feat: respect set_query filters in Account selection dialog

Extract link filters from the source control's set_query/df.filters
and pass them to the backend. This ensures that field-specific
constraints (e.g. root_type=Expense, company filters) are respected
when selecting accounts through the custom dialog.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

selections/api.py

@@ -634,7 +634,7 @@ def add_items_to_document(doctype, docname, items):
 # ────────────────────────────────────────────────────────────────────────────
 
 @frappe.whitelist()
-def get_accounts_for_selection(filters=None, start=0, page_length=50, custom_filters=None):
+def get_accounts_for_selection(filters=None, start=0, page_length=50, custom_filters=None, link_filters=None):
 	"""
 	Получить список счетов для формы подбора
 
@@ -643,6 +643,7 @@ def get_accounts_for_selection(filters=None, start=0, page_length=50, custom_fil
 		start (int): Смещение для пагинации
 		page_length (int): Количество записей на странице
 		custom_filters (list): Произвольные фильтры [{field, operator, value}]
+		link_filters (dict): Фильтры из set_query контрола-источника
 
 	Returns:
 		dict: {items: [...], total_count: int}
@@ -651,6 +652,7 @@ def get_accounts_for_selection(filters=None, start=0, page_length=50, custom_fil
 
 	filters = frappe.parse_json(filters) if isinstance(filters, str) else (filters or {})
 	custom_filters = frappe.parse_json(custom_filters) if isinstance(custom_filters, str) else (custom_filters or [])
+	link_filters = frappe.parse_json(link_filters) if isinstance(link_filters, str) else (link_filters or {})
 	start = cint(start)
 	page_length = cint(page_length)
 
@@ -673,6 +675,10 @@ def get_accounts_for_selection(filters=None, start=0, page_length=50, custom_fil
 		.where(Account.is_group == 0)
 	)
 
+	# Фильтры из set_query контрола (root_type, account_type, company и т.д.)
+	if link_filters:
+		query = _apply_link_filters(query, Account, link_filters)
+
 	# Поиск по номеру и названию
 	search_term = cstr(filters.get('search_term', '')).strip()
 	if search_term:
@@ -702,6 +708,8 @@ def get_accounts_for_selection(filters=None, start=0, page_length=50, custom_fil
 		.where(Account.disabled == 0)
 		.where(Account.is_group == 0)
 	)
+	if link_filters:
+		count_query = _apply_link_filters(count_query, Account, link_filters)
 	if search_term:
 		term = f"%{search_term}%"
 		count_query = count_query.where(
@@ -744,6 +752,52 @@ def get_accounts_for_selection(filters=None, start=0, page_length=50, custom_fil
 	}
 
 
+def _apply_link_filters(query, Account, link_filters):
+	"""
+	Применить фильтры из set_query контрола-источника.
+
+	Формат Frappe link_filters:
+		{field: value}                       — равенство
+		{field: ['in', [v1, v2]]}            — оператор
+		{field: ['like', '%text%']}           — like
+	"""
+	account_meta = frappe.get_meta('Account')
+	valid_fields = {f.fieldname for f in account_meta.fields}
+	valid_fields.update({'name', 'owner', 'creation', 'modified'})
+
+	for field, value in link_filters.items():
+		if field not in valid_fields:
+			continue
+		col = Account[field]
+
+		if isinstance(value, (list, tuple)) and len(value) == 2:
+			op, val = value[0].lower(), value[1]
+			if op == 'in' and isinstance(val, (list, tuple)):
+				query = query.where(col.isin(val))
+			elif op == 'not in' and isinstance(val, (list, tuple)):
+				query = query.where(col.notin(val))
+			elif op == 'like':
+				query = query.where(col.like(val))
+			elif op == 'not like':
+				query = query.where(~col.like(val))
+			elif op == '!=':
+				query = query.where(col != val)
+			elif op == '>':
+				query = query.where(col > val)
+			elif op == '<':
+				query = query.where(col < val)
+			elif op == '>=':
+				query = query.where(col >= val)
+			elif op == '<=':
+				query = query.where(col <= val)
+			else:
+				query = query.where(col == val)
+		else:
+			query = query.where(col == value)
+
+	return query
+
+
 def _apply_account_custom_filters(query, Account, custom_filters):
 	"""
 	Применить произвольные фильтры по полям DocType Account

selections/public/js/account_selection_dialog.js

@@ -15,10 +15,23 @@ class AccountSelectionDialog {
 		this.custom_filters = [];
 		this._account_fields = [];
 		this.accounts_data = [];
+		this.link_filters = this._extract_link_filters();
 
 		this.make_dialog();
 	}
 
+	// Извлечь фильтры из set_query / df.filters контрола-источника
+	_extract_link_filters() {
+		const target = this.link_selector_opts.target;
+		if (!target) return {};
+
+		const args = {};
+		if (target.set_custom_query) {
+			try { target.set_custom_query(args); } catch (e) { /* ignore */ }
+		}
+		return args.filters || {};
+	}
+
 	make_dialog() {
 		this.dialog = new frappe.ui.Dialog({
 			title: __('Select Account'),
@@ -276,6 +289,7 @@ class AccountSelectionDialog {
 				custom_filters: this.custom_filters.map(f => ({
 					field: f.field, operator: f.operator, value: f.value,
 				})),
+				link_filters: this.link_filters,
 			},
 			async: true,
 			callback: (r) => {