From 7faca50b738ec03bd2f4d3879f43b812a5dd7e79 Mon Sep 17 00:00:00 2001
From: Luke Else <mail@luke-else.co.uk>
Date: Mon, 12 Feb 2024 18:27:04 +0000
Subject: [PATCH] #7 Added basic set of product orderings.

---
 controllers/database/product.py | 10 +++++++---
 controllers/web/product.py      | 31 +++++++++++++++++++++++++++++--
 templates/Car Parts.html        | 14 +++++++-------
 3 files changed, 43 insertions(+), 12 deletions(-)

diff --git a/controllers/database/product.py b/controllers/database/product.py
index ce0ac52..0a65697 100644
--- a/controllers/database/product.py
+++ b/controllers/database/product.py
@@ -30,11 +30,13 @@ class ProductController(DatabaseController):
 
         self.do(query, params)
 
-    def read(self, name: str = "") -> list[Product] | None:
+    def read(self, name: str = "", filter: str = "") -> list[Product] | None:
         params = [
             "%" + name + "%"
         ]
+
         query = "SELECT * FROM Products WHERE name like ?"
+        query += filter
 
         return self.get_many(query, params)
 
@@ -46,8 +48,8 @@ class ProductController(DatabaseController):
 
         return self.get_one(query, params)
 
-    def read_all(self, category: str = "",
-                 search_term: str = "") -> list[Product] | None:
+    def read_all(self, category: str = "", search_term: str = "",
+                 filter: str = "") -> list[Product] | None:
         params = [
             "%" + category + "%",
             "%" + search_term + "%"
@@ -59,6 +61,8 @@ class ProductController(DatabaseController):
             AND Products.name LIKE ?
         """
 
+        query += filter
+
         return self.get_many(query, params)
 
     def read_user(self, user_id: int) -> list[Product] | None:
diff --git a/controllers/web/product.py b/controllers/web/product.py
index 503beb1..58e3100 100644
--- a/controllers/web/product.py
+++ b/controllers/web/product.py
@@ -19,6 +19,33 @@ import os
 
 blueprint = Blueprint("products", __name__, url_prefix="/products")
 
+# List of available filters for the user to select
+FILTERS = {
+    # ANY INFOMRATION PUT INTO THE VALUES HERE WILL BE INTERPRETED AS SQL!!!
+    'Relevance': 'ORDER BY quantityAvailable DESC',
+    'Price: High -> Low': 'ORDER BY cost DESC',
+    'Price: Low -> High': 'ORDER BY cost'
+}
+
+
+@blueprint.context_processor
+def filter_list():
+    """ Places a list of all the available filters in the
+        products context
+    """
+    return dict(filters=FILTERS)
+
+
+def get_filter():
+    """ Return any filters that are currently active on the page """
+    filter = request.args.get('filter')
+    if filter is None:
+        filter = 'Relevance'
+
+    if filter in FILTERS:
+        return FILTERS[filter]
+    return FILTERS['Relevance']
+
 
 @blueprint.context_processor
 def category_list():
@@ -44,9 +71,9 @@ def category(category: str):
     # Check to see if there is a custome search term
     search_term = request.args.get("search", type=str)
     if search_term is not None:
-        products = database.read_all(category, search_term)
+        products = database.read_all(category, search_term, get_filter())
     else:
-        products = database.read_all(category)
+        products = database.read_all(category, "", get_filter())
 
     # No Products visible
     if products is None:
diff --git a/templates/Car Parts.html b/templates/Car Parts.html
index 26bf504..4571cb9 100644
--- a/templates/Car Parts.html	
+++ b/templates/Car Parts.html	
@@ -10,13 +10,13 @@
                     <input type="text" class="vrn-text" placeholder="YOUR REG" name="vrn">
                 </span>
         </div>
-
-        <select class="product-filter not-required" name="filter">
-            <option value="relevance">Most Relevant</option>
-            <option value="price-lh">Price: Low -> High</option>
-            <option value="price-hl">Price: High -> Low</option>
-        </select>
-
+        {% if filters != None %}
+            <select class="product-filter not-required" name="filter">
+                {% for filter in filters.keys() %}
+                    <option value="{{filter}}">{{filter}}</option>
+                {% endfor %}
+            </select>
+        {% endif %}
         <input type="submit" class="search-button" value="Filter">
     </form>
 </div>