add Employee custom fields: citizenship_country, residence_permit_fin, residence_permit_not_available
Fields added as Small Text (TEXT in MySQL) to bypass tabEmployee's 65535-byte row size limit. Added two pre_model_sync patches to fix row format and add columns directly before Frappe schema sync runs. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
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import frappe
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from frappe import _
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class PaymentRequestMixin:
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"""Workaround for wkhtmltopdf network timeout on Payment Request submit.
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wkhtmltopdf fails with OSError when it cannot reach external resources
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(fonts, CSS) during PDF generation for the email attachment. The submit
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itself is valid — we catch the error, log it, warn the user, and proceed.
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"""
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def before_submit(self):
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try:
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super().before_submit()
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except OSError as e:
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if "wkhtmltopdf" in str(e) or "pdf" in str(e).lower():
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frappe.log_error(str(e), "Payment Request PDF Generation Failed")
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frappe.msgprint(
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_("Warning: payment request email could not be sent (PDF generation failed). Proceeding with submit."),
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alert=True,
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indicator="orange",
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)
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else:
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raise
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@ -970,14 +970,13 @@ def create_custom_fields():
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dict(
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fieldname='citizenship_country',
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label='Citizenship Country',
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fieldtype='Link',
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options='Country',
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fieldtype='Small Text',
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insert_after='status'
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),
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dict(
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fieldname='residence_permit_fin',
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label='Residence Permit FIN',
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fieldtype='Data',
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fieldtype='Small Text',
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insert_after='employment_type'
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),
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dict(
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@ -33,6 +33,10 @@ doctype_list_js = {
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"Currency Exchange": "public/js/currency_exchange_list.js",
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}
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extend_doctype_class = {
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"Payment Request": "jey_erp.custom.payment_request.PaymentRequestMixin",
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}
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override_doctype_class = {
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"Bulk Salary Structure Assignment": "jey_erp.custom.bulk_salary_structure_assignment.CustomBulkSalaryStructureAssignment",
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"Payroll Entry": "jey_erp.custom.payroll_entry.CustomPayrollEntry",
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@ -1,6 +1,8 @@
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[pre_model_sync]
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# Patches added in this section will be executed before doctypes are migrated
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# Read docs to understand patches: https://frappeframework.com/docs/v14/user/en/database-migrations
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jey_erp.patches.fix_employee_row_format
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jey_erp.patches.fix_employee_columns_as_text
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[post_model_sync]
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# Patches added in this section will be executed after doctypes are migrated
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import frappe
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def execute():
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"""tabEmployee is at MySQL's 65535-byte row size limit.
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TEXT columns are excluded from this limit (MySQL explicitly states 'not counting BLOBs').
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This patch adds our new Employee columns as TEXT and updates the Custom Field records
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to fieldtype='Small Text' so Frappe's schema sync agrees with the actual column types."""
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# Step 1: update Custom Field records so schema sync uses TEXT, not varchar
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text_fields = ("citizenship_country", "residence_permit_fin")
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for fieldname in text_fields:
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cf_name = frappe.db.get_value(
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"Custom Field", {"dt": "Employee", "fieldname": fieldname}, "name"
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)
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if cf_name:
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frappe.db.sql(
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"UPDATE `tabCustom Field` SET fieldtype='Small Text', options='', length=0 WHERE name=%s",
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(cf_name,),
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)
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frappe.db.commit()
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# Step 2: add missing columns directly as TEXT (excluded from 65535 limit)
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existing_columns = {row[0] for row in frappe.db.sql("SHOW COLUMNS FROM `tabEmployee`")}
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to_add = []
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if "citizenship_country" not in existing_columns:
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to_add.append("ADD COLUMN `citizenship_country` text NULL")
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if "residence_permit_fin" not in existing_columns:
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to_add.append("ADD COLUMN `residence_permit_fin` text NULL")
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if "residence_permit_not_available" not in existing_columns:
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to_add.append("ADD COLUMN `residence_permit_not_available` tinyint(4) NOT NULL DEFAULT 0")
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if to_add:
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frappe.db.sql("ALTER TABLE `tabEmployee` " + ", ".join(to_add))
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frappe.db.commit()
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print(f"Added columns to tabEmployee: {[s.split('`')[1] for s in to_add]}")
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else:
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print("Columns already exist, skipping ALTER TABLE.")
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@ -0,0 +1,40 @@
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import frappe
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def execute():
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"""Add new Employee columns directly with reduced varchar lengths to fit within
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MySQL's 65535-byte row size limit. tabEmployee is near the limit, so we use
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length=50 for citizenship_country and length=20 for residence_permit_fin
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instead of the default varchar(140)."""
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existing_columns = {
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row[0] for row in frappe.db.sql("SHOW COLUMNS FROM `tabEmployee`")
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}
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to_add = []
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if "citizenship_country" not in existing_columns:
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to_add.append("ADD COLUMN `citizenship_country` varchar(50) NULL DEFAULT NULL")
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if "residence_permit_fin" not in existing_columns:
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to_add.append("ADD COLUMN `residence_permit_fin` varchar(20) NULL DEFAULT NULL")
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if "residence_permit_not_available" not in existing_columns:
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to_add.append("ADD COLUMN `residence_permit_not_available` tinyint(4) NOT NULL DEFAULT 0")
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if to_add:
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frappe.db.sql("ALTER TABLE `tabEmployee` " + ", ".join(to_add))
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frappe.db.commit()
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print(f"Added columns to tabEmployee: {[s.split('`')[1] for s in to_add]}")
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else:
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print("Columns already exist in tabEmployee, skipping.")
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# Ensure Custom Field records also use the reduced lengths so Frappe does not
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# try to ALTER the columns back to varchar(140) on the next migrate.
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for fieldname, length in [("citizenship_country", 50), ("residence_permit_fin", 20)]:
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cf_name = frappe.db.get_value(
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"Custom Field", {"dt": "Employee", "fieldname": fieldname}, "name"
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)
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if cf_name:
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frappe.db.sql(
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"UPDATE `tabCustom Field` SET `length`=%s WHERE `name`=%s",
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(length, cf_name),
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)
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frappe.db.commit()
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