Plugin Development with OPM Packages

In this section, you will learn how to create, install, and distribute your own plugins as OPM packages for OTOBO.

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1. Structure of a .sopm file

The SOPM file (*.sopm) contains all the metadata for your package:

<?xml version="1.0" encoding="utf-8"?>
<otobo_package version="1.0">
  <Name>MyExtension</Name>
  <Version>1.0.0</Version>
  <Framework>10.0.x</Framework>   <!-- Minimum OTOBO version -->
  <Vendor>YourName Inc.</Vendor>
  <URL>https://github.com/your-user/otobo-mypackage</URL>
  <License>GPL-3.0</License>
  <Description Lang="en">Extension for special features</Description>
  <ChangeLog Version="1.0.0" Date="13.06.2025 12:00:00">Initial release</ChangeLog>
  <Filelist>
    <File Location="Kernel/Config/Files/XML/MyExtension.xml" Permission="644"></File>
    <File Location="Kernel/System/MyExtension.pm"            Permission="644"></File>
    <File Location="Kernel/Modules/AgentMyPage.pm"           Permission="644"></File>
    <File Location="Kernel/Output/HTML/Standard/AgentMyPage.tt" Permission="644"></File>
    <File Location="Kernel/Language/en_MyExtension.pm"       Permission="644"></File>
  </Filelist>
</otobo_package>

• Name/Version/Framework: Unique package identifier and compatible OTOBO version.
• Filelist: All files that will be copied during installation.

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2. Files & Directory Structure

Create your package in its own directory, e.g., MyExtension/:

MyExtension/
├─ MyExtension.sopm
├─ Kernel/
│  ├─ Config/Files/XML/MyExtension.xml
│  ├─ System/MyExtension.pm
│  ├─ Modules/AgentMyPage.pm
│  ├─ Output/HTML/Standard/AgentMyPage.tt
│  └─ Language/en_MyExtension.pm
└─ sql/
   └─ create_tables.sql      # optional, for DB migrations

• Kernel/Config/Files/XML/: Registers modules, menus, or Dynamic Fields.
• Kernel/System/: Business logic class.
• Kernel/Modules/: Frontend controller.
• Templates & Language: TT files + translation .pm files.

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3. Building & Installing the Package

3.1 Creating the OPM

Use the CLI tool to build an OPM from your SOPM:

cd /path/to/MyExtension
bin/otobo.Console.pl Dev::Package::Build \
  --sopm-file MyExtension.sopm \
  --output /tmp/MyExtension.opm

3.2 Installation

Admin UI: Upload the package under Admin → Settings → Package Management. Console:

bin/otobo.Console.pl Admin::Package::Install /tmp/MyExtension.opm

To uninstall or upgrade:

bin/otobo.Console.pl Admin::Package::Uninstall /tmp/MyExtension.opm
bin/otobo.Console.pl Admin::Package::Upgrade   /tmp/MyExtension.opm

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4. Extension Points

4.1 Dynamic Fields

In Kernel/Config/Files/XML/MyExtension.xml, you register a new Dynamic Field driver:

<Setting Name="DynamicFields::Driver###MyCustomField" Required="0" Valid="1">
  <Navigation>DynamicFields::Driver</Navigation>
  <Value>
    <Array>
      <Item><Hash>
        <Item Key="DriverName">MyCustomField</Item>
        <Item Key="Module">Kernel::System::DynamicField::Driver::MyCustomField</Item>
      </Hash></Item>
    </Array>
  </Value>
</Setting>

Implement the driver in Kernel/System/DynamicField/Driver/MyCustomField.pm.

4.2 Event Handlers

Register your event handler:

<Setting Name="Event::EventHandler###MyHandler" Required="0" Valid="1">
  <Navigation>Event::EventHandler</Navigation>
  <Value>
    <Array>
      <Item><Hash>
        <Item Key="Module">Kernel::System::Event::Handler::MyHandler</Item>
      </Hash></Item>
    </Array>
  </Value>
</Setting>

Implement the handler in Kernel/System/Event/Handler/MyHandler.pm (the Run() method).

4.3 Output Filters

<Setting Name="Output::Filter###MyFilter" Required="0" Valid="1">
  <Navigation>Output::Filter</Navigation>
  <Value>
    <Array>
      <Item><Hash>
        <Item Key="Module">Kernel::System::Output::Filter::MyFilter</Item>
      </Hash></Item>
    </Array>
  </Value>
</Setting>

Filter in Kernel/System/Output/Filter/MyFilter.pm.

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5. Deployment & OTOpar

• Repository Index: Create Packages.xml for your own repository:

  bin/otobo.Console.pl Dev::Package::RepositoryIndex \
    --directory /var/www/otobo-packages

• Add your repository URL under SysConfig in Package::RepositoryList.

• OTOpar: Upload your OPM to https://otopar.perl-services.de so that others can install it directly.

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6. Example: MyCalendar Package

1. Create the SOPM with the name MyCalendar.
2. DB script sql/create_calendar.sql for the calendar_events table.
3. Config XML defines a new ticket field "Appointment".
4. Core module Kernel/System/CalendarEvent.pm with CRUD methods.
5. Frontend modules Kernel/Modules/AgentCalendar.pm, template AgentCalendar.tt.
6. Build the package and upload it to OTOpar.

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7. Tips & Best Practices

• Adjust the version number in the sopm (SemVer).
• DB migrations in sql/ should be cleanly versioned.
• Create unit tests for system and module classes.
• Documentation in the README plus POD in Perl modules.
• Translations in Language/de_*.pm and en_*.pm.

With this, you have a solid foundation to develop, distribute, and maintainably use your own OTOBO plugins in client projects. Have fun