[wip] add different steps to handle request

Controller/ExportController.php

@@ -25,6 +25,11 @@ namespace Chill\MainBundle\Controller;
 use Symfony\Bundle\FrameworkBundle\Controller\Controller;
 use Symfony\Component\HttpFoundation\Request;
 use Chill\MainBundle\Form\Type\Export\ExportType;
+use Chill\MainBundle\Form\Type\Export\PickFormatterType;
+use Chill\MainBundle\Form\Type\Export\FormatterType;
+use Symfony\Component\Form\Extension\Core\Type\FormType;
+use Symfony\Component\Form\FormBuilderInterface;
+use Symfony\Component\Form\Extension\Core\Type\HiddenType;
 
 
 /**
@@ -44,20 +49,53 @@ class ExportController extends Controller
         ));
     }
     
-    public function newAction($alias)
+    /**
+     * Render the form required to generate data for the export.
+     * 
+     * This action has two steps :
+     * 
+     * - 'export', for the export form
+     * - 'formatter', for the formatter form
+     * 
+     * @param string $alias
+     * @param Request $request
+     * @return \Symfony\Component\HttpFoundation\Response
+     */
+    public function newAction(Request $request, $alias)
+    {
+        $step = $request->query->getAlpha('step', 'export');
+        
+        switch ($step) {
+            case 'export':
+                return $this->renderExportForm($alias);
+                break;
+            case 'formatter':
+                return $this->renderFormatterStep($request, $alias);
+                break;
+            default:
+                throw $this->createNotFoundException("The given step '$step' is invalid");
+        }
+    }
+    
+    /**
+     * Render the export form
+     * 
+     * @param string $alias
+     * @return \Symfony\Component\HttpFoundation\Response
+     */
+    protected function renderExportForm($alias)
     {
         $exportManager = $this->get('chill.main.export_manager');
         
         $export = $exportManager->getExport($alias);
-        
-        $form = $this->createCreateForm($alias);
+                
+        $form = $this->createCreateFormExport($alias);
         
         return $this->render('ChillMainBundle:Export:new.html.twig', array(
             'form' => $form->createView(),
             'export_alias' => $alias,
             'export' => $export
         ));
-        
     }
     
     /**
@@ -65,30 +103,150 @@ class ExportController extends Controller
      * @param string $alias
      * @return \Symfony\Component\Form\Form
      */
-    protected function createCreateForm($alias)
+    protected function createCreateFormExport($alias)
     {
-        $form = $this->createForm(ExportType::class, array(), array(
+        $builder = $this->get('form.factory')
+              ->createNamedBuilder(null, FormType::class, array(), array(
+                    'method' => 'GET',
+                    'csrf_protection' => false,
+                    'action' => $this->generateUrl('chill_main_export_new', array(
+                        'alias' => $alias
+                    ))               
+              ));
+        
+        $builder->add('export', ExportType::class, array(
             'export_alias' => $alias,
-            'method' => 'GET',
-            'action' => $this->generateUrl('chill_main_export_generate', array(
-                'alias' => $alias
-            ))
+
         ));
         
-        $form->add('submit', 'submit', array(
+        $builder->add('submit', 'submit', array(
+            'label' => 'Generate'
+        ));
+        $builder->add('step', 'hidden', array(
+            'data' => 'formatter'
+        ));
+        
+        return $builder->getForm();
+    }
+    
+    protected function renderFormatterStep(Request $request, $alias)
+    {
+        $export = $this->get('chill.main.export_manager')->getExport($alias);
+        
+        $exportForm = $this->createCreateFormExport($alias);
+        $exportForm->handleRequest($request);
+        $data = $exportForm->getData();
+        
+        $form = $this->createCreateFormFormatter($request, 
+                 $alias, array(), $data['export']['formatter']['alias']);
+        
+        return $this->render('ChillMainBundle:Export:new_formatter_step.html.twig',
+                array(
+                    'form' => $form->createView(),
+                    'export' => $export
+                ));
+    }
+    
+    /**
+     * 
+     * @param Request $request
+     * @param type $formatterAlias
+     * @return \Symfony\Component\Form\Form
+     */
+    protected function createCreateFormFormatter(Request $request, 
+            $exportAlias, $aggregatorAliases, $formatterAlias = null)
+    {
+        var_dump($request->query->all());
+        $builder = $this->get('form.factory')
+                ->createNamedBuilder(null, FormType::class, array(), array(
+                    'method' => 'GET',
+                    'csrf_protection' => false,
+                    'action' => $this->generateUrl('chill_main_export_generate', array(
+                        'alias' => $exportAlias
+                    ))
+                ));
+        
+        $builder->add('formatter', FormatterType::class, array(
+            'formatter_alias' => $formatterAlias,
+            'export_alias' => $exportAlias,
+            'aggregator_aliases' => $aggregatorAliases
+        ));
+        
+        // re-add the export type under hidden fields
+        $builderExport = $builder->create('export', FormType::class, array());
+        $data = $request->query->all();
+        foreach($data['export'] as $key => $value) {
+            $this->recursiveAddHiddenFieldsToForm($builderExport, $key, $value);
+        }
+        $builder->add($builderExport);
+        
+        //add the formatter alias
+        $builder->add('formatter', HiddenType::class, array(
+            'data' => $formatterAlias
+        ));
+        
+        $builder->add('submit', 'submit', array(
             'label' => 'Generate'
         ));
         
-        return $form;
+        return $builder->getForm();
+        
     }
     
     public function generateAction(Request $request, $alias)
     {
         $exportManager = $this->get('chill.main.export_manager');
         
-        $form = $this->createCreateForm($alias);
+        $form = $this->createCreateFormGenerate($request, $alias);
         $form->handleRequest($request);
+        $data = $form->getData();
         
-        return $exportManager->generate($alias, $form->getData());
+        return $exportManager->generate($alias, $data['export']);
+    }
+    
+    /**
+     * 
+     * @param Request $request
+     * @param string $alias
+     * @return \Symfony\Component\Form\Form
+     */
+    public function createCreateFormGenerate(Request $request, $alias, 
+            $aggregatorAliases, $formatterAlias)
+    {
+        $builder = $this->get('form.factory')
+            ->createNamedBuilder(null, FormType::class, array(), array(
+                'method' => 'GET',
+                'csrf_protection' => false,
+                'action' => $this->generateUrl('chill_main_export_generate', array(
+                    'alias' => $alias
+                ))
+            ));
+        
+        $builder->add('formatter', FormatterType::class, array(
+            'formatter_alias' => $formatterAlias,
+            'export_alias' => $exportAlias,
+            'aggregator_aliases' => $aggregatorAliases
+        ));
+        
+        $builder->add('export', ExportType::class, array(
+            'export_alias' => $alias,
+        ));
+        
+        return $builder->getForm();
+    }
+    
+    protected function recursiveAddHiddenFieldsToForm(FormBuilderInterface $builder, $key, $data)
+    {
+        if (is_array($data)) {
+            foreach($data as $subKey => $value) {
+                $subBuilder = $builder->create($subKey, FormType::class);
+                $this->recursiveAddHiddenFieldsToForm($subBuilder, $subKey, $value);
+                $builder->add($subBuilder);
+            }
+        } else {
+            $builder->add($key, 'hidden', array(
+                'data' => $data
+            ));
+        }
     }
 }

DependencyInjection/CompilerPass/ExportsCompilerPass.php

@@ -52,6 +52,7 @@ class ExportsCompilerPass implements CompilerPassInterface
         $this->compileExports($chillManagerDefinition, $container);
         $this->compileFilters($chillManagerDefinition, $container);
         $this->compileAggregators($chillManagerDefinition, $container);
+        $this->compileFormatters($chillManagerDefinition, $container);
     }
     
     private function compileExports(Definition $chillManagerDefinition, 
@@ -143,5 +144,35 @@ class ExportsCompilerPass implements CompilerPassInterface
             }
         }
     }
+    
+    private function compileFormatters(Definition $chillManagerDefinition,
+            ContainerBuilder $container)
+    {
+        $taggedServices = $container->findTaggedServiceIds(
+            'chill.export_formatter'
+        );
+        
+        $knownAliases = array();
+        
+        foreach ($taggedServices as $id => $tagAttributes) {
+            foreach ($tagAttributes as $attributes) {
+                if (!isset($attributes["alias"])) {
+                    throw new \LogicException("the 'alias' attribute is missing in your ".
+                        "service '$id' definition");
+                }
+                
+                if (array_search($attributes["alias"], $knownAliases)) {
+                    throw new \LogicException("There is already a chill.export_formatter service with alias "
+                        .$attributes["alias"].". Choose another alias.");
+                }
+                $knownAliases[] = $attributes["alias"];
+                
+                $chillManagerDefinition->addMethodCall(
+                    'addFormatter',
+                    array(new Reference($id), $attributes["alias"])
+                );
+            }
+        }
+    }
 
 }

Export/ExportManager.php

@@ -94,9 +94,9 @@ class ExportManager
         $this->exports[$alias] = $export;
     }
     
-    public function addFormatter(FormatterInterface $formatter)
+    public function addFormatter(FormatterInterface $formatter, $alias)
     {
-        array_push($this->formatters, $formatter);
+        $this->formatters[$alias] = $formatter;
     }
     
     /**
@@ -157,6 +157,13 @@ class ExportManager
         return $this->filters[$alias];
     }
     
+    public function getFilters(array $aliases)
+    {
+        foreach($aliases as $alias) {
+            yield $alias => $this->getFilter($alias);
+        }
+    }
+    
     /**
      * 
      * @param string $alias
@@ -172,6 +179,31 @@ class ExportManager
         return $this->aggregators[$alias];
     }
     
+    public function getAggregators(array $aliases)
+    {
+        foreach ($aliases as $alias) {
+            yield $alias => $this->getAggregator($alias);
+        }
+    }
+    
+    public function getFormatter($alias)
+    {
+        if (!array_key_exists($alias, $this->formatters)) {
+            throw new \RuntimeException("The formatter with alias $alias is not known.");
+        }
+        
+        return $this->formatters[$alias];
+    }
+    
+    public function getFormattersByTypes(array $types)
+    {
+        foreach ($this->formatters as $alias => $formatter) {
+            if (in_array($formatter->getType(), $types)) {
+                yield $alias => $formatter;
+            }
+        }
+    }
+    
     
     /**
      * Return a \Generator containing filter which support type
@@ -242,11 +274,18 @@ class ExportManager
             'class' => self::class, 'function' => __FUNCTION__
         ));
         
-        $results = $qb->getQuery()->getResult(\Doctrine\ORM\Query::HYDRATE_SCALAR);
+        $result = $export->getResult($qb, array());
         
-        var_dump($results);
+        /* @var $formatter Formatter\CSVFormatter */
+        $formatter = $this->getFormatter('csv');
+        $filters = array();
+        $aggregators = iterator_to_array($this->retrieveUsedAggregators($data['aggregators']));
+        $aggregatorsData = array_combine(array_keys($data['aggregators']), 
+                array_map(function($data) { return $data['form']; }, $data['aggregators'])
+            );
         
-        return new Response('everything is fine !');
+        return $formatter->getResponse($result, array(), $export, 
+                $filters, $aggregators, array(), $data['filters'], $aggregatorsData);
     }
     
     /**
@@ -257,12 +296,10 @@ class ExportManager
      */
     private function retrieveUsedModifiers($data)
     {
-        $usedTypes = array();
-        
-        // used filters
-        $this->retrieveUsedFilters($data, $usedTypes);
-        // used aggregators
-        $this->retrieveUsedAggregators($data, $usedTypes);
+        $usedTypes = array_merge(
+                $this->retrieveUsedFiltersType($data['filters']),
+                $this->retrieveUsedAggregatorsType($data['aggregators'])
+                );
         
         $this->logger->debug('Required types are '.implode(', ', $usedTypes), 
                 array('class' => self::class, 'function' => __FUNCTION__));
@@ -270,9 +307,10 @@ class ExportManager
         return $usedTypes;
     }
     
-    private function retrieveUsedFilters($data, &$usedTypes)
+    private function retrieveUsedFiltersType($data)
     {
-        foreach($data['filters'] as $alias => $filterData) {
+        $usedTypes = array();
+        foreach($data as $alias => $filterData) {
             if ($filterData['enabled'] == true){
                 $filter = $this->getFilter($alias);
                 if (!in_array($filter->applyOn(), $usedTypes)) {
@@ -280,16 +318,37 @@ class ExportManager
                 }
             }
         }
+        
+        return $usedTypes;
     }
     
-    private function retrieveUsedAggregators($data, &$usedTypes)
+    /**
+     * 
+     * @param mixed $data
+     * @return string[]
+     */
+    private function retrieveUsedAggregatorsType($data)
     {
-        foreach($data['aggregators'] as $alias => $aggregatorData) {
+        $usedTypes = array();
+        foreach($this->retrieveUsedAggregators($data) as $alias => $aggregator) {
+            if (!in_array($aggregator->applyOn(), $usedTypes)) {
+                array_push($usedTypes, $aggregator->applyOn());
+            }
+        }
+        
+        return $usedTypes;
+    }
+    
+    /**
+     * 
+     * @param mixed $data
+     * @return AggregatorInterface[]
+     */
+    private function retrieveUsedAggregators($data)
+    {
+        foreach($data as $alias => $aggregatorData) {
             if ($aggregatorData['order']> 0){
-                $aggregator = $this->getAggregator($alias);
-                if (!in_array($aggregator->applyOn(), $usedTypes)) {
-                    array_push($usedTypes, $aggregator->applyOn());
-                }
+                yield $alias => $this->getAggregator($alias);
             }
         }
     }

Export/Formatter/CSVFormatter.php

@@ -0,0 +1,247 @@
+<?php
+
+/*
+ * Copyright (C) 2016 Champs-Libres <info@champs-libres.coop>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+namespace Chill\MainBundle\Export\Formatter;
+
+use Chill\MainBundle\Export\ExportInterface;
+use Symfony\Component\HttpFoundation\Response;
+use Chill\MainBundle\Export\FormatterInterface;
+use Symfony\Component\Translation\TranslatorInterface;
+use Symfony\Component\Form\FormBuilderInterface;
+
+// command to get the report with curl : curl --user "center a_social:password" "http://localhost:8000/fr/exports/generate/count_person?export[filters][person_gender_filter][enabled]=&export[filters][person_nationality_filter][enabled]=&export[filters][person_nationality_filter][form][nationalities]=&export[aggregators][person_nationality_aggregator][order]=1&export[aggregators][person_nationality_aggregator][form][group_by_level]=country&export[submit]=&export[_token]=RHpjHl389GrK-bd6iY5NsEqrD5UKOTHH40QKE9J1edU" --globoff
+
+/**
+ * 
+ *
+ * @author Julien Fastré <julien.fastre@champs-libres.coop>
+ */
+class CSVFormatter implements FormatterInterface
+{
+    /**
+     *
+     * @var TranslatorInterface
+     */
+    protected $translator;
+    
+    protected $result;
+    
+    protected $formatterData;
+    
+    protected $export;
+    
+    protected $filters;
+    
+    protected $aggregators;
+    
+    protected $exportData;
+    
+    protected $filterData;
+    
+    protected $aggregatorsData;
+    
+    
+    public function __construct(TranslatorInterface $translator)
+    {
+        $this->translator = $translator;
+    }
+    
+    public function getType()
+    {
+        return 'tabular';
+    }
+    
+    public function getName()
+    {
+        return 'CSV';
+    }
+    
+    public function buildForm(FormBuilderInterface $builder, $exportAlias, array $aggregatorAliases)
+    {
+        
+    }
+    
+    /**
+     * 
+     * @param mixed $result
+     * @param mixed $data
+     * @param \Chill\MainBundle\Export\ExportInterface $export
+     * @param \Chill\MainBundle\Export\FilterInterface[] $filters
+     * @param \Chill\MainBundle\Export\AggregatorInterface[] $aggregators
+     */
+    public function getResponse($result, $formatterData, ExportInterface $export, $filters, 
+            $aggregators, $exportData, $filterData, $aggregatorsData)
+    {
+        $this->result = $result;
+        $this->formatterData = $formatterData;
+        $this->export = $export;
+        $this->filters = $filters;
+        $this->aggregators = $aggregators;
+        $this->exportData = $exportData;
+        $this->filterData = $filterData;
+        $this->aggregatorsData = $aggregatorsData;
+        
+        $response = new Response();
+        $response->setStatusCode(200);
+        $response->headers->set('Content-Type', 'text/csv; charset=utf-8');
+        //$response->headers->set('Content-Disposition','attachment; filename="export.csv"');
+
+        $response->setContent($this->generateContent());
+        
+        return $response;
+    }
+    
+    protected function generateContent()
+    {
+        $labels = $this->gatherLabels();
+        $horizontalHeadersKeys = $this->getHorizontalHeaders();
+        $resultsKeys = $this->export->getQueryKeys($this->exportData);
+        
+        
+        // create a file pointer connected to the output stream
+        $output = fopen('php://output', 'w');
+
+        //title
+        fputcsv($output, array($this->translator->trans($this->export->getTitle())));
+        //blank line
+        fputcsv($output, array(""));
+        
+        //headers
+        $headerLine = array();
+        foreach($horizontalHeadersKeys as $headerKey) {
+            $headerLine[] = array_key_exists('_header', $labels[$headerKey]) ? 
+                    $labels[$headerKey]['_header'] : '';
+        }
+        foreach($resultsKeys as $key) {
+            $headerLine[] = array_key_exists('_header', $labels[$key]) ? 
+                    $labels[$key]['_header'] : '';
+        }
+        fputcsv($output, $headerLine);
+        unset($headerLine); //free memory
+
+        $content = array();
+        foreach($this->result as $row) {
+            $line = array();
+            //set horizontal headers
+            foreach($horizontalHeadersKeys as $headerKey) {
+                
+                if (!array_key_exists($row[$headerKey], $labels[$headerKey])) {
+                    throw new \LogicException("The value '".$row[$headerKey]."' "
+                            . "is not available from the labels defined by aggregators. "
+                            . "The key name was $headerKey");
+                }
+                
+                $line[] = $labels[$headerKey][$row[$headerKey]];
+            }
+            //append result
+            foreach($resultsKeys as $key) {
+                $line[] = $labels[$key][$row[$key]];
+            }
+            // append to content
+            $content[] = $line;
+        }
+        
+        //ordering content
+        array_multisort($content);
+        
+        //generate CSV
+        foreach($content as $line) {
+            fputcsv($output, $line);
+        }
+        
+        $text = stream_get_contents($output);
+        fclose($output);
+        
+        return $text;
+    }
+
+
+    protected function getHorizontalHeaders()
+    {
+        $headers = array();
+        /* @var $aggregator AggregatorInterface */
+        foreach($this->aggregators as $alias => $aggregator) {
+            $headers = array_merge($headers, $aggregator->getQueryKeys($this->aggregatorsData[$alias]));
+        }
+        return $headers;
+    }
+    
+    /**
+     * 
+     * @param mixed $result
+     * @param \Chill\MainBundle\Export\AggregatorInterface[] $aggregators
+     */
+    protected function gatherLabels()
+    {
+        return array_merge(
+                $this->gatherLabelsFromAggregators(),
+                $this->gatherLabelsFromExport()
+                );
+    }
+    
+    protected function gatherLabelsFromAggregators()
+    {
+        $labels = array();
+        /* @var $aggretator \Chill\MainBundle\Export\AggregatorInterface */
+        foreach ($this->aggregators as $alias => $aggregator) {
+            $keys = $aggregator->getQueryKeys($this->aggregatorsData[$alias]);
+            
+            // gather data in an array
+            foreach($keys as $key) {
+                $values = array_map(function($row) use ($key, $alias) {
+                    if (!array_key_exists($key, $row)) {
+                        throw new \LogicException("the key '".$key."' is declared by "
+                                . "the aggregator with alias '".$alias."' but is not "
+                                . "present in results");
+                    }
+                    
+                    return $row[$key];
+                }, $this->result);
+                $labels[$key] = $aggregator->getLabels($key, array_unique($values), 
+                        $this->aggregatorsData[$alias]);
+            }
+        }
+        
+        return $labels;
+    }
+    
+    protected function gatherLabelsFromExport()
+    {
+        $labels = array();
+        $export = $this->export;
+        $keys = $this->export->getQueryKeys($this->exportData);
+        
+        foreach($keys as $key) {
+            $values = array_map(function($row) use ($key, $export) { 
+                    if (!array_key_exists($key, $row)) {
+                        throw new \LogicException("the key '".$key."' is declared by "
+                                . "the export with title '".$export->getTitle()."' but is not "
+                                . "present in results");
+                    }
+                    
+                    return $row[$key];
+                }, $this->result);
+            $labels[$key] = $this->export->getLabels($key, array_unique($values),
+                    $this->exportData);
+        }
+        
+        return $labels;
+    }
+    
+}

Export/FormatterInterface.php

@@ -17,7 +17,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-namespace Chill\Mainbundle\Export;
+namespace Chill\MainBundle\Export;
 
 /**
  *

Form/Type/DataTransformer/AliasToFormatterTransformer.php

@@ -0,0 +1,86 @@
+<?php
+
+/*
+ * Copyright (C) 2016 Champs-Libres <info@champs-libres.coop>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+namespace Chill\MainBundle\Form\Type\DataTransformer;
+
+use Symfony\Component\Form\DataTransformerInterface;
+use Chill\MainBundle\Export\ExportManager;
+use Symfony\Component\Form\Exception\TransformationFailedException;
+
+/**
+ * Transform a formatter alias to an FormatterInterface class
+ *
+ * @author Julien Fastré <julien.fastre@champs-libres.coop>
+ */
+class AliasToFormatterTransformer implements DataTransformerInterface
+{
+    /**
+     *
+     * @var ExportManager
+     */
+    protected $exportManager;
+    
+    public function __construct(ExportManager $exportManager)
+    {
+        $this->exportManager = $exportManager;
+    }
+
+    public function reverseTransform($value)
+    {
+        if ($value === NULL) {
+            return NULL;
+        }
+        
+        if (!value instanceof \Chill\MainBundle\Export\FormatterInterface) {
+            throw new TransformationFailedException("The given value is not a "
+                    . "Chill\MainBundle\Export\FormatterInterface");
+        }
+        
+        // we do not have the alias, which is only known by the container.
+        // we try to check the formatter by the php internal object id.
+        $formatters = $this->exportManager
+                ->getFormattersByTypes(array($value->getType()));
+        foreach($formatters as $alias => $formatter) {
+            if (spl_object_hash($formatter) === spl_object_hash($value)) {
+                return $alias;
+            }
+        }
+        
+        throw new TransformationFailedException("The formatter could not be found "
+                . "by his object_hash. Maybe you created a formatter manually ? "
+                . "Use the export manager to get your formatter.");
+    }
+
+    /**
+     * 
+     * @param type $value
+     * @return \Chill\MainBundle\Export\FormatterInterface
+     * @throws TransformationFailedException
+     */
+    public function transform($value)
+    {
+        if (empty($value)) {
+            throw new TransformationFailedException("The formatter with empty "
+                    . "alias is not allowed. Given value is ".$value);
+        }
+        
+        return $this->exportManager->getFormatter($value);
+    }
+
+}

Form/Type/Export/AggregatorType.php

@@ -23,8 +23,7 @@ use Symfony\Component\Form\AbstractType;
 use Symfony\Component\OptionsResolver\OptionsResolver;
 use Symfony\Component\Form\FormBuilderInterface;
 use Chill\MainBundle\Export\ExportManager;
-use Symfony\Component\Validator\Constraints as Assert;
-use Symfony\Component\Form\Extension\Core\Type\IntegerType;
+use Symfony\Component\Form\Extension\Core\Type\ChoiceType;
 
 /**
  * 
@@ -49,15 +48,14 @@ class AggregatorType extends AbstractType
         $aggregator = $this->exportManager->getAggregator($options['aggregator_alias']);
         
         $builder
-                ->add('order', IntegerType::class, array(
-                    'constraints' => array(
-                        new Assert\GreaterThanOrEqual(array(
-                            'value' => -1
-                        )),
-                        new Assert\LessThanOrEqual(array(
-                            'value' => $options['aggregators_length']
-                        ))
-                    )
+                ->add('enabled', ChoiceType::class, array(
+                    'choices' => array(
+                        'enabled' => true,
+                        'disabled' => false
+                    ),
+                    'multiple' => false,
+                    'expanded' => true,
+                    'choices_as_values' => true
                 ));
         
         $filterFormBuilder = $builder->create('form', 'form', array(

Form/Type/Export/ExportType.php

@@ -88,6 +88,10 @@ class ExportType extends AbstractType
         
         $builder->add($aggregatorBuilder);
         
+        $builder->add('formatter', PickFormatterType::class, array(
+            'export_alias' => $options['export_alias']
+        ));
+        
     }
     
     

Form/Type/Export/FormatterType.php

@@ -0,0 +1,59 @@
+<?php
+
+/*
+ * Copyright (C) 2016 Champs-Libres <info@champs-libres.coop>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+namespace Chill\MainBundle\Form\Type\Export;
+
+use Symfony\Component\Form\AbstractType;
+use Symfony\Component\OptionsResolver\OptionsResolver;
+use Symfony\Component\Form\FormBuilderInterface;
+use Chill\MainBundle\Export\ExportManager;
+
+/**
+ * 
+ *
+ * @author Julien Fastré <julien.fastre@champs-libres.coop>
+ */
+class FormatterType extends AbstractType
+{
+    /**
+     *
+     * @var ExportManager
+     */
+    protected $exportManager;
+    
+    public function __construct(ExportManager $manager) 
+    {
+        $this->exportManager = $manager;
+    }
+    
+    public function configureOptions(OptionsResolver $resolver)
+    {
+        $resolver->setRequired(array('formatter_alias', 'export_alias', 
+            'aggregator_aliases'));
+    }
+    
+    public function buildForm(FormBuilderInterface $builder, array $options)
+    {
+        $formatter = $this->exportManager->getFormatter($options['formatter_alias']);
+        
+        $formatter->buildForm($builder, $options['export_alias'], 
+                $options['aggregator_aliases']);
+    }
+    
+}

Form/Type/Export/PickFormatterType.php

@@ -0,0 +1,69 @@
+<?php
+
+/*
+ * Copyright (C) 2016 Champs-Libres <info@champs-libres.coop>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+namespace Chill\MainBundle\Form\Type\Export;
+
+use Symfony\Component\Form\AbstractType;
+use Symfony\Component\Form\FormBuilderInterface;
+use Symfony\Component\OptionsResolver\OptionsResolver;
+use Chill\MainBundle\Export\ExportManager;
+use Chill\MainBundle\Form\Type\DataTransformer\AliasToFormatterTransformer;
+
+/**
+ * 
+ *
+ * @author Julien Fastré <julien.fastre@champs-libres.coop>
+ */
+class PickFormatterType extends AbstractType
+{
+    protected $exportManager;
+    
+    public function __construct(ExportManager $exportManager)
+    {
+        $this->exportManager = $exportManager;
+    }
+    
+    public function buildForm(FormBuilderInterface $builder, array $options)
+    {
+        $export = $this->exportManager->getExport($options['export_alias']);
+        $allowedFormatters = $this->exportManager
+                ->getFormattersByTypes($export->getAllowedFormattersTypes());
+        //$transformer = new AliasToFormatterTransformer($this->exportManager);
+        
+        //build choices
+        $choices = array();
+        foreach($allowedFormatters as $alias => $formatter) {
+            $choices[$formatter->getName()] = $alias;
+        }
+        
+        $builder->add('alias', 'choice', array(
+            'choices' => $choices,
+            'choices_as_values' => true,
+            'multiple' => false
+        ));
+        
+        //$builder->get('type')->addModelTransformer($transformer);
+    }
+    
+    public function configureOptions(OptionsResolver $resolver)
+    {
+        $resolver->setRequired(array('export_alias'));
+    }
+    
+}

Resources/config/services.yml

@@ -161,3 +161,30 @@ services:
             - "@chill.main.export_manager"
         tags:
             - { name: form.type }
+            
+    chill.main.form.pick_formatter_type:
+        class: Chill\MainBundle\Form\Type\Export\PickFormatterType
+        arguments:
+            - "@chill.main.export_manager"
+        tags:
+            - { name: form.type }
+            
+    chill.main.form.formatter_type:
+        class: Chill\MainBundle\Form\Type\Export\FormatterType
+        arguments:
+            - "@chill.main.export_manager"
+        tags:
+            - { name: form.type }
+            
+    chill.main.countries_repository:
+        class: Doctrine\ORM\EntityRepository
+        factory: ["@doctrine.orm.entity_manager", getRepository]
+        arguments:
+            - "Chill\\MainBundle\\Entity\\Country"
+            
+    chill.main.export.csv_formatter:
+        class: Chill\MainBundle\Export\Formatter\CSVFormatter
+        arguments:
+            - "@translator"
+        tags:
+            - { name: chill.export_formatter, alias: 'csv' }

Resources/views/Export/new.html.twig

@@ -29,7 +29,7 @@
     {{ form_start(form) }}
     <div>
         <h2>{{ 'Filters'| trans }}</h2>
-        {% for filter_form in form.children.filters %}
+        {% for filter_form in form.children.export.children.filters %}
             {{ form_label(filter_form) }}
             {{ form_row(filter_form.enabled) }}
             {{ form_widget(filter_form.form) }}
@@ -38,13 +38,18 @@
     
     <div>
         <h2>{{ 'Aggregators'| trans }}</h2>
-        {% for aggregator_form in form.children.aggregators %}
+        {% for aggregator_form in form.children.export.children.aggregators %}
             {{ form_label(aggregator_form) }}
-            {{ form_row(aggregator_form.order) }}
+            {{ form_row(aggregator_form.enabled) }}
             {{ form_widget(aggregator_form.form) }}
         {% endfor %}
     </div>
     
+    <div>
+        <h2>{{ 'Formatter'| trans }}</h2>
+            {{ form_row(form.children.export.children.formatter.children.alias) }}
+    </div>
+    
     <p>{{ form_widget(form.submit, { 'attr' : { 'class' : 'sc-button btn-action' } } ) }}</p>
     {{ form_end(form) }}
     

Resources/views/Export/new_formatter_step.html.twig

@@ -0,0 +1,38 @@
+{#
+ * Copyright (C) 2014-2015, Champs Libres Cooperative SCRLFS, 
+ <info@champs-libres.coop> / <http://www.champs-libres.coop>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ *  License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+#}
+
+{% extends "ChillMainBundle::layoutWithVerticalMenu.html.twig" %}
+
+{% block title %}{{ export.title|trans }}{% endblock %}
+
+{% block layout_wvm_content  %}
+    
+    <h1>{{ export.title|trans }}</h1>
+    
+    <p>{{ export.description|trans }}</p>
+
+    {{ form_start(form) }}
+    <div>
+        <h2>{{ 'Formatter'| trans }}</h2>
+        {{ form_row(form.children.formatter) }}
+    </div>
+    
+    <p>{{ form_widget(form.submit, { 'attr' : { 'class' : 'sc-button btn-action' } } ) }}</p>
+    {{ form_end(form) }}
+    
+{% endblock layout_wvm_content  %}