From 5f61d15a89d6c57b891cba8f9c40730bfbf03403 Mon Sep 17 00:00:00 2001
From: Thomas Rubini <74205383+ThomasRubini@users.noreply.github.com>
Date: Fri, 20 Jan 2023 18:30:08 +0100
Subject: [PATCH] add search functionality to RecipeModel

---
 Controllers/RecipeController.php |  5 ++++-
 Models/RecipeModel.php           | 35 ++++++++++++++++++++++++++++++++
 2 files changed, 39 insertions(+), 1 deletion(-)

diff --git a/Controllers/RecipeController.php b/Controllers/RecipeController.php
index 02635d7..a453f75 100644
--- a/Controllers/RecipeController.php
+++ b/Controllers/RecipeController.php
@@ -71,7 +71,10 @@ final class RecipeController
     
     private function searchQueryView(Array $A_urlParams = null, Array $A_postParams = null, Array $A_getParams = null)
     {
-        $A_results = array();
+
+        $O_recipeModel = new RecipeModel();
+        $A_results = $O_recipeModel->searchRecipesByName($A_getParams["query"]);
+        
         View::show("recipe/search", array(
             "QUERY" => $A_getParams["query"],
             "RESULTS" => $A_results,
diff --git a/Models/RecipeModel.php b/Models/RecipeModel.php
index a6bd09d..978fa70 100644
--- a/Models/RecipeModel.php
+++ b/Models/RecipeModel.php
@@ -33,4 +33,39 @@ final class RecipeModel
 
         return $A_recipe;
     }
+
+    public function searchRecipesByName($S_query)
+    {
+
+        $O_model = Model::get();
+        $stmt = $O_model->prepare("
+        -- split search term at space
+        with recursive CTE as (
+            select
+                CAST(null as char(255)) as NAME,
+                CONCAT(:query, ' ') as NAMES
+
+            union all
+            select substring_index(NAMES, ' ', 1),
+                    substr(NAMES, instr(NAMES, ' ')+1)
+            from CTE
+            where NAMES != ''
+        )
+
+        -- get a row per occurrence and sort by occurrences number
+        select RECIPE.ID, RECIPE.NAME
+        from CTE
+                JOIN RECIPE
+        WHERE CTE.NAME is not null
+        AND INSTR(RECIPE.NAME, CTE.NAME) > 0
+        GROUP BY RECIPE.ID
+        ORDER BY count(RECIPE.ID) DESC
+        LIMIT 10;
+        ");
+
+        $stmt->bindParam("query", $S_query);
+        $stmt->execute();
+
+        return $stmt->fetchAll();
+    }
 }