Module rewrite that enables same increment prefix for each Magento store under a website.

config.xml

<!-- app/code/local/Namespace/Modulename/etc/config.xml -->
<config>
    ...
    <global>
        ...
        <models>
            <eav>
                <rewrite>
                    <entity_increment_numeric>Namespace_Modulename_Eav_Model_Entity_Increment_Numeric</entity_increment_numeric>
                </rewrite>
            </eav>
        </models>
        ...
    </global>
    ...
</config>

Numeric.php

<?php
// app/code/local/Namespace/Modulename/Eav/Model/Entity/Increment/Numeric.php

/**
 * Changes the next id behaviour so that all stores share the same increment
 * for orders, invoces, creditmemos and shipments if they share the same
 * increment prefix.
 *
 * 1. In eav_entity_type leave increment_model to be the default eav/entity_increment_numeric
 *
 * 2. Ensure that increment_per_store is 1 (default)
 *
 * 3. Ensure that when creating a new store you set increment_prefix to whatever it
 * is for the website group in eav_entity_store. Note: First time a new index
 * generated an entry for each store of website will be created. You only have
 * to create them manually if stores needs to have separate prefixes.
 *
 * @see Mage_Eav_Model_Entity_Increment_Numeric
 */
class Namespace_Modulename_Eav_Model_Entity_Increment_Numeric extends Mage_Eav_Model_Entity_Increment_Numeric
{
    public function getNextId()
    {
        $next = parent::getNextId();

        // 5 order 6 invoice 7 creditmemo 8 shipment
        if ($this->getEntityTypeId() < 5 || $this->getEntityTypeId() > 8) return $next;

        // Store same increment id for all stores of same website
        $storeIds = Mage::getModel('core/store')
            ->load($this->getStoreId())
            ->getWebsite()
            ->getStoreIds()
            ;

        // Get prefix for store IDs used in case a config a store does not
        // exists this prefix will be used.
        $incrementPrefix = $this->findFirstPrefix($this->getEntityTypeId(), $storeIds);

        // Set last id for configs that has a matching prefix (new configs will
        // always match).
        foreach ($storeIds as $storeId) {
            $entityStoreConfig = $this->findOrCreate($this->getEntityTypeId(), $storeId, $incrementPrefix);
            if ($this->getPrefix() == $entityStoreConfig->getIncrementPrefix()) {
                $entityStoreConfig->setIncrementLastId($next);
                $entityStoreConfig->save();
            }
        }

        return $next;
    }

    /**
     * Finds first entity store prefix with in collection of store ids.
     *
     * @param mixed $entityTypeId
     * @param array $storeIds
     * @param string $incrementDefault
     */
    protected function findFirstPrefix(int $entityTypeId, array $storeIds, $incrementDefault = '1') : string
    {
        $incrementPrefix = $incrementDefault;
        foreach ($storeIds as $storeId) {
            $entityStoreConfig = Mage::getModel('eav/entity_store')
                ->loadByEntityStore($getEntityTypeId, $storeId)
                ;
            if ($entityStoreConfig->getId()) {
                $incrementPrefix = $entityStoreConfig->getIncrementPrefix();
                break;
            }
        }
        return $incrementPrefix;
    }

    /**
     * Find or create (if missing) entity store for store with id.
     *
     * @param int $entityTypeId
     * @param int $storeId
     * @param string $incrementPrefix
     */
    protected function findOrCreate(int $entityTypeId, int $storeId, string $incrementPrefix) : Mage_Eav_Model_Entity_Store
    {
        $entityStoreConfig = Mage::getModel('eav/entity_store')
            ->loadByEntityStore($this->getEntityTypeId(), $storeId)
            ;

        if (!$entityStoreConfig->getId()) {
            $entityStoreConfig
                ->setEntityTypeId($this->getEntityTypeId())
                ->setStoreId($storeId)
                ->setIncrementPrefix($incrementPrefix)
                ->save();
        }
        return $entityStoreConfig;
    }
}

Hejsa mblarsen .. kan ikke rigtigt få det til at virke (ændret namespace og modulename og lagt i de respektive steder ..men nada) :)

I'm getting this error, Parse error: syntax error, unexpected ':', expecting ';' or '{' in /var/www/organzaold/app/code/local/EW/Numeric/Eav/Model/Entity/Increment/Numeric.php on line 53