners, and image sliders. - Ensuring the theme is user-friendly, easily editable, and integrates flawlessly with Netsuite and Adobe Commerce (Magento). Ideal Candidate: - Has a strong eCommerce background with a deep understanding of Magento (Adobe Commerce) and Netsuite. - Possesses a keen eye for design, able to create an aesthetically pleasing and functional website. - Has experience with customizing themes and integrating eCommerce platforms w...

...analytics services. 5. Security: SSL certificate. Protection against common attacks (CSRF, XSS, SQL Injection). Secure authentication system for the admin panel. --- Proposed Tools and Technologies 1. Frontend: HTML5, CSS3, JavaScript (Framework: React.js or Vue.js). Bootstrap or TailwindCSS for responsive design. 2. Backend: PHP with Laravel (Framework). Integration with WHMCS via its API or direct database access. 3. Database: MySQL (shared with WHMCS for data synchronization). 4. Admin Panel: Custom CMS development based on Laravel Nova or a similar system. 5. Other Integrations: PayPal, Stripe, and other payment methods (managed from WHMCS). CDN support (e.g., Cloudflare) for performance optimization. --- Deliverables 1. Fully fu...

***ONLY GENUINE DEVELOPERS PLEASE CONTACT*** We are seeking a highly experienced and dedicated software developer proficient in ReactJS, NodeJS/NextJS, Django, and MySQL. The candidate will be responsible for developing a comprehensive eCommerce website within one month. Key features required are multiple combo offer pages (Buy1-Get1, Buy2-Get2 & Buy3-Get3), gift card pages, coupon management, OTP verification via DLT API, user profile management copied from another eCommerce portal, and an admin panel for complete site management including inventory, customer communication, picture uploads, category management, reporting, integration with shipping delivery partners for order tracking, payment gateway setup (Pay U or Phone pay), etc.

***ONLY GENUINE DEVELOPERS PLEASE CONTACT*** We are seeking a highly experienced and dedicated software developer proficient in ReactJS, NodeJS/NextJS, Django, and MySQL. The candidate will be responsible for developing a comprehensive eCommerce website within one month. Key features required are multiple combo offer pages (Buy1-Get1, Buy2-Get2 & Buy3-Get3), gift card pages, coupon management, OTP verification via DLT API, user profile management copied from another eCommerce portal, and an admin panel for complete site management including inventory, customer communication, picture uploads, category management, reporting, integration with shipping delivery partners for order tracking, payment gateway setup (Pay U or Phone pay), etc.

***ONLY GENUINE DEVELOPERS PLEASE CONTACT*** We are seeking a highly experienced and dedicated software developer proficient in ReactJS, NodeJS/NextJS, Django, and MySQL. The candidate will be responsible for developing a comprehensive eCommerce website within one month. Key features required are multiple combo offer pages (Buy1-Get1, Buy2-Get2 & Buy3-Get3), gift card pages, coupon management, OTP verification via DLT API, user profile management copied from another eCommerce portal, and an admin panel for complete site management including inventory, customer communication, picture uploads, category management, reporting, integration with shipping delivery partners for order tracking, payment gateway setup (Pay U or Phone pay), etc.

Seeking a highly experienced and dedicated software developer with extensive expertise in ReactJS, NodeJS/ NextJS, Django and MySql. The candidate will be responsible for creating a comprehensive e-commerce website within 40 days. The ideal candidate should have substantial experience in developing multiple combo offer pages like Buy1-Get1,Buy2-Get2 & Buy3-Get3 pages, gift card pages, gift pages, coupon pages, OTP verification, Abandoned cart notification, order notification and payment gateway integration. Key features include Dashboard management for pricing, bulk import/export, category management, enabling/disabling combo pages, creating gift cards with secure login pins similar to Myntra's setup, extensive admin panel capabilities like customer communication management...

...and release updates as needed. Key Features to Develop Property Listings (Buy, Rent, Sell) Vendor Marketplace for residential services Society Chart for direct owner connections Real-time Chat Rooms Payment Gateway Integration Refer-and-Earn Program Required Skills Frontend: Flutter, React Native, or native development (Swift, Kotlin). Backend: Node.js, Django, or Laravel. Database: Firebase, MySQL, or MongoDB. API Integration: RESTful APIs, payment gateways (Razorpay, Stripe, etc.). Testing Tools: Selenium, Postman, Appium. Deliverables Fully functional Nivaas app with all features implemented. Scalable and secure backend system. Comprehensive testing report. Deployment to app stores. Documentation of code and deployment process. Interested freelancers should share: 1. Portf...

I'm looking for an experienced programmer who can integrate APIs into a Telegram bot using PHP. The specific integration is with the SMS Active system to update prices in real-time. Key Requirements: - Expert in PHP programming language - Proven experience in developing and integrating APIs into Telegram bots - Familiarity with the SMS Active system - Ability to implement real-time price updates within the app Please note, the primary purpose of the bot is to update in-app prices based on real-time changes. Your bid will be considered if you can demonstrate relevant experience and skills.

PHP Regular work

I'm seeking an experienced PHP and JavaScript programmer to tailor a Codecanyon script to my needs. The modifications will focus primarily on the backend and involve incorporating a third-party payment gateway. Key Requirements: - Altering backend functionality to improve script performance - Integrating a third-party payment gateway seamlessly into the script - Prior experience with Codecanyon scripts is a plus The ideal candidate will be proficient in PHP and JavaScript, with a strong understanding of backend script functionality and API integrations. A knack for making user-friendly interface adjustments will also be appreciated. Please note, the primary task will be customizing the script's backend and facilitating payment gateway integration.

I'm seeking a skilled developer to create a PHP POS system for my retail store like mall php

I am looking for someone to help me set up a readymade PHP script. I already have the script and just need help in getting it live and making some minor changes. Skills and Experience: - Proficiency in PHP - Experience in setting up and configuring PHP scripts - Knowledge of web development and deployment processes

I'm looking for a professional who can assist me in importing property data from a public API into a MySQL database. The data encompasses both residential and commercial properties. Ideal skills for this project: - Proficiency in MySQL - Experience with API data import - Understanding of property data Please note, the specific data fields to be imported have not yet been determined. It would be beneficial if you could advise on standard fields to include and why. Thank you.

I'm looking for a skilled Java Developer with strong expertise in Hibernate, Spring, and MySQL for a new application development project. The primary focus will be creating a robust, user-friendly web-based interface. Key Responsibilities: - Design, develop and implement a new web application using Java and associated technologies. - Collaborate with me to enhance the user interface, ensuring it is intuitive and engaging. - Use Hibernate for ORM, Spring for dependency injection and MySQL for database management. Ideal Skills: - Proficient in Java with extensive experience in web application development. - Strong skills in Hibernate, Spring, and MySQL. - Previous experience in UI/UX design for web applications. - Excellent debugging skills, with a keen attention ...

I am experiencing some bugs in my PHP CodeIgniter software that need to be rectified. The issues mainly pertain to the User Interface and some Functional errors. - UI Issues: These are primarily related to the software's interaction with users. - Functional Errors: I'm encountering problems with form submissions and database retrievals. The ideal freelancer for this project should have: - Extensive experience with PHP and CodeIgniter. - A strong background in troubleshooting UI issues and functional errors. - Proven skills in debugging and rectifying software bugs. - Ability to work efficiently and communicate progress regularly. Please reach out if you believe you can assist with these issues.

I'm in need of a skilled PHP developer to create an e-commerce website. The site should include a shopping cart, user accounts, and payment gateway integration. Key Features: - Shopping Cart: The site should have a reliable and user-friendly shopping cart. - User Accounts: The site needs to allow users to create personal accounts for a tailored shopping experience. - Payment Gateway Integration: The developer will need to integrate secure and efficient payment gateways. Ideal Skills: - Proficiency in PHP and e-commerce website development - Experience with integrating shopping carts and user accounts - Skilled in secure payment gateway integration Please note: Specific payment gateways have not been decided yet, but experience with PayPal, Stripe, and would be bene...

My WordPress website is currently non-functional and I need an experienced WordPress professional to diagnose and resolve the issue. The specific problem is not clear to me as it occurred suddenly without any noticeable changes or specific error messages. Ideal skills for this job include: - Proficiency in WordPress troubleshooting - Knowledge in PHP and MySQL - Expertise in web hosting and server management - Experience with WordPress security and malware removal - Ability to work under pressure and meet tight deadlines I am looking for a freelancer who can provide a thorough assessment of my website and implement necessary fixes promptly.

I'm looking for a professional web developer to build a classic and professional PHP website for my travel agency. The site should include a comprehensive package booking system and an admin panel. Key Requirements: - Real-time availability checking: The booking system should be able to show real-time availability of travel packages. - Package customization options: Users should be able to customize their travel packages. The site should have a classic and professional user interface. It needs to be user-friendly and easy to navigate. Please note, I do not require any payment methods to be integrated at this time. Instead, I need an enquiry and booking form. Ideal Skills: - Strong proficiency in PHP and web development. - Experience in creating travel agency websites ...

I'm looking to implement Apache Superset to enhance my business intelligence capabilities. The primary purpose is to leverage its powerful data visualization and reporting features to gain...enhance my business intelligence capabilities. The primary purpose is to leverage its powerful data visualization and reporting features to gain deeper insights and make informed decisions. Key Requirements: - Proven Expertise in Apache Superset is must - Connect Apache Superset to my SQL databases, specifically MySQL. - Implement and configure the software for optimal performance. - Provide training and support on how to use the platform effectively. Ideal Skills: - Proficient with MySQL - Strong background in business intelligence and data visualization - Excellent training and...

I'm seeking a skilled PHP developer with experience in working with MySQL and Cassandra. The task involves creating a succinct PHP script that can: - Continuously read user data from MySQL and write it into Cassandra. - Read user data from Cassandra and write it back into MySQL. The environment for testing is already set up locally, and the task is expected to be completed within 2 hours. The data transfer process does not require any transformations; the user data will be directly transferred without adjustments. Given the short time frame and nature of the task, I appreciate freelancers who have prior working experience with this kind of project. Your understanding of both databases and PHP is key to the success of this project. Looking ...

I am looking for an expert who can install the PMTA application on my CentOS server. The primary use of this application will be for email marketing. Key Requirements: - Installation of PMTA on CentOS Access: - You will be provided with root access to the server. Ideal Skills: - Extensive experience with PMTA - Proficient in CentOS

...through a server located in a specific geographic area while maintaining operational efficiency and compliance with geolocation requirements. Responsibilities: 1. Server Setup and Configuration: - Install and configure an Ubuntu Server (22.04) or Debian-based operating system. - Set up VPN services (e.g., WireGuard or OpenVPN) with Maryland-based IPs. - Configure load balancing using NGINX or HAProxy. - Implement monitoring tools (Prometheus, Grafana) and logging tools (Fail2Ban, UFW). 2. Networking and Security: - Set up a secure local network with a router supporting VPN functionality. - Configure a 24-port Gigabit switch for device connectivity. - Develop firewall rules and security protocols to prevent unauthorized access. 3. Laptop Configuration: ...

Hi I need a working example in PHP using the libraries Slim and Stripe for pre-authorizing cards and then charge charge them. Max 50 euros.

I need a skilled PHP/SQL programmer to help me troubleshoot and fix issues in my existing code. I'm currently facing a couple of challenges that need immediate attention. 1) PDF Files Preview Issue: I have PDF files that are not previewing properly on three different pages and a 'save to PDF' page. Some PDFs are displaying while others aren't. All these files are stored in a database table. 2) Setting Up New Database Fields: I need assistance in creating three new fields in my database. This will involve integrating these fields in the front-end and back-end of my existing system. Ideally, I would like to complete these tasks within three hours, though I anticipate we could finish sooner. If you're available now and ready to work with me, please respond w...

I need assistance with configuring an advanced NGINX RTMP setup. Below are the specific requirements I need implemented: 1. Origin Server Authentication System: The origin server should only accept RTMP streams from users who provide a valid token. The stream URL format should be: rtmp:// The token must be generated based on the channel name and a secure hash algorithm to ensure protection. The system should validate whether the provided token matches the expected token for that specific channel. This validation must be logic-based and should not rely on a database. The token should not expire, but it must be unique and tied to the specific channel to prevent unauthorized access. The platform should accept streams from various encoders

I'm seeking a skilled PHP Laravel developer with experience in Backpack for Laravel. Most of the work is complete; however, there are approximately 50 outstanding defects primarily related to: - Website (User Panel) - API integrations The immediate priority is fixing these defects to ensure the site and its associated APIs are functioning correctly to support a mobile application. There is potential for long-term work following this project, as I will require support and maintenance. Ideal candidates would also have: - Proficient experience with PHP and Laravel - Previous work with Backpack for Laravel - Not mandatory but Good to have if your team has React Native for mobile development - Payment gateway integration

==If you bid and have no magento experience, I will report you to freelancer support. == BID ONLY IF YOU HAVE MAGENTO 2 EXPERIENCE!!! IF YOU BID ONE FEE, THEN INCREASE IT AFTER WE CHAT, I WILL SAY GOODBYE TO YOU!!! So READ each word of the project details and REVIEW each jpg before you state a fee. +++ BUDGET $100 +++ NO AUTO BIDS I'm looking for a skilled Magento 2.4.7 p3 developer with a strong background in CSS to implement several modifications on my Magento store. Using Magento 2.4.7 p3 on a Dedicated Ubuntu 22.04 Server. 1. Install forum software. Not sure which to use. mybb v. phpbb I like these themes: a. Install mybb forum software and selected theme.

I'm looking for a skilled DevOps professional to help me automate application deployments from a GUI application on a Linux VPS server. The setup should mimic a user-friendly interface like DigitalOcean, where users can select a server type ...(for now just Linux), choose an application to deploy (such as NodeJs, Angular, or WordPress), and select a database. Key Requirements: - Implementing automation using Jenkins, Puppet, and Terraform - Supporting deployments for NodeJs, Angular, and WordPress - Offering MySQL, PostgreSQL, and MongoDB as database options Skills & Experience: - Proficiency in automation tools (Jenkins, Puppet, Terraform) - Familiarity with Linux VPS servers - Experience in deploying NodeJs, Angular, and WordPress applications - Knowledge of MySQL...

I'm looking to create a modern, sleek business website in PHP. The website should encompass essential pages including Home, About Us, and Contact Us. Ideal skills for the job: - Extensive knowledge of PHP - Web design experience with a modern aesthetic - Ability to create user-friendly, responsive layouts Please include samples of your previous work that demonstrate your ability to deliver a website of this caliber. Your understanding of modern web design principles and PHP will be key in successfully executing this project.

Need minor edits to my POS system. Tasks include: - Logo update - Modifying the Scripture - Changing a description to 'Warranty' I have the new warranty information ready to go. Ideal skills and experience: - Proficient in PHP - Familiar with point-of-sale systems - Able to make quick, precise changes - Good understanding of UI/UX for POS systems

I'm looking for an experienced developer who can help me convert my existing PHP project to CodeIgniter. Key requirements: - Expertise in PHP and CodeIgniter. - Ability to understand and work with existing PHP code. - Experience in converting PHP projects to CodeIgniter. - Strong problem-solving skills to handle any issues that may arise during the conversion process. Please note: - The main purpose of the project has not been specified. - The version of CodeIgniter to be used is also undecided. - No additional features or improvements are required during the conversion.

... suspend, or block accounts. Ride management: Oversee rides, monitor disputes. Payment management: Process transactions and driver payouts. Analytics: Insights into revenue, user behaviour, and app performance. 2. Technology Stack Frontend: React Native, Flutter, or Swift/Java/Kotlin for mobile apps. Backend: Node.js, Python (Django/Flask), or Ruby on Rails. Database: MySQL, PostgreSQL, or MongoDB. Cloud services: AWS, Google Cloud, or Azure for hosting and scaling. APIs: Google Maps API (or similar for geolocation), Twilio for messaging, Stripe/PayPal for payments. 3. Legal and Compliance Licensing and permits: Follow local transport regulations. Driver background checks: Ensure safety and compliance. Data protection: Adhere to GDP...

I'm experiencing an issue with certbot on my Nginx server. The error states "Failed to renew certificate" and the type is "unauthorized". I have access to the server's terminal and I'm using a VPS. Key Requirements: - Expertise in troubleshooting and fixing certbot issues - Proficiency in Nginx server management - Experience with VPS hosting Please bid only if you can resolve this issue promptly. Thank you.

...Skills To build a platform of this scale and complexity, a team of developers with expertise in the following areas is required: Frontend Development Proficiency in HTML, CSS, and JavaScript. Frameworks like React.js, Vue.js, or Angular for building a dynamic and responsive user interface. Backend Development Expertise in Node.js, Python (Django/Flask), PHP (Laravel), or Ruby on Rails. Experience with database management using MongoDB, MySQL, or PostgreSQL. Integration & APIs Strong knowledge of Steam API for user authentication and inventory integration. Expertise in working with cryptocurrency payment APIs (e.g., Litecoin wallets or exchanges). Experience with real-time item trade systems for CS2 skins integration. Game Development & RNG Understanding of game lo...

I'm seeking a skilled developer to help build a dashboard that updates every few seconds, using WebSocket to fetch real-time system metrics from a MySQL database. Key Requirements: - Proficient in WebSocket and MySQL - Experience in developing real-time dashboards - Ability to visualise system metrics effectively Please include examples of relevant past work in your proposal.

I'm looking for a skilled PHP Laravel developer who can create a robust vehicle tracking system. The system should be capable of tracking vehicles' locations in real-time. Key Features: - The system should track vehicles, focusing primarily on their location - Real-time updates: The tracking information should be updated in real-time Ideal Skills: - Proficient in PHP 8 and Laravel - Extensive experience in developing GPS tracking systems - Knowledge of TCP server implementation in PHP - No JavaScript skills required for this project Please note that the project should not involve any JavaScript. Your proposal should clearly demonstrate your relevant experience and how you plan to deliver this project.

I'm looking for a sleek, modern website with a bespoke admin panel supporting three tiers of...generating passwords directly from the site. - Admin panel functionalities: Posting announcements about in-game events and tracking event details, allowing other admins to log their participation. - Simple authentication system: Using usernames and passwords. - Database Connection: Website linked to a MySQL database for effective data management. The ideal freelancer for this project should have extensive experience in web development, particularly in creating custom admin panels and working with MySQL databases. A keen understanding of user authentication systems and experience with event tracking features would be highly beneficial. A portfolio showcasing modern, sleek web d...

...secure web platform. A responsive user interface for the dashboard and service navigation. Complete integration with a defined set of third-party services (exact list to be discussed). Detailed documentation for the platform's functionality, deployment, and maintenance. Technologies to Be Used: Frontend: Angular Backend: Java (Spring Boot or similar framework) Database: MySQL or PostgreSQL for storing user data and encrypted credentials Hosting: AWS, Google Cloud, or another cloud service (optional, based on discussion) What I Expect from the Freelancer: Proven experience with Java and Angular development. Knowledge of secure credential management and encryption. Ability to integrate third-party APIs and handle browser automation i...

...passwords directly from the site. Key Features: - MySQL Database Connection: The website should be linked to a MySQL database where all necessary data is stored and can be managed. - Announcement Posting: The admin panel should have an option for posting announcements about in-game events, such as "King of the Hill". - Event Tracking: There should be a section where admin 1 and 2 can check boxes to mark that they attended an event, with details about what event it was, when it occurred, and who won. - User Authentication: The admin panel should use a simple username and password system for user authentication. Ideal Skills and Experience: - Proficient in web development with a strong portfolio of modern, sleek designs. - Extensive experience with MySQL d...

...and guaranteed Ideal Skills: - Web development - Experience with building educational platforms - Knowledge of creating interactive features on websites Skills Needed: Technical Skills: Web Development: Design skills: Proficiency in HTML, CSS, JavaScript, and frameworks like React or Angular for front-end development. Backend development using languages like PHP, Python (Django/Flask), or Node.js. Database management using MySQL, PostgreSQL, or MongoDB. LMS Integration: Experience with LMS platforms like Moodle, LearnDash, or custom LMS development. Knowledge of SCORM or xAPI for content interoperability. UI/UX Design: Strong understanding of responsive and user-friendly design principles. Experience with design tools like Figma, Adobe XD, or Sketch. SEO Optimization...

I'm in need of an experienced Linux Administrator who can assist in setting up my Linux server. The primary tasks include: - Configuring the server for web hosting using Apache or Nginx - Setting up the firewall for enhanced security - Installing SSL certificates for secure connections Ideal candidates should have extensive experience with Linux server configuration, web server setup and security measures. Please include your relevant experience in your proposal.

I need a skilled MySQL developer to create three triggers for me. Details: - The triggers should respond to all types of events: INSERT, UPDATE, and DELETE. I have table where each product has unique product_id. Some products are grupped together under a parent product, these products have the identifier of parent stored in the parent_product_id column. If the product is not part of a group then the parent_product_id is 0. The parents product are stored in the same product table. The id stored in the the child’s parent_product_id colum is the uniue product_id of the parent. I also have the price and currency code stored in the same table in columns price_1 and currency_code. What i need: When the price_1 is updated for a child then the tigger needs to check each child of ...