Replace mx-cfdi-post-code with customer address

CHANGELOG.md

@@ -10,6 +10,10 @@ The format is based on [Keep a Changelog](http://keepachangelog.com/) and this p
 
 - `br-nfse-v1`: added initial Brazil NFS-e addon
 
+### Changed
+
+- `mx` – deprecated the `mx-cfdi-post-code` extension in favor of the customer address post code.
+
 ## [v0.203.0]
 
 ### Added

addons/mx/cfdi/extensions.go

@@ -10,7 +10,6 @@ import (
 // invoices and cannot be determined automatically.
 const (
 	ExtKeyIssuePlace   cbc.Key = "mx-cfdi-issue-place"
-	ExtKeyPostCode     cbc.Key = "mx-cfdi-post-code"
 	ExtKeyFiscalRegime cbc.Key = "mx-cfdi-fiscal-regime"
 	ExtKeyUse          cbc.Key = "mx-cfdi-use"
 	ExtKeyProdServ     cbc.Key = "mx-cfdi-prod-serv"     // name from XML field: ClaveProdServ
@@ -116,23 +115,7 @@ var extensions = []*cbc.KeyDefinition{
 				Código postal de donde se emitió la factura. En CFDI se traduce a 'LugarExpedicion'.
 			`),
 		},
-		Pattern: "^[0-9]{5}$",
-	},
-	{
-		Key: ExtKeyPostCode,
-		Name: i18n.String{
-			i18n.EN: "Post Code",
-			i18n.ES: "Código Postal",
-		},
-		Desc: i18n.String{
-			i18n.EN: here.Doc(`
-				Post code of a supplier or customer to use instead of an address. Example: "01000".
-			`),
-			i18n.ES: here.Doc(`
-				Código postal de un emisor o receptor para usar en lugar de una dirección. Ejemplo: "01000".
-			`),
-		},
-		Pattern: "^[0-9]{5}$",
+		Pattern: PostCodePattern,
 	},
 	{
 		Key: ExtKeyTaxType,

addons/mx/cfdi/food_vouchers.go

@@ -19,12 +19,14 @@ const (
 const (
 	CURPPattern           = "^[A-Z][A,E,I,O,U,X][A-Z]{2}[0-9]{2}[0-1][0-9][0-3][0-9][M,H][A-Z]{2}[B,C,D,F,G,H,J,K,L,M,N,Ñ,P,Q,R,S,T,V,W,X,Y,Z]{3}[0-9,A-Z][0-9]$"
 	SocialSecurityPattern = "^[0-9]{11}$"
+	PostCodePattern       = "^[0-9]{5}$"
 )
 
 // Complement's Codes Regexps
 var (
 	CURPRegexp           = regexp.MustCompile(CURPPattern)
 	SocialSecurityRegexp = regexp.MustCompile(SocialSecurityPattern)
+	PostCodeRegexp       = regexp.MustCompile(PostCodePattern)
 )
 
 // FoodVouchers carries the data to produce a CFDI's "Complemento de

addons/mx/cfdi/invoice.go

@@ -92,14 +92,34 @@ func validateInvoiceCustomer(value any) error {
 		),
 		validation.Field(&obj.Ext,
 			validation.When(
-				obj.TaxID != nil && obj.TaxID.Country.In("MX"),
+				isMexican(obj),
 				tax.ExtensionsRequires(
-					ExtKeyPostCode,
 					ExtKeyFiscalRegime,
 					ExtKeyUse,
 				),
 			),
 		),
+		validation.Field(&obj.Addresses,
+			validation.When(
+				isMexican(obj),
+				validation.Required,
+				validation.Each(
+					validation.By(validateMexicanCustomerAddress),
+				),
+			),
+		),
+	)
+}
+
+func validateMexicanCustomerAddress(value any) error {
+	obj, _ := value.(*org.Address)
+	if obj == nil {
+		return nil
+	}
+	return validation.ValidateStruct(obj,
+		validation.Field(&obj.Code,
+			validation.Required,
+			validation.Match(PostCodeRegexp)),
 	)
 }
 
@@ -147,3 +167,10 @@ func validateInvoicePreceding(value interface{}) error {
 		),
 	)
 }
+
+func isMexican(party *org.Party) bool {
+	if party == nil || party.TaxID == nil {
+		return false
+	}
+	return party.TaxID.Country.In("MX")
+}

addons/mx/cfdi/invoice_test.go

@@ -31,7 +31,7 @@ func validInvoice() *bill.Invoice {
 		Supplier: &org.Party{
 			Name: "Test Supplier",
 			Ext: tax.Extensions{
-				cfdi.ExtKeyPostCode:     "21000",
+				"mx-cfdi-post-code":     "21000",
 				cfdi.ExtKeyFiscalRegime: "601",
 			},
 			TaxID: &tax.Identity{
@@ -42,7 +42,7 @@ func validInvoice() *bill.Invoice {
 		Customer: &org.Party{
 			Name: "Test Customer",
 			Ext: tax.Extensions{
-				cfdi.ExtKeyPostCode:     "65000",
+				"mx-cfdi-post-code":     "65000",
 				cfdi.ExtKeyFiscalRegime: "608",
 				cfdi.ExtKeyUse:          "G01",
 			},
@@ -91,7 +91,7 @@ func TestNormalizeInvoice(t *testing.T) {
 	t.Run("with supplier address code", func(t *testing.T) {
 		inv := validInvoice()
 		inv.Addons = tax.WithAddons(cfdi.V4)
-		delete(inv.Supplier.Ext, cfdi.ExtKeyPostCode)
+		delete(inv.Supplier.Ext, "mx-cfdi-post-code")
 		inv.Supplier.Addresses = append(inv.Supplier.Addresses,
 			&org.Address{
 				Locality: "Mexico",
@@ -116,6 +116,27 @@ func TestCustomerValidation(t *testing.T) {
 	assert.NoError(t, inv.Validate())
 }
 
+func TestCustomerAddressCodeValidation(t *testing.T) {
+	inv := validInvoice()
+	delete(inv.Customer.Ext, "mx-cfdi-post-code")
+	assertValidationError(t, inv, "customer: (addresses: cannot be blank.)")
+
+	inv.Customer.Addresses = []*org.Address{{}}
+	assertValidationError(t, inv, "customer: (addresses: (0: (code: cannot be blank.).).)")
+
+	inv.Customer.Addresses[0].Code = "ABC"
+	assertValidationError(t, inv, "customer: (addresses: (0: (code: must be in a valid format.).).)")
+
+	inv.Customer.Addresses[0].Code = "21000"
+	require.NoError(t, inv.Calculate())
+	require.NoError(t, inv.Validate())
+
+	inv.Customer.TaxID.Country = "US"
+	inv.Customer.Addresses = nil
+	require.NoError(t, inv.Calculate())
+	require.NoError(t, inv.Validate())
+}
+
 func TestLineValidation(t *testing.T) {
 	inv := validInvoice()
 
@@ -182,7 +203,7 @@ func TestUsoCFDIScenarioValidation(t *testing.T) {
 
 	inv.Customer.Ext = tax.Extensions{
 		cfdi.ExtKeyFiscalRegime: "601",
-		cfdi.ExtKeyPostCode:     "21000",
+		"mx-cfdi-post-code":     "21000",
 	}
 	assertValidationError(t, inv, "ext: (mx-cfdi-use: required.)")
 }

data/addons/mx-cfdi-v4.json

@@ -98,18 +98,6 @@
       },
       "pattern": "^[0-9]{5}$"
     },
-    {
-      "key": "mx-cfdi-post-code",
-      "name": {
-        "en": "Post Code",
-        "es": "Código Postal"
-      },
-      "desc": {
-        "en": "Post code of a supplier or customer to use instead of an address. Example: \"01000\".",
-        "es": "Código postal de un emisor o receptor para usar en lugar de una dirección. Ejemplo: \"01000\"."
-      },
-      "pattern": "^[0-9]{5}$"
-    },
     {
       "key": "mx-cfdi-tax-type",
       "name": {

regimes/mx/README.md

@@ -18,7 +18,7 @@ Here's how to include these codes in your GOBL documents:
 
 ### Issue Place (`LugarExpedicion`)
 
-Specify the postal code where the invoice was issued using the `mx-cfdi-issue-place` extension under the `tax` field of the invoice.
+Specify the postal code where the invoice was issued using the `mx-cfdi-issue-place` extension under the `tax` field of the invoice. If the extension is not provided, GOBL will set it automatically to the supplier's address post code.
 
 #### Example
 
@@ -65,7 +65,7 @@ The following example will associate the supplier with the `601` fiscal regime c
 
 ### `DomicilioFiscalReceptor` - Receipt's Tax Address
 
-In CFDI, `DomicilioFiscalReceptor` is a mandatory field that specifies the postal code of the recepient's tax address. In a GOBL Invoice, you can provide this value setting the `mx-cfdi-post-code` extension of the invoice's customer.
+In CFDI, `DomicilioFiscalReceptor` is a mandatory field that specifies the postal code of the recepient's tax address. In a GOBL Invoice, you can provide this value setting the customer's address post code.
 
 #### Example
 
@@ -81,11 +81,11 @@ In CFDI, `DomicilioFiscalReceptor` is a mandatory field that specifies the posta
       "country": "MX",
       "code": "URE180429TM6"
     },
-    "ext": {
-      "mx-cfdi-fiscal-regime": "601",
-      "mx-cfdi-use": "G01",
-      "mx-cfdi-post-code": "65000"
-    }
+    "addresses": [
+      {
+        "code": "65000"
+      }
+    ]
   }
 
   // [...]
@@ -115,9 +115,7 @@ The following GOBL maps to the `G03` (Gastos en general) value of the `UsoCFDI`
       "code": "URE180429TM6"
     },
     "ext": {
-      "mx-cfdi-fiscal-regime": "601",
       "mx-cfdi-use": "G01",
-      "mx-cfdi-post-code": "65000"
     }
   }
 

regimes/mx/examples/out/credit-note.json

@@ -4,7 +4,7 @@
 		"uuid": "8a51fd30-2a27-11ee-be56-0242ac120002",
 		"dig": {
 			"alg": "sha256",
-			"val": "d68dc80f2f6f0c4ac962961f2c367455b8b529ab67b81e8d5bc6a7f2972a5ae2"
+			"val": "cc154d9d8a558a6059fc50abbceab5ea88c32f8895c37a87738960fb8c626ef9"
 		}
 	},
 	"doc": {
@@ -64,9 +64,13 @@
 				"country": "MX",
 				"code": "URE180429TM6"
 			},
+			"addresses": [
+				{
+					"code": "65000"
+				}
+			],
 			"ext": {
 				"mx-cfdi-fiscal-regime": "624",
-				"mx-cfdi-post-code": "65000",
 				"mx-cfdi-use": "G01"
 			}
 		},

regimes/mx/examples/out/food-vouchers.json

@@ -4,7 +4,7 @@
 		"uuid": "8a51fd30-2a27-11ee-be56-0242ac120002",
 		"dig": {
 			"alg": "sha256",
-			"val": "ea065afce50358819fe68587f573dbad7c0d6ea1626d075b91faa924ebeb07db"
+			"val": "24c15ebc61934602b26715e5a0231761475ef5239084daee7eb2f021acbdc78b"
 		}
 	},
 	"doc": {
@@ -32,8 +32,7 @@
 				"code": "EKU9003173C9"
 			},
 			"ext": {
-				"mx-cfdi-fiscal-regime": "601",
-				"mx-cfdi-post-code": "21000"
+				"mx-cfdi-fiscal-regime": "601"
 			}
 		},
 		"customer": {
@@ -42,9 +41,13 @@
 				"country": "MX",
 				"code": "URE180429TM6"
 			},
+			"addresses": [
+				{
+					"code": "86991"
+				}
+			],
 			"ext": {
 				"mx-cfdi-fiscal-regime": "601",
-				"mx-cfdi-post-code": "86991",
 				"mx-cfdi-use": "G01"
 			}
 		},

regimes/mx/examples/out/fuel-account-balance.json

@@ -4,7 +4,7 @@
 		"uuid": "8a51fd30-2a27-11ee-be56-0242ac120002",
 		"dig": {
 			"alg": "sha256",
-			"val": "d6590300e024e94dd50400b2c016c574222ca1f5259e3da6132e66ebb9d514c9"
+			"val": "a0b87156fa951dd596f01301595f2fd83eac97fb4395558ea77df63e4b7d0acd"
 		}
 	},
 	"doc": {
@@ -32,8 +32,7 @@
 				"code": "EKU9003173C9"
 			},
 			"ext": {
-				"mx-cfdi-fiscal-regime": "601",
-				"mx-cfdi-post-code": "21000"
+				"mx-cfdi-fiscal-regime": "601"
 			}
 		},
 		"customer": {
@@ -42,9 +41,13 @@
 				"country": "MX",
 				"code": "URE180429TM6"
 			},
+			"addresses": [
+				{
+					"code": "86991"
+				}
+			],
 			"ext": {
 				"mx-cfdi-fiscal-regime": "601",
-				"mx-cfdi-post-code": "86991",
 				"mx-cfdi-use": "G01"
 			}
 		},

regimes/mx/examples/out/invoice.json

@@ -4,7 +4,7 @@
 		"uuid": "8a51fd30-2a27-11ee-be56-0242ac120002",
 		"dig": {
 			"alg": "sha256",
-			"val": "90c21ff26c2935d51911d7356689ceb7f6481f01449d7681e09c13904d6d1feb"
+			"val": "d4bfeb7dd784a992f7661fa4dd8f7836c7ea4f1ace86f61966a4568819c7e69c"
 		}
 	},
 	"doc": {
@@ -41,9 +41,13 @@
 				"country": "MX",
 				"code": "URE180429TM6"
 			},
+			"addresses": [
+				{
+					"code": "86991"
+				}
+			],
 			"ext": {
 				"mx-cfdi-fiscal-regime": "601",
-				"mx-cfdi-post-code": "86991",
 				"mx-cfdi-use": "G01"
 			}
 		},

regimes/mx/examples/out/prepaid-invoice.json

@@ -4,7 +4,7 @@
 		"uuid": "8a51fd30-2a27-11ee-be56-0242ac120002",
 		"dig": {
 			"alg": "sha256",
-			"val": "98314830e2c99c01ae84557742d34583e07454f461d3bd585a3f70925d315fdf"
+			"val": "0e3602bdd9779e7bfa7ac2937dd3072ab16a813db6938d2bcda61f0a4136e544"
 		}
 	},
 	"doc": {
@@ -32,8 +32,7 @@
 				"code": "EKU9003173C9"
 			},
 			"ext": {
-				"mx-cfdi-fiscal-regime": "601",
-				"mx-cfdi-post-code": "21000"
+				"mx-cfdi-fiscal-regime": "601"
 			}
 		},
 		"customer": {
@@ -42,9 +41,13 @@
 				"country": "MX",
 				"code": "URE180429TM6"
 			},
+			"addresses": [
+				{
+					"code": "86991"
+				}
+			],
 			"ext": {
 				"mx-cfdi-fiscal-regime": "601",
-				"mx-cfdi-post-code": "86991",
 				"mx-cfdi-use": "G01"
 			}
 		},