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Training Doctrine ORM - Optimizing Symfony Persistence

Ref: JFG513
10 people max.
From $3,675 HT / per person
On-site on request · +$540 with certification exam
3 days
Remote

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Microsoft
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Ubisoft
Microsoft
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Learning objectives

  • Master Doctrine entity mappings for professional Symfony applications
  • Develop complex relationships and associations in enterprise settings
  • Implement performant DQL and QueryBuilder queries
  • Configure migrations and certified database seeding
  • Optimize Doctrine performance with caching and proxies
  • Integrate Doctrine ORM into real Symfony projects
  • Acquire certified skills to boost your career
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Our social commitment

A school kit donated to a child for every training

To fight inequalities in access to education, Learni donates a complete school kit to a child in need for every training booked. You build your skills, a child heads back to school.

  • Backpack, notebooks and essential supplies
  • Distributed through our partner charities
  • Included, at no extra cost to you

The Learni story

Founded by engineers and learning experts, Learni's mission is to make high-impact tech training accessible to teams everywhere. We work remotely with organizations across the US and Canada, in your time zone, to help teams upskill fast.

Don't let this gap widen

Why this program matters

  • Without mastering Doctrine ORM, PHP teams waste 50% of their time on inefficient manual SQL queries, generating N+1 queries that slow apps by 300% under load.

  • Mapping errors cause 25% of production incidents, costing 10k€/mois in downtime for an SME.

  • In 2024, 68% of Symfony job postings require Doctrine expertise, sidelining untrained juniors.

  • Every project without an optimized ORM widens the competitive gap, multiplying DB bugs by 4 and stalling business growth.

  • Act before your competitors ship more scalable solutions.

Imed BEN AMOR
Imed BEN AMOR

Learni trainer · Development expert

73%productivity gap
×3cost of inaction

Program

Module 1Doctrine ORM Fundamentals: Advanced Entity Mappings (annotations, YAML, XML, validation)

Dive into configuring Doctrine ORM entities via annotations and YAML, create complex mappings with inheritance and custom types, implement Symfony validation integrated with Doctrine for reliable production data, perform practical exercises on a red thread e-commerce project, test persistence and custom repositories, produce an optimized database schema ready for enterprise use, with code review by the expert trainer.

Module 2Doctrine ORM Relationships: Associations and DQL/QueryBuilder Queries (joins, advanced filters)

Explore unidirectional, bidirectional, and many-to-many relationships in Doctrine ORM, configure cascades and ownership for robust Symfony models, master DQL for native queries and QueryBuilder for dynamic constructions with joins and aggregates, apply pagination and partial hydration on concrete enterprise cases like a CRM, develop reusable repositories, generate complex reports, optimize to avoid N+1 queries from the first practical tests.

Module 3Advanced Doctrine ORM: Migrations, Caching, Performance (CLI tools, Redis, lazy loading)

Manage Doctrine migrations with Make:migration and fixtures for automated seeding in Symfony CI/CD, integrate second-level cache via Redis or Memcached to boost performance, configure lazy/eager loading and proxies for ultra-fast queries, analyze bottlenecks with Blackfire and Doctrine Profiler, apply best practices on the red thread project with Docker deployment, produce a customized Doctrine bundle, measure real-time gains up to 70% faster, prepare for certified production.

Evaluation method

  • Technical MCQ on Doctrine mappings and queries at the end of the session
  • Evaluation through practical exercises and ORM code debugging
  • Presentation of the red thread project with performance optimization

Learning method

  • Live sessions by active Symfony expert trainer
  • Hands-on exercises on authentic enterprise cases
  • Evolving red thread project over 3 days with feedback
  • PDF/video course materials and Doctrine cheatsheets provided

Methods, materials and delivery

The Training Doctrine ORM - Optimizing Symfony Persistence program is delivered onsite or remote (blended-learning, virtual classroom, remote presence). At Learni, an industry-certified training organization, every program is built to maximize skills acquisition regardless of the chosen format.

The trainer alternates between demonstrative, interrogative and active methods (through hands-on labs and/or scenarios). This pedagogical approach guarantees concrete learning that's immediately applicable at work.

Equipment required

For the smooth delivery of the Training Doctrine ORM - Optimizing Symfony Persistence program, the following equipment is required:

  • Mac or PC computers, high-speed fiber internet, whiteboard or flipchart, projector or interactive touch screen (for remote sessions)
  • Training environments installed on workstations or accessible online
  • Course materials, hands-on exercises and complementary resources
  • Post-training access to materials and educational resources

For intra-company training on a site outside Learni, the client commits to providing all required teaching materials (computers, internet, etc.) for the smooth delivery of the program in line with the prerequisites in the communicated program.

* contact us for remote delivery feasibility** ratio varies depending on the program

Skills assessment methods

Assessment of skills acquired during the Training Doctrine ORM - Optimizing Symfony Persistence program is performed through:

  • During training: case studies, hands-on labs and professional scenarios
  • End of training: self-assessment questionnaire and skills evaluation by the trainer
  • After training: completion certificate detailing acquired skills

Program accessibility

Learni is committed to making its programs accessible. All our programs are accessible to people with disabilities. Our teams are available to adapt the pedagogical methods to your specific needs. Please contact us for any adjustment request.

Enrollment terms and lead times

Registration is possible up to 48 business hours before the start of training. All our programs are built for corporate L&D budgets and delivered onsite or remotely.

Our method

Training quality, guaranteed at every step

Before, during, after: we frame the brief, introduce the trainer, tailor the content and measure impact. You stay in control from kickoff to wrap-up.

Step 1

Rigorous trainer selection

Each trainer is validated on three criteria: hands-on field expertise, proven pedagogy and alignment with your industry.

  • Triple validation: technical, pedagogical, sectoral.
  • Minimum rating 4.8/5 over the last 12 sessions.
Step 2

You meet the trainer beforehand

30-minute video call between you and the selected trainer to validate the fit, adjust content and clear any final doubts.

  • Live briefing on goals and team context.
  • Veto right — we swap the trainer for free if needed.
Step 3

Content tailored to your context

No recycled slides. The syllabus is reworked from your real cases: tools, constraints, vocabulary, ongoing projects.

  • Hands-on cases drawn from your stack and projects.
  • Program co-written then validated by your team.
Step 4

Continuous quality follow-up

Live evaluations, 30/90/180-day check-ins and a consolidation plan. If the impact misses the mark, we rework it.

  • NPS, knowledge quizzes and skills self-assessment.
  • Satisfaction guarantee: fully satisfied or free rework.

A simple promise: you don't pay to discover the trainer on day one. Everything is validated upfront, by you.

FAQ

Frequently asked questions

How much does the Training Doctrine ORM - Optimizing Symfony Persistence training cost?+
The price is $3,675 (USD) per participant. A detailed quote is sent within one business day.
How long is the Training Doctrine ORM - Optimizing Symfony Persistence training?+
The training lasts 3 journées, available live online (US time zones) or on-site at your offices.
How is this training paid for?+
Most US teams pay directly through their company (L&D or training budget). We invoice in US dollars and accept bank transfer (ACH/wire) or card, with volume pricing for teams. A purchase order is welcome.
Are there any prerequisites?+
Mastery of PHP 8+, Symfony 6+, and advanced SQL queries
Is a certificate delivered at the end?+
Yes. A Learni completion certificate is issued, along with the individual evaluation report.
Does Learni provide the equipment?+
No. A computer and stable internet connection are required for the participant. Learni provides the educational platform, the trainer and all course materials.
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