impertio-studio/frappe_claude_skill_package/frappe-core-permissions

Need to control access?
├── Who can Create/Read/Write/Delete a DocType? → Role Permissions
├── Which specific records can a user see? → User Permissions
├── Which fields should be hidden? → Perm Levels (permlevel 1+)
├── Which fields show masked values? → Data Masking [v16+]
├── Custom runtime deny logic? → has_permission hook
├── Filter list queries dynamically? → permission_query_conditions hook
└── Share one document with one user? → frappe.share
 
Checking permissions in code?
├── Before action → frappe.has_permission() or doc.has_permission()
├── Raise on denial → doc.check_permission() or throw=True
├── System bypass → doc.flags.ignore_permissions = True (ALWAYS document why)
└── List query → ALWAYS use frappe.get_list() for user-facing data

# DocType-level
frappe.has_permission("Sales Order", "write")
# Document-level (by name or object)
frappe.has_permission("Sales Order", "write", "SO-00001")
frappe.has_permission("Sales Order", "write", doc=doc)
# For specific user
frappe.has_permission("Sales Order", "read", user="john@example.com")
# Throw on denial
frappe.has_permission("Sales Order", "delete", throw=True)
# Debug mode — prints evaluation steps
frappe.has_permission("Sales Order", "read", debug=True)
print(frappe.local.permission_debug_log)

doc = frappe.get_doc("Sales Order", "SO-00001")
# Returns bool
if doc.has_permission("write"):
    doc.status = "Approved"
    doc.save()
# Raises frappe.PermissionError if denied
doc.check_permission("write")

from frappe.permissions import get_doc_permissions
perms = get_doc_permissions(doc)
# {'read': 1, 'write': 1, 'create': 0, 'delete': 0, ...}
perms = get_doc_permissions(doc, user="john@example.com")

from frappe.permissions import add_user_permission, remove_user_permission
# Restrict user to one company
add_user_permission(
    doctype="Company",
    name="My Company",
    user="john@example.com",
    is_default=1,            # auto-fill in new documents
    applicable_for="Sales Order"  # only for this DocType (optional)
)
# Remove restriction
remove_user_permission("Company", "My Company", "john@example.com")
# Query current restrictions
from frappe.permissions import get_user_permissions
perms = get_user_permissions("john@example.com")
# {"Company": [{"doc": "My Company", "is_default": 1}], ...}

from frappe.share import add as add_share, remove as remove_share
add_share("Sales Order", "SO-00001", "jane@example.com",
          read=1, write=1, share=0, notify=1)
remove_share("Sales Order", "SO-00001", "jane@example.com")
# Share with everyone
add_share("Sales Order", "SO-00001", everyone=1, read=1)

{
  "fields": [
    {"fieldname": "employee_name", "permlevel": 0},
    {"fieldname": "salary",        "permlevel": 1}
  ],
  "permissions": [
    {"role": "Employee",   "permlevel": 0, "read": 1},
    {"role": "HR Manager", "permlevel": 0, "read": 1, "write": 1},
    {"role": "HR Manager", "permlevel": 1, "read": 1, "write": 1}
  ]
}

{
  "fieldname": "phone_number", "fieldtype": "Data", "mask": 1
}

{"role": "HR Manager", "permlevel": 0, "read": 1, "mask": 1}

# hooks.py
has_permission = {
    "Sales Order": "myapp.permissions.check_order_permission"
}

# myapp/permissions.py
def check_order_permission(doc, ptype, user):
    if ptype == "write" and doc.docstatus == 2:
        if "Sales Manager" not in frappe.get_roles(user):
            return False
    return None  # ALWAYS return None by default

# hooks.py
permission_query_conditions = {
    "Customer": "myapp.permissions.customer_query"
}

def customer_query(user):
    if not user:
        user = frappe.session.user
    if "Sales Manager" in frappe.get_roles(user):
        return ""
    return f"`tabCustomer`.owner = {frappe.db.escape(user)}"

{"role": "Sales User", "read": 1, "write": 1, "create": 1, "if_owner": 1}

@frappe.whitelist()
def sensitive_action():
    frappe.only_for(["Manager", "Administrator"])
    # Only reaches here if user has one of these roles

# On document — ALWAYS add a comment explaining the reason
doc.flags.ignore_permissions = True
doc.save()
# On method call
doc.save(ignore_permissions=True)
doc.insert(ignore_permissions=True)