Craft\NeoService::saveBlockType PHP Method

    public function saveBlockType(Neo_BlockTypeModel $blockType, $validate = true)
    {
        if (!$validate || $this->validateBlockType($blockType)) {
            // Save this for use by plugins (eg. Reasons)
            $this->currentSavingBlockType = $blockType;
            $transaction = $this->beginTransaction();
            try {
                // Get the block type record
                $blockTypeRecord = $this->_getBlockTypeRecord($blockType);
                $isNewBlockType = $blockType->isNew();
                $oldBlockType = $isNewBlockType ? null : Neo_BlockTypeModel::populateModel($blockTypeRecord);
                // Is there a new field layout?
                $fieldLayout = $blockType->getFieldLayout();
                if (!$fieldLayout->id) {
                    // Delete the old one
                    if (!$isNewBlockType && $oldBlockType->fieldLayoutId) {
                        craft()->fields->deleteLayoutById($oldBlockType->fieldLayoutId);
                    }
                    // Save the new one
                    craft()->fields->saveLayout($fieldLayout);
                    // Update the entry type record/model with the new layout ID
                    $blockType->fieldLayoutId = $fieldLayout->id;
                    $blockTypeRecord->fieldLayoutId = $fieldLayout->id;
                }
                // Set the basic info on the new block type record
                $blockTypeRecord->fieldId = $blockType->fieldId;
                $blockTypeRecord->name = $blockType->name;
                $blockTypeRecord->handle = $blockType->handle;
                $blockTypeRecord->sortOrder = $blockType->sortOrder;
                $blockTypeRecord->maxBlocks = $blockType->maxBlocks;
                $blockTypeRecord->childBlocks = $blockType->childBlocks;
                $blockTypeRecord->topLevel = $blockType->topLevel;
                // Save it, minus the field layout for now
                $blockTypeRecord->save(false);
                if ($isNewBlockType) {
                    // Set the new ID on the model
                    $blockType->id = $blockTypeRecord->id;
                }
                // Update the block type with the field layout ID
                $blockTypeRecord->save(false);
                $this->commitTransaction($transaction);
            } catch (\Exception $e) {
                $this->rollbackTransaction($transaction);
                throw $e;
            }
            // Dereference the block type just for good measure
            $this->currentSavingBlockType = null;
            return true;
        }
        return false;
    }