fix activity timeline using TimelineSingleQuery

src/Bundle/ChillMainBundle/Timeline/TimelineBuilder.php

@@ -201,10 +201,13 @@ class TimelineBuilder implements ContainerAwareInterface
     /**
      * return the SQL SELECT query as a string,
      *
-     * @return string
+     * @return array: first parameter is the sql string, second an array with parameters
      */
-    private function buildSelectQuery(array $data): array
+    private function buildSelectQuery($data): array
     {
+        return [$data->buildSql(), $data->getParameters()];
+
+        // dead code
         $parameters = [];
 
         $sql = sprintf(

src/Bundle/ChillMainBundle/Timeline/TimelineSingleQuery.php

@@ -0,0 +1,155 @@
+<?php
+
+namespace Chill\MainBundle\Timeline;
+
+
+class TimelineSingleQuery
+{
+    private ?string $id;
+
+    private ?string $date;
+
+    private ?string $key;
+
+    private ?string $from;
+
+    private ?string $where;
+
+    private array $parameters = [];
+
+    private bool $distinct = false;
+
+    public function __construct(
+        string $id = null,
+        string $date = null,
+        string $key = null,
+        string $from = null,
+        string $where = null,
+        array $parameters = []
+    ) {
+        $this->id = $id;
+        $this->date = $date;
+        $this->key = $key;
+        $this->from = $from;
+        $this->where = $where;
+        $this->parameters = $parameters;
+    }
+
+    public static function fromArray(array $a)
+    {
+        return new TimelineSingleQuery(
+            $a['id'],
+            $a['date'],
+            $a['type'] ?? $a['key'],
+            $a['FROM'] ?? $a['from'],
+            $a['WHERE'] ?? $a['where'],
+            $a['parameters']);
+    }
+
+    public function getId(): string
+    {
+        return $this->id;
+    }
+    
+    public function setId(string $id): self
+    {
+        $this->id = $id;
+    
+        return $this;
+    }
+
+    public function getDate(): string
+    {
+        return $this->date;
+    }
+    
+    public function setDate(string $date): self
+    {
+        $this->date = $date;
+    
+        return $this;
+    }
+
+    public function getKey(): string
+    {
+        return $this->key;
+    }
+    
+    public function setKey(string $key): self
+    {
+        $this->key = $key;
+    
+        return $this;
+    }
+
+    public function getFrom(): string
+    {
+        return $this->from;
+    }
+    
+    public function setFrom(string $from): self
+    {
+        $this->from = $from;
+    
+        return $this;
+    }
+
+    public function getWhere(): string
+    {
+        return $this->where;
+    }
+    
+    public function setWhere(string $where): self
+    {
+        $this->where = $where;
+    
+        return $this;
+    }
+
+    public function getParameters(): array
+    {
+        return $this->parameters;
+    }
+    
+    public function setParameters(array $parameters): self
+    {
+        $this->parameters = $parameters;
+    
+        return $this;
+    }
+
+    public function setDistinct(bool $distinct): self
+    {
+        $this->distinct = $distinct;
+
+        return $this;
+    }
+
+    public function isDistinct(): bool
+    {
+        return $this->distinct;
+    }
+
+    public function buildSql(): string
+    {
+        $parameters = [];
+
+        $sql = \strtr(
+                'SELECT {distinct} {id} AS id, '
+                . '{date} AS "date", '
+                . "'{key}' AS type "
+                . 'FROM {from} '
+                . 'WHERE {where}',
+                [
+                    '{distinct}' => $this->distinct ? 'DISTINCT' : '',
+                    '{id}' => $this->getId(),
+                    '{date}' => $this->getDate(),
+                    '{key}' => $this->getKey(),
+                    '{from}' => $this->getFrom(),
+                    '{where}' => $this->getWhere(),
+                ]
+            );
+
+        return $sql;
+    }
+}