acción de servidor para crear mandatos bancarios en lote

account_banking_mandate_batch/data/server_action.xml

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+<?xml version="1.0" encoding="utf-8" ?>
+<odoo>
+    <record id="action_create_sepa_mandates" model="ir.actions.server">
+        <field name="name">Create SEPA mandates</field>
+        <field name="model_id" ref="base.model_res_partner" />
+        <field name="binding_model_id" ref="base.model_res_partner" />
+        <field name="binding_view_types">list,form</field>
+        <field name="state">code</field>
+        <field name="code"><![CDATA[
+# Bulk-create and validate recurrent SEPA Core mandates for the selected
+# partners. Filter the contacts list (e.g. is_client = True), select all,
+# then run this action. One mandate per partner; partners that already have
+# a draft/valid mandate or no bank account are skipped.
+Mandate = env["account.banking.mandate"]
+today = datetime.date.today()
+
+created = 0
+no_bank = 0
+already = 0
+
+for partner in records:
+    bank = partner.bank_ids[:1]
+    if not bank:
+        no_bank += 1
+        continue
+    if Mandate.search_count([
+        ("partner_id", "=", partner.id),
+        ("state", "in", ("draft", "valid")),
+    ]):
+        already += 1
+        continue
+    mandate = Mandate.create({
+        "partner_bank_id": bank.id,
+        "format": "sepa",
+        "type": "recurrent",
+        "scheme": "CORE",
+        "signature_date": today,
+    })
+    mandate.validate()
+    created += 1
+
+message = (
+    "SEPA mandates created: %s\n"
+    "Already had a mandate: %s\n"
+    "Skipped (no bank account): %s"
+) % (created, already, no_bank)
+
+action = {
+    "type": "ir.actions.client",
+    "tag": "display_notification",
+    "params": {
+        "title": "SEPA mandates",
+        "message": message,
+        "type": "success" if created else "warning",
+        "sticky": False,
+    },
+}
+]]></field>
+    </record>
+</odoo>