From b29c5d6e844d5843c7113ddd75626b2af905f52a Mon Sep 17 00:00:00 2001
From: marination <maricadsouza221197@gmail.com>
Date: Tue, 25 May 2021 01:35:22 +0530
Subject: [PATCH] fix: Discount Filters and Web templates
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

- Fixed discount filters (didn’t work after js render change)
- Fix Item Card Group template height and style
- Add placeholder to missing images in Product Category Cards template
- Code cleanup
---
 .../e_commerce/product_configurator/utils.py  |   2 +-
 erpnext/e_commerce/product_grid.js            |   1 +
 erpnext/e_commerce/product_list.js            |   1 +
 erpnext/e_commerce/product_query.py           |  17 +-
 erpnext/e_commerce/product_view.js            | 142 ++++++++++++++--
 .../product_category_cards.html               |   9 +-
 erpnext/patches/v13_0/create_website_items.py |   6 +-
 erpnext/public/js/wishlist.js                 |   6 +-
 erpnext/public/scss/shopping_cart.scss        |  13 ++
 erpnext/templates/includes/macros.html        |  16 +-
 erpnext/templates/pages/customer_reviews.py   |   6 +-
 erpnext/templates/pages/wishlist.py           |   9 +-
 erpnext/www/all-products/index.js             | 152 ++----------------
 erpnext/www/shop-by-category/index.html       |  12 --
 erpnext/www/shop-by-category/index.py         |  27 ++--
 15 files changed, 215 insertions(+), 204 deletions(-)

diff --git a/erpnext/e_commerce/product_configurator/utils.py b/erpnext/e_commerce/product_configurator/utils.py
index 9faaa5dc5d..5ea32f9f9f 100644
--- a/erpnext/e_commerce/product_configurator/utils.py
+++ b/erpnext/e_commerce/product_configurator/utils.py
@@ -115,7 +115,7 @@ def get_next_attribute_and_values(item_code, selected_attributes):
 			next_attribute = attribute
 			break
 
-	valid_options_for_attributes = frappe._dict({})
+	valid_options_for_attributes = frappe._dict()
 
 	for a in attribute_list:
 		valid_options_for_attributes[a] = set()
diff --git a/erpnext/e_commerce/product_grid.js b/erpnext/e_commerce/product_grid.js
index 6f7b9cc37c..a716efa90a 100644
--- a/erpnext/e_commerce/product_grid.js
+++ b/erpnext/e_commerce/product_grid.js
@@ -12,6 +12,7 @@ erpnext.ProductGrid = class {
 			this.products_section.addClass("hidden");
 		}
 
+		this.products_section.empty();
 		this.make();
 	}
 
diff --git a/erpnext/e_commerce/product_list.js b/erpnext/e_commerce/product_list.js
index 2836c3acc1..fa35c7e66c 100644
--- a/erpnext/e_commerce/product_list.js
+++ b/erpnext/e_commerce/product_list.js
@@ -12,6 +12,7 @@ erpnext.ProductList = class {
 			this.products_section.addClass("hidden");
 		}
 
+		this.products_section.empty();
 		this.make();
 	}
 
diff --git a/erpnext/e_commerce/product_query.py b/erpnext/e_commerce/product_query.py
index 608e9d97fe..ed3c18b3fb 100644
--- a/erpnext/e_commerce/product_query.py
+++ b/erpnext/e_commerce/product_query.py
@@ -106,7 +106,7 @@ class ProductQuery:
 
 	def query_items(self, conditions, or_conditions, substitutions, start=0, with_attributes=False):
 		"""Build a query to fetch Website Items based on field filters."""
-		self.query_fields = (", ").join(self.fields)
+		self.query_fields = ", ".join(self.fields)
 
 		attribute_table = ", `tabItem Variant Attribute` iva" if with_attributes else ""
 
@@ -119,9 +119,9 @@ class ProductQuery:
 				{conditions}
 				{or_conditions}
 			limit {self.page_length} offset {start}
-		""",
-		tuple(substitutions),
-		as_dict=1)
+			""",
+			tuple(substitutions),
+			as_dict=1)
 
 	def query_items_with_attributes(self, attributes, start=0):
 		"""Build a query to fetch Website Items based on field & attribute filters."""
@@ -147,7 +147,7 @@ class ProductQuery:
 
 			all_items.append(set(items_dict.keys()))
 
-		result = [items_dict.get(item) for item in list(set.intersection(*all_items))]
+		result = [items_dict.get(item) for item in set.intersection(*all_items)]
 		return result
 
 	def build_fields_filters(self, filters):
@@ -192,11 +192,8 @@ class ProductQuery:
 
 		# Join the meta fields and default fields set
 		search_fields = default_fields.union(meta_fields)
-		try:
-			if frappe.db.count('Item', cache=True) > 50000:
-				search_fields.remove('description')
-		except KeyError:
-			pass
+		if frappe.db.count('Item', cache=True) > 50000:
+			search_fields.discard('description')
 
 		# Build or filters for query
 		search = '%{}%'.format(search_term)
diff --git a/erpnext/e_commerce/product_view.js b/erpnext/e_commerce/product_view.js
index 372e72281c..a64d55fa0e 100644
--- a/erpnext/e_commerce/product_view.js
+++ b/erpnext/e_commerce/product_view.js
@@ -6,8 +6,11 @@ erpnext.ProductView =  class {
 	*/
 	constructor(options) {
 		Object.assign(this, options);
-		this.preference = "List View";
+		this.preference = this.view_type;
+		this.make();
+	}
 
+	make() {
 		this.products_section.empty();
 		this.prepare_view_toggler();
 		this.get_item_filter_data();
@@ -22,12 +25,12 @@ erpnext.ProductView =  class {
 	}
 
 	get_item_filter_data() {
-		// Get and render all Items related components
+		// Get and render all Product related views
 		let me = this;
 		let args = this.get_query_filters();
 
-		$('#list').prop('disabled', true);
-		$('#image-view').prop('disabled', true);
+		this.disable_view_toggler(true);
+
 		frappe.call({
 			method: 'erpnext.e_commerce.doctype.website_item.website_item.get_product_filter_data',
 			args: args,
@@ -55,14 +58,20 @@ erpnext.ProductView =  class {
 					me.render_no_products_section();
 				}
 
-				$('#list').prop('disabled', false);
-				$('#image-view').prop('disabled', false);
+				me.disable_view_toggler(false);
 			}
 		});
 	}
 
+	disable_view_toggler(disable=false) {
+		$('#list').prop('disabled', disable);
+		$('#image-view').prop('disabled', disable);
+	}
+
 	render_filters(filter_data) {
 		this.get_discount_filter_html(filter_data.discount_filters);
+		this.bind_filters();
+		this.restore_filters_state();
 	}
 
 	render_grid_view(items, settings) {
@@ -226,9 +235,11 @@ erpnext.ProductView =  class {
 				html += `
 					<div class="checkbox">
 						<label data-value="${ filter[0] }">
-							<input type="radio" class="product-filter discount-filter"
+							<input type="radio"
+								class="product-filter discount-filter"
 								name="discount" id="${ filter[0] }"
-								data-filter-name="discount" data-filter-value="${ filter[0] }"
+								data-filter-name="discount"
+								data-filter-value="${ filter[0] }"
 							>
 								<span class="label-area" for="${ filter[0] }">
 									${ filter[1] }
@@ -243,6 +254,97 @@ erpnext.ProductView =  class {
 		}
 	}
 
+	bind_filters() {
+		let me = this;
+		this.field_filters = {};
+		this.attribute_filters = {};
+
+		$('.product-filter').on('change', (e) => {
+			const $checkbox = $(e.target);
+			const is_checked = $checkbox.is(':checked');
+
+			if ($checkbox.is('.attribute-filter')) {
+				const {
+					attributeName: attribute_name,
+					attributeValue: attribute_value
+				} = $checkbox.data();
+
+				if (is_checked) {
+					this.attribute_filters[attribute_name] = this.attribute_filters[attribute_name] || [];
+					this.attribute_filters[attribute_name].push(attribute_value);
+				} else {
+					this.attribute_filters[attribute_name] = this.attribute_filters[attribute_name] || [];
+					this.attribute_filters[attribute_name] = this.attribute_filters[attribute_name].filter(v => v !== attribute_value);
+				}
+
+				if (this.attribute_filters[attribute_name].length === 0) {
+					delete this.attribute_filters[attribute_name];
+				}
+			} else if ($checkbox.is('.field-filter') || $checkbox.is('.discount-filter')) {
+				const {
+					filterName: filter_name,
+					filterValue: filter_value
+				} = $checkbox.data();
+
+				if ($checkbox.is('.discount-filter')) {
+					// clear previous discount filter to accomodate new
+					delete this.field_filters["discount"];
+				}
+				if (is_checked) {
+					this.field_filters[filter_name] = this.field_filters[filter_name] || [];
+					this.field_filters[filter_name].push(filter_value);
+				} else {
+					this.field_filters[filter_name] = this.field_filters[filter_name] || [];
+					this.field_filters[filter_name] = this.field_filters[filter_name].filter(v => v !== filter_value);
+				}
+
+				if (this.field_filters[filter_name].length === 0) {
+					delete this.field_filters[filter_name];
+				}
+			}
+
+			let route_params = frappe.utils.get_query_params();
+			const query_string = get_query_string({
+				start: if_key_exists(route_params.start) || 0,
+				field_filters: JSON.stringify(if_key_exists(this.field_filters)),
+				attribute_filters: JSON.stringify(if_key_exists(this.attribute_filters)),
+			});
+			window.history.pushState('filters', '', `${location.pathname}?` + query_string);
+
+			$('.page_content input').prop('disabled', true);
+			me.make();
+			$('.page_content input').prop('disabled', false);
+		});
+	}
+
+	restore_filters_state() {
+		const filters = frappe.utils.get_query_params();
+		let {field_filters, attribute_filters} = filters;
+
+		if (field_filters) {
+			field_filters = JSON.parse(field_filters);
+			for (let fieldname in field_filters) {
+				const values = field_filters[fieldname];
+				const selector = values.map(value => {
+					return `input[data-filter-name="${fieldname}"][data-filter-value="${value}"]`;
+				}).join(',');
+				$(selector).prop('checked', true);
+			}
+			this.field_filters = field_filters;
+		}
+		if (attribute_filters) {
+			attribute_filters = JSON.parse(attribute_filters);
+			for (let attribute in attribute_filters) {
+				const values = attribute_filters[attribute];
+				const selector = values.map(value => {
+					return `input[data-attribute-name="${attribute}"][data-attribute-value="${value}"]`;
+				}).join(',');
+				$(selector).prop('checked', true);
+			}
+			this.attribute_filters = attribute_filters;
+		}
+	}
+
 	render_no_products_section() {
 		this.products_section.append(`
 			<br><br><br>
@@ -278,4 +380,26 @@ erpnext.ProductView =  class {
 			$("#product-listing").prepend(sub_group_html);
 		}
 	}
-};
\ No newline at end of file
+};
+
+function get_query_string(object) {
+	const url = new URLSearchParams();
+	for (let key in object) {
+		const value = object[key];
+		if (value) {
+			url.append(key, value);
+		}
+	}
+	return url.toString();
+}
+
+function if_key_exists(obj) {
+	let exists = false;
+	for (let key in obj) {
+		if (obj.hasOwnProperty(key) && obj[key]) {
+			exists = true;
+			break;
+		}
+	}
+	return exists ? obj : undefined;
+}
\ No newline at end of file
diff --git a/erpnext/e_commerce/web_template/product_category_cards/product_category_cards.html b/erpnext/e_commerce/web_template/product_category_cards/product_category_cards.html
index 06b76af901..6d75a8b1d5 100644
--- a/erpnext/e_commerce/web_template/product_category_cards/product_category_cards.html
+++ b/erpnext/e_commerce/web_template/product_category_cards/product_category_cards.html
@@ -6,8 +6,15 @@
 }) -%}
 <div class="card h-100">
 	{% if image %}
-	<img class="card-img-top" src="{{ image }}" alt="{{ title }}">
+	<img class="card-img-top" src="{{ image }}" alt="{{ title }}" style="max-height: 200px;">
+	{% else %}
+	<div class="placeholder-div" style="max-height: 200px;">
+		<span class="placeholder">
+			{{ frappe.utils.get_abbr(title or '') }}
+		</span>
+	</div>
 	{% endif %}
+
 	<div class="card-body text-center text-muted small">
 		{{ title or '' }}
 	</div>
diff --git a/erpnext/patches/v13_0/create_website_items.py b/erpnext/patches/v13_0/create_website_items.py
index 2e1f3052c1..78e9dda42a 100644
--- a/erpnext/patches/v13_0/create_website_items.py
+++ b/erpnext/patches/v13_0/create_website_items.py
@@ -54,12 +54,12 @@ def execute():
 		for doctype in ("Website Item Group", "Item Website Specification"):
 			web_item, item = website_item.name, item.item_code
 			frappe.db.sql(f"""
-				Update `tab{doctype}`
+				Update
+					`tab{doctype}`
 				set
 					parenttype = 'Website Item',
 					parent = '{web_item}'
 				where
 					parenttype = 'Item'
 					and parent = '{item}'
-				"""
-			)
\ No newline at end of file
+				""")
\ No newline at end of file
diff --git a/erpnext/public/js/wishlist.js b/erpnext/public/js/wishlist.js
index 1c5bee681f..8264772864 100644
--- a/erpnext/public/js/wishlist.js
+++ b/erpnext/public/js/wishlist.js
@@ -84,8 +84,8 @@ $.extend(wishlist, {
 			const $wish_icon = $btn.find('.wish-icon');
 			let me = this;
 
-			if(frappe.session.user==="Guest") {
-				if(localStorage) {
+			if (frappe.session.user==="Guest") {
+				if (localStorage) {
 					localStorage.setItem("last_visited", window.location.pathname);
 				}
 				window.location.href = "/login";
@@ -137,7 +137,7 @@ $.extend(wishlist, {
 			failure_action: method to execute on failure,
 			async: make call asynchronously (true/false).	*/
 		if (frappe.session.user==="Guest") {
-			if(localStorage) {
+			if (localStorage) {
 				localStorage.setItem("last_visited", window.location.pathname);
 			}
 			window.location.href = "/login";
diff --git a/erpnext/public/scss/shopping_cart.scss b/erpnext/public/scss/shopping_cart.scss
index 33bd88f288..df0d51c27c 100644
--- a/erpnext/public/scss/shopping_cart.scss
+++ b/erpnext/public/scss/shopping_cart.scss
@@ -782,3 +782,16 @@ body.product-page {
 #toggle-view {
 	float: right;
 }
+
+.placeholder-div {
+	height:80%;
+	width: -webkit-fill-available;
+	padding: 50px;
+	text-align: center;
+	background-color: #F9FAFA;
+	border-top-left-radius: calc(0.75rem - 1px);
+	border-top-right-radius: calc(0.75rem - 1px);
+}
+.placeholder {
+	font-size: 72px;
+}
diff --git a/erpnext/templates/includes/macros.html b/erpnext/templates/includes/macros.html
index aec23a29e3..e3511de780 100644
--- a/erpnext/templates/includes/macros.html
+++ b/erpnext/templates/includes/macros.html
@@ -73,10 +73,10 @@
 
 {% if is_featured %}
 <div class="col-sm-{{ col_size*2 }} item-card">
-	<div class="card featured-item {{ align_items_class }}">
+	<div class="card featured-item {{ align_items_class }}" style="height: 360px;">
 		{% if image %}
 		<div class="row no-gutters">
-			<div class="col-md-6">
+			<div class="col-md-5 ml-4">
 				<img class="card-img" src="{{ image }}" alt="{{ title }}">
 			</div>
 			<div class="col-md-6">
@@ -92,7 +92,7 @@
 </div>
 {% else %}
 <div class="col-sm-{{ col_size }} item-card">
-	<div class="card {{ align_items_class }}">
+	<div class="card {{ align_items_class }}" style="height: 360px;">
 		{% if image %}
 			<div class="card-img-container">
 				<a href="/{{ item.route or '#' }}" style="text-decoration: none;">
@@ -119,19 +119,17 @@
 	'text-left': align == 'Left' or is_featured,
 }) -%}
 <div class="card-body {{ align_class }}" style="width:100%">
-	<div style="margin-top: 16px; display: flex;">
+	<div class="mt-4">
 		<a href="/{{ item.route or '#' }}">
 			<div class="product-title">
 				{{ title or '' }}
-				{% if item.in_stock %}
-				<span class="indicator {{ item.in_stock }} card-indicator"></span>
-				{% endif %}
 			</div>
 		</a>
 	</div>
 	{% if is_featured %}
-		<div class="product-price">{{ item.formatted_price or '' }}</div>
-		<div class="product-description ellipsis">{{ description or '' }}</div>
+		<div class="product-description ellipsis text-muted" style="white-space: normal;">
+			{{ description or '' }}
+		</div>
 	{% else %}
 		<div class="product-category">{{ item.item_group or '' }}</div>
 	{% endif %}
diff --git a/erpnext/templates/pages/customer_reviews.py b/erpnext/templates/pages/customer_reviews.py
index 3bb0142d0a..b9c8a013c7 100644
--- a/erpnext/templates/pages/customer_reviews.py
+++ b/erpnext/templates/pages/customer_reviews.py
@@ -1,15 +1,13 @@
 # Copyright (c) 2015, Frappe Technologies Pvt. Ltd. and Contributors
 # License: GNU General Public License v3. See license.txt
-from __future__ import unicode_literals
-
-no_cache = 1
-
 import frappe
 from erpnext.e_commerce.doctype.item_review.item_review import get_item_reviews
 
 def get_context(context):
+	context.no_cache = 1
 	context.full_page = True
 	context.reviews = None
+
 	if frappe.form_dict and frappe.form_dict.get("item_code"):
 		context.item_code = frappe.form_dict.get("item_code")
 		context.web_item = frappe.db.get_value("Website Item", {"item_code": context.item_code}, "name")
diff --git a/erpnext/templates/pages/wishlist.py b/erpnext/templates/pages/wishlist.py
index e534a23b9d..9bbec33cbe 100644
--- a/erpnext/templates/pages/wishlist.py
+++ b/erpnext/templates/pages/wishlist.py
@@ -1,9 +1,5 @@
 # Copyright (c) 2021, Frappe Technologies Pvt. Ltd. and Contributors
 # License: GNU General Public License v3. See license.txt
-from __future__ import unicode_literals
-
-no_cache = 1
-
 import frappe
 from erpnext.utilities.product import get_price
 from erpnext.e_commerce.shopping_cart.cart import _set_price_list
@@ -32,6 +28,7 @@ def get_context(context):
 
 	context.items = items
 	context.settings = settings
+	context.no_cache = 1
 
 def get_stock_availability(item_code, warehouse):
 	stock_qty = frappe.utils.flt(
@@ -42,7 +39,7 @@ def get_stock_availability(item_code, warehouse):
 			},
 			"actual_qty")
 	)
-	return True if stock_qty else False
+	return bool(stock_qty)
 
 def get_wishlist_items():
 	if frappe.db.exists("Wishlist", frappe.session.user):
@@ -53,5 +50,5 @@ def get_wishlist_items():
 			from
 				`tabWishlist Items`
 			where
-				parent=%(user)s""" % {"user": frappe.db.escape(frappe.session.user)}, as_dict=1)
+				parent=%(user)s""", {"user": frappe.session.user}, as_dict=1)
 	return
\ No newline at end of file
diff --git a/erpnext/www/all-products/index.js b/erpnext/www/all-products/index.js
index acf42f27fd..336aa9a1d4 100644
--- a/erpnext/www/all-products/index.js
+++ b/erpnext/www/all-products/index.js
@@ -5,86 +5,18 @@ $(() => {
 			let is_item_group_page = $(".item-group-content").data("item-group");
 			this.item_group = is_item_group_page || null;
 
-			// Render Products and Discount Filters
+			let view_type = "List View";
+
+			// Render Product Views and setup Filters
 			frappe.require('assets/js/e-commerce.min.js', function() {
 				new erpnext.ProductView({
-					view_type: "List",
+					view_type: view_type,
 					products_section: $('#product-listing'),
 					item_group: me.item_group
 				});
 			});
 
-			this.bind_filters();
 			this.bind_card_actions();
-			this.bind_search();
-			this.restore_filters_state();
-		}
-
-		bind_filters() {
-			let me = this;
-			this.field_filters = {};
-			this.attribute_filters = {};
-
-			$('.product-filter').on('change', frappe.utils.debounce((e) => {
-				const $checkbox = $(e.target);
-				const is_checked = $checkbox.is(':checked');
-
-				if ($checkbox.is('.attribute-filter')) {
-					const {
-						attributeName: attribute_name,
-						attributeValue: attribute_value
-					} = $checkbox.data();
-
-					if (is_checked) {
-						this.attribute_filters[attribute_name] = this.attribute_filters[attribute_name] || [];
-						this.attribute_filters[attribute_name].push(attribute_value);
-					} else {
-						this.attribute_filters[attribute_name] = this.attribute_filters[attribute_name] || [];
-						this.attribute_filters[attribute_name] = this.attribute_filters[attribute_name].filter(v => v !== attribute_value);
-					}
-
-					if (this.attribute_filters[attribute_name].length === 0) {
-						delete this.attribute_filters[attribute_name];
-					}
-				} else if ($checkbox.is('.field-filter') || $checkbox.is('.discount-filter')) {
-					const {
-						filterName: filter_name,
-						filterValue: filter_value
-					} = $checkbox.data();
-
-					if ($checkbox.is('.discount-filter')) {
-						// clear previous discount filter to accomodate new
-						delete this.field_filters["discount"];
-					}
-					if (is_checked) {
-						this.field_filters[filter_name] = this.field_filters[filter_name] || [];
-						this.field_filters[filter_name].push(filter_value);
-					} else {
-						this.field_filters[filter_name] = this.field_filters[filter_name] || [];
-						this.field_filters[filter_name] = this.field_filters[filter_name].filter(v => v !== filter_value);
-					}
-
-					if (this.field_filters[filter_name].length === 0) {
-						delete this.field_filters[filter_name];
-					}
-				}
-
-				const query_string = get_query_string({
-					field_filters: JSON.stringify(if_key_exists(this.field_filters)),
-					attribute_filters: JSON.stringify(if_key_exists(this.attribute_filters)),
-				});
-				window.history.pushState('filters', '', `${location.pathname}?` + query_string);
-
-				$('.page_content input').prop('disabled', true);
-				frappe.require('assets/js/e-commerce.min.js', function() {
-					new erpnext.ProductView({
-						view_type: "List",
-						products_section: $('#product-listing'),
-						item_group: me.item_group
-					});
-					$('.page_content input').prop('disabled', false);
-				});
-			}, 1000));
 		}
 
 		bind_card_actions() {
@@ -92,70 +24,20 @@ $(() => {
 			e_commerce.wishlist.bind_wishlist_action();
 		}
 
-		bind_search() {
-			$('input[type=search]').on('keydown', (e) => {
-				if (e.keyCode === 13) {
-					// Enter
-					const value = e.target.value;
-					if (value) {
-						window.location.search = 'search=' + e.target.value;
-					} else {
-						window.location.search = '';
-					}
-				}
-			});
-		}
-
-		restore_filters_state() {
-			const filters = frappe.utils.get_query_params();
-			let {field_filters, attribute_filters} = filters;
-
-			if (field_filters) {
-				field_filters = JSON.parse(field_filters);
-				for (let fieldname in field_filters) {
-					const values = field_filters[fieldname];
-					const selector = values.map(value => {
-						return `input[data-filter-name="${fieldname}"][data-filter-value="${value}"]`;
-					}).join(',');
-					$(selector).prop('checked', true);
-				}
-				this.field_filters = field_filters;
-			}
-			if (attribute_filters) {
-				attribute_filters = JSON.parse(attribute_filters);
-				for (let attribute in attribute_filters) {
-					const values = attribute_filters[attribute];
-					const selector = values.map(value => {
-						return `input[data-attribute-name="${attribute}"][data-attribute-value="${value}"]`;
-					}).join(',');
-					$(selector).prop('checked', true);
-				}
-				this.attribute_filters = attribute_filters;
-			}
-		}
+		// bind_search() {
+		// 	$('input[type=search]').on('keydown', (e) => {
+		// 		if (e.keyCode === 13) {
+		// 			// Enter
+		// 			const value = e.target.value;
+		// 			if (value) {
+		// 				window.location.search = 'search=' + e.target.value;
+		// 			} else {
+		// 				window.location.search = '';
+		// 			}
+		// 		}
+		// 	});
+		// }
 	}
 
 	new ProductListing();
-
-	function get_query_string(object) {
-		const url = new URLSearchParams();
-		for (let key in object) {
-			const value = object[key];
-			if (value) {
-				url.append(key, value);
-			}
-		}
-		return url.toString();
-	}
-
-	function if_key_exists(obj) {
-		let exists = false;
-		for (let key in obj) {
-			if (obj.hasOwnProperty(key) && obj[key]) {
-				exists = true;
-				break;
-			}
-		}
-		return exists ? obj : undefined;
-	}
 });
diff --git a/erpnext/www/shop-by-category/index.html b/erpnext/www/shop-by-category/index.html
index ac0b317665..04d2d578cb 100644
--- a/erpnext/www/shop-by-category/index.html
+++ b/erpnext/www/shop-by-category/index.html
@@ -11,18 +11,6 @@
 		width: 300px !important;
 		margin: 30px !important;
 	}
-	.placeholder-div {
-		height:80%;
-		width: -webkit-fill-available;
-		padding: 50px;
-		text-align: center;
-		background-color: #F9FAFA;
-		border-top-left-radius: calc(0.75rem - 1px);
-		border-top-right-radius: calc(0.75rem - 1px);
-	}
-	.placeholder {
-		font-size: 72px;
-	}
 </style>
 {% endblock %}
 
diff --git a/erpnext/www/shop-by-category/index.py b/erpnext/www/shop-by-category/index.py
index c295335cdf..700d5b22b8 100644
--- a/erpnext/www/shop-by-category/index.py
+++ b/erpnext/www/shop-by-category/index.py
@@ -4,7 +4,7 @@ from frappe import _
 sitemap = 1
 
 def get_context(context):
-	settings = frappe.get_doc("E Commerce Settings")
+	settings = frappe.get_cached_doc("E Commerce Settings")
 	context.categories_enabled = settings.enable_field_filters
 
 	if context.categories_enabled:
@@ -23,9 +23,9 @@ def get_slideshow(slideshow):
 		'rounded': 1,
 		'slider_name': "Categories"
 	}
-	slideshow = frappe.get_doc("Website Slideshow", slideshow)
+	slideshow = frappe.get_cached_doc("Website Slideshow", slideshow)
 	slides = slideshow.get({"doctype": "Website Slideshow Item"})
-	for index, slide in enumerate(slides):
+	for index, slide in enumerate(slides, start=1):
 		values[f"slide_{index + 1}_image"] = slide.image
 		values[f"slide_{index + 1}_title"] = slide.heading
 		values[f"slide_{index + 1}_subtitle"] = slide.description
@@ -41,7 +41,7 @@ def get_tabs(categories):
 	}
 
 	categorical_data = get_category_records(categories)
-	for index, tab in enumerate(categorical_data):
+	for index, tab in enumerate(categorical_data, start=1):
 		tab_values[f"tab_{index + 1}_title"] = frappe.unscrub(tab)
 		# pre-render cards for each tab
 		tab_values[f"tab_{index + 1}_content"] = frappe.render_template(
@@ -55,19 +55,24 @@ def get_category_records(categories):
 	for category in categories:
 		if category == "item_group":
 			categorical_data["item_group"] = frappe.db.sql("""
-				Select name, parent_item_group, is_group, image, route
-				from `tabItem Group`
-				where parent_item_group='All Item Groups'
-				and show_in_website=1""", as_dict=1)
+				Select
+					name, parent_item_group, is_group, image, route
+				from
+					`tabItem Group`
+				where
+					parent_item_group = 'All Item Groups'
+					and show_in_website = 1
+				""",
+				as_dict=1)
 		else:
 			doctype = frappe.unscrub(category)
 			fields = ["name"]
 			if frappe.get_meta(doctype, cached=True).get_field("image"):
 				fields += ["image"]
 
-			categorical_data[category] = frappe.db.sql("""
-				Select {fields}
-				from `tab{doctype}`""".format(doctype=doctype, fields=",".join(fields)), as_dict=1)
+			categorical_data[category] = frappe.db.sql(f"""
+				Select {",".join(fields)}
+				from `tab{doctype}`""", as_dict=1)
 
 	return categorical_data