432 lines
12 KiB
Python
432 lines
12 KiB
Python
import frappe
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from frappe.utils import cint
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from erpnext.portal.product_configurator.item_variants_cache import ItemVariantsCacheManager
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def get_field_filter_data():
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product_settings = get_product_settings()
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filter_fields = [row.fieldname for row in product_settings.filter_fields]
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meta = frappe.get_meta('Item')
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fields = [df for df in meta.fields if df.fieldname in filter_fields]
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filter_data = []
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for f in fields:
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doctype = f.get_link_doctype()
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# apply enable/disable filter
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meta = frappe.get_meta(doctype)
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filters = {}
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if meta.has_field('enabled'):
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filters['enabled'] = 1
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if meta.has_field('disabled'):
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filters['disabled'] = 0
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values = [d.name for d in frappe.get_all(doctype, filters)]
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filter_data.append([f, values])
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return filter_data
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def get_attribute_filter_data():
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product_settings = get_product_settings()
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attributes = [row.attribute for row in product_settings.filter_attributes]
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attribute_docs = [
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frappe.get_doc('Item Attribute', attribute) for attribute in attributes
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]
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# mark attribute values as checked if they are present in the request url
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if frappe.form_dict:
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for attr in attribute_docs:
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if attr.name in frappe.form_dict:
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value = frappe.form_dict[attr.name]
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if value:
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enabled_values = value.split(',')
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else:
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enabled_values = []
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for v in enabled_values:
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for item_attribute_row in attr.item_attribute_values:
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if v == item_attribute_row.attribute_value:
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item_attribute_row.checked = True
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return attribute_docs
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def get_products_for_website(field_filters=None, attribute_filters=None, search=None):
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if attribute_filters:
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item_codes = get_item_codes_by_attributes(attribute_filters)
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items_by_attributes = get_items([['name', 'in', item_codes]])
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if field_filters:
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items_by_fields = get_items_by_fields(field_filters)
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if attribute_filters and not field_filters:
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return items_by_attributes
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if field_filters and not attribute_filters:
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return items_by_fields
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if field_filters and attribute_filters:
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items_intersection = []
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item_codes_in_attribute = [item.name for item in items_by_attributes]
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for item in items_by_fields:
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if item.name in item_codes_in_attribute:
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items_intersection.append(item)
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return items_intersection
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if search:
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return get_items(search=search)
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return get_items()
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@frappe.whitelist(allow_guest=True)
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def get_products_html_for_website(field_filters=None, attribute_filters=None):
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field_filters = frappe.parse_json(field_filters)
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attribute_filters = frappe.parse_json(attribute_filters)
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items = get_products_for_website(field_filters, attribute_filters)
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html = ''.join(get_html_for_items(items))
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if not items:
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html = frappe.render_template('erpnext/www/all-products/not_found.html', {})
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return html
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def get_item_codes_by_attributes(attribute_filters, template_item_code=None):
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items = []
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for attribute, values in attribute_filters.items():
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attribute_values = values
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if not isinstance(attribute_values, list):
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attribute_values = [attribute_values]
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if not attribute_values: continue
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wheres = []
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query_values = []
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for attribute_value in attribute_values:
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wheres.append('( attribute = %s and attribute_value = %s )')
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query_values += [attribute, attribute_value]
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attribute_query = ' or '.join(wheres)
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if template_item_code:
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variant_of_query = 'AND t2.variant_of = %s'
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query_values.append(template_item_code)
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else:
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variant_of_query = ''
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query = '''
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SELECT
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t1.parent
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FROM
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`tabItem Variant Attribute` t1
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WHERE
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1 = 1
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AND (
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{attribute_query}
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)
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AND EXISTS (
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SELECT
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1
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FROM
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`tabItem` t2
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WHERE
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t2.name = t1.parent
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{variant_of_query}
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)
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GROUP BY
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t1.parent
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ORDER BY
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NULL
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'''.format(attribute_query=attribute_query, variant_of_query=variant_of_query)
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item_codes = set([r[0] for r in frappe.db.sql(query, query_values)])
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items.append(item_codes)
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res = list(set.intersection(*items))
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return res
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@frappe.whitelist(allow_guest=True)
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def get_attributes_and_values(item_code):
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'''Build a list of attributes and their possible values.
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This will ignore the values upon selection of which there cannot exist one item.
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'''
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item_cache = ItemVariantsCacheManager(item_code)
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item_variants_data = item_cache.get_item_variants_data()
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attributes = get_item_attributes(item_code)
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attribute_list = [a.attribute for a in attributes]
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valid_options = {}
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for item_code, attribute, attribute_value in item_variants_data:
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if attribute in attribute_list:
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valid_options.setdefault(attribute, set()).add(attribute_value)
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item_attribute_values = frappe.db.get_all('Item Attribute Value',
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['parent', 'attribute_value', 'idx'], order_by='parent asc, idx asc')
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ordered_attribute_value_map = frappe._dict()
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for iv in item_attribute_values:
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ordered_attribute_value_map.setdefault(iv.parent, []).append(iv.attribute_value)
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# build attribute values in idx order
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for attr in attributes:
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valid_attribute_values = valid_options.get(attr.attribute, [])
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ordered_values = ordered_attribute_value_map.get(attr.attribute, [])
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attr['values'] = [v for v in ordered_values if v in valid_attribute_values]
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return attributes
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@frappe.whitelist(allow_guest=True)
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def get_next_attribute_and_values(item_code, selected_attributes):
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'''Find the count of Items that match the selected attributes.
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Also, find the attribute values that are not applicable for further searching.
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If less than equal to 10 items are found, return item_codes of those items.
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If one item is matched exactly, return item_code of that item.
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'''
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selected_attributes = frappe.parse_json(selected_attributes)
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item_cache = ItemVariantsCacheManager(item_code)
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item_variants_data = item_cache.get_item_variants_data()
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attributes = get_item_attributes(item_code)
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attribute_list = [a.attribute for a in attributes]
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filtered_items = get_items_with_selected_attributes(item_code, selected_attributes)
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next_attribute = None
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for attribute in attribute_list:
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if attribute not in selected_attributes:
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next_attribute = attribute
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break
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valid_options_for_attributes = frappe._dict({})
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for a in attribute_list:
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valid_options_for_attributes[a] = set()
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selected_attribute = selected_attributes.get(a, None)
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if selected_attribute:
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# already selected attribute values are valid options
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valid_options_for_attributes[a].add(selected_attribute)
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for row in item_variants_data:
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item_code, attribute, attribute_value = row
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if item_code in filtered_items and attribute not in selected_attributes and attribute in attribute_list:
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valid_options_for_attributes[attribute].add(attribute_value)
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optional_attributes = item_cache.get_optional_attributes()
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exact_match = []
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# search for exact match if all selected attributes are required attributes
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if len(selected_attributes.keys()) >= (len(attribute_list) - len(optional_attributes)):
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item_attribute_value_map = item_cache.get_item_attribute_value_map()
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for item_code, attr_dict in item_attribute_value_map.items():
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if item_code in filtered_items and set(attr_dict.keys()) == set(selected_attributes.keys()):
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exact_match.append(item_code)
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filtered_items_count = len(filtered_items)
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# get product info if exact match
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from erpnext.shopping_cart.product_info import get_product_info_for_website
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if exact_match:
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data = get_product_info_for_website(exact_match[0])
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product_info = data.product_info
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product_info["allow_items_not_in_stock"] = cint(data.cart_settings.allow_items_not_in_stock)
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if not data.cart_settings.show_price:
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product_info = None
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else:
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product_info = None
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return {
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'next_attribute': next_attribute,
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'valid_options_for_attributes': valid_options_for_attributes,
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'filtered_items_count': filtered_items_count,
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'filtered_items': filtered_items if filtered_items_count < 10 else [],
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'exact_match': exact_match,
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'product_info': product_info
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}
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def get_items_with_selected_attributes(item_code, selected_attributes):
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item_cache = ItemVariantsCacheManager(item_code)
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attribute_value_item_map = item_cache.get_attribute_value_item_map()
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items = []
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for attribute, value in selected_attributes.items():
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filtered_items = attribute_value_item_map.get((attribute, value), [])
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items.append(set(filtered_items))
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return set.intersection(*items)
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def get_items_by_fields(field_filters):
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meta = frappe.get_meta('Item')
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filters = []
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for fieldname, values in field_filters.items():
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if not values: continue
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_doctype = 'Item'
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_fieldname = fieldname
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df = meta.get_field(fieldname)
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if df.fieldtype == 'Table MultiSelect':
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child_doctype = df.options
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child_meta = frappe.get_meta(child_doctype)
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fields = child_meta.get("fields", { "fieldtype": "Link", "in_list_view": 1 })
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if fields:
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_doctype = child_doctype
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_fieldname = fields[0].fieldname
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if len(values) == 1:
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filters.append([_doctype, _fieldname, '=', values[0]])
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else:
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filters.append([_doctype, _fieldname, 'in', values])
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return get_items(filters)
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def get_items(filters=None, search=None):
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start = frappe.form_dict.start or 0
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products_settings = get_product_settings()
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page_length = products_settings.products_per_page
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filters = filters or []
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# convert to list of filters
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if isinstance(filters, dict):
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filters = [['Item', fieldname, '=', value] for fieldname, value in filters.items()]
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enabled_items_filter = get_conditions({ 'disabled': 0 }, 'and')
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show_in_website_condition = ''
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if products_settings.hide_variants:
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show_in_website_condition = get_conditions({'show_in_website': 1 }, 'and')
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else:
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show_in_website_condition = get_conditions([
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['show_in_website', '=', 1],
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['show_variant_in_website', '=', 1]
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], 'or')
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search_condition = ''
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if search:
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# Default fields to search from
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default_fields = {'name', 'item_name', 'description', 'item_group'}
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# Get meta search fields
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meta = frappe.get_meta("Item")
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meta_fields = set(meta.get_search_fields())
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# Join the meta fields and default fields set
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search_fields = default_fields.union(meta_fields)
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try:
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if frappe.db.count('Item', cache=True) > 50000:
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search_fields.remove('description')
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except KeyError:
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pass
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# Build or filters for query
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search = '%{}%'.format(search)
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or_filters = [[field, 'like', search] for field in search_fields]
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search_condition = get_conditions(or_filters, 'or')
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filter_condition = get_conditions(filters, 'and')
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where_conditions = ' and '.join(
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[condition for condition in [enabled_items_filter, show_in_website_condition, \
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search_condition, filter_condition] if condition]
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)
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left_joins = []
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for f in filters:
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if len(f) == 4 and f[0] != 'Item':
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left_joins.append(f[0])
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left_join = ' '.join(['LEFT JOIN `tab{0}` on (`tab{0}`.parent = `tabItem`.name)'.format(l) for l in left_joins])
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results = frappe.db.sql('''
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SELECT
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`tabItem`.`name`, `tabItem`.`item_name`,
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`tabItem`.`website_image`, `tabItem`.`image`,
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`tabItem`.`web_long_description`, `tabItem`.`description`,
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`tabItem`.`route`
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FROM
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`tabItem`
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{left_join}
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WHERE
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{where_conditions}
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GROUP BY
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`tabItem`.`name`
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ORDER BY
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`tabItem`.`weightage` DESC
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LIMIT
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{page_length}
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OFFSET
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{start}
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'''.format(
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where_conditions=where_conditions,
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start=start,
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page_length=page_length,
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left_join=left_join
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)
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, as_dict=1)
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for r in results:
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r.description = r.web_long_description or r.description
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r.image = r.website_image or r.image
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return results
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def get_conditions(filter_list, and_or='and'):
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from frappe.model.db_query import DatabaseQuery
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if not filter_list:
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return ''
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conditions = []
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DatabaseQuery('Item').build_filter_conditions(filter_list, conditions, ignore_permissions=True)
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join_by = ' {0} '.format(and_or)
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return '(' + join_by.join(conditions) + ')'
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# utilities
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def get_item_attributes(item_code):
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attributes = frappe.db.get_all('Item Variant Attribute',
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fields=['attribute'],
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filters={
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'parenttype': 'Item',
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'parent': item_code
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},
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order_by='idx asc'
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)
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optional_attributes = ItemVariantsCacheManager(item_code).get_optional_attributes()
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for a in attributes:
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if a.attribute in optional_attributes:
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a.optional = True
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return attributes
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def get_html_for_items(items):
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html = []
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for item in items:
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html.append(frappe.render_template('erpnext/www/all-products/item_row.html', {
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'item': item
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}))
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return html
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def get_product_settings():
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doc = frappe.get_cached_doc('Products Settings')
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doc.products_per_page = doc.products_per_page or 20
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return doc
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