feat: add ProductQuery engine

This commit is contained in:
Shivam Mishra 2020-12-24 17:54:07 +05:30
parent d0437cfb59
commit 293f483cb4
2 changed files with 97 additions and 2 deletions

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@ -0,0 +1,89 @@
# Copyright (c) 2015, Frappe Technologies Pvt. Ltd. and Contributors
# License: GNU General Public License v3. See license.txt
from __future__ import unicode_literals
import frappe
class ProductQuery:
"""Query engine for product listing
Attributes:
cart_settings (Document): Settings for Cart
fields (list): Fields to fetch in query
filters (list)
or_filters (list)
page_length (Int): Length of page for the query
settings (Document): Products Settings DocType
"""
def __init__(self):
self.settings = frappe.get_doc("Products Settings")
self.cart_settings = frappe.get_doc("Shopping Cart Settings")
self.page_length = self.settings.products_per_page or 20
self.fields = ['name', 'item_name', 'website_image', 'variant_of', 'has_variants', 'item_group', 'image', 'web_long_description', 'description', 'route']
self.filters = [['show_in_website', '=', 1]]
self.or_filters = []
def query(self, attributes=None, fields=None, search_term=None, start=0):
if fields: self.build_fields_filters(fields)
if search_term: self.build_search_filters(search_term)
result = []
if attributes:
all_items = []
for attribute, values in attributes.items():
if not isinstance(values, list):
values = [values]
items = frappe.get_all(
"Item",
fields=self.fields,
filters=[
*self.filters,
["Item Variant Attribute", "attribute", "=", attribute],`
["Item Variant Attribute", "attribute_value", "in", values],
],
or_filters=self.or_filters,
limit=self.page_length
)
items_dict = {item.name: item for item in items}
all_items.append(set(items.keys()))
result = [items_dict.get(item) for item in list(set.intersection(*all_items))]
else:
result = frappe.get_all("Item", fields=self.fields, filters=self.filters, or_filters=self.or_filters, limit=self.page_length)
return result
def build_fields_filters(self, filters):
for field, values in filters.items():
if not values:
continue
if isinstance(values, list):
self.filters.append([field, 'IN', values])
else:
self.filters.append([field, '=', values])
def build_search_filters(self, search_term):
# Default fields to search from
default_fields = {'name', 'item_name', 'description', 'item_group'}
# Get meta search fields
meta = frappe.get_meta("Item")
meta_fields = set(meta.get_search_fields())
# 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
# Build or filters for query
search = '%{}%'.format(search_term)
self.or_filters += [[field, 'like', search] for field in search_fields]

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@ -1,6 +1,7 @@
import frappe
from erpnext.portal.product_configurator.utils import (get_products_for_website, get_product_settings,
get_field_filter_data, get_attribute_filter_data)
from erpnext.shopping_cart.product_query import ProductQuery
sitemap = 1
@ -13,9 +14,13 @@ def get_context(context):
else:
search = field_filters = attribute_filters = None
context.items = get_products_for_website(field_filters, attribute_filters, search)
# items = get_products_for_website(field_filters, attribute_filters, search)
engine = ProductQuery()
items = engine.query(attribute_filters, field_filters, search)
product_settings = get_product_settings()
context.items = items
context.field_filters = get_field_filter_data() \
if product_settings.enable_field_filters else []
@ -23,6 +28,7 @@ def get_context(context):
if product_settings.enable_attribute_filters else []
context.product_settings = product_settings
context.body_class = "product-page"
context.page_length = product_settings.products_per_page
context.no_cache = 1