713: support offline entities spec v2024.1.0 via opt-in setting

pyxform/constants.py

@@ -114,7 +114,8 @@
 
 # The ODK entities spec version that generated forms comply to
 ENTITIES_CREATE_VERSION = "2022.1.0"
-CURRENT_ENTITIES_VERSION = "2023.1.0"
+ENTITIES_UPDATE_VERSION = "2023.1.0"
+ENTITIES_OFFLINE_VERSION = "2024.1.0"
 ENTITY = "entity"
 ENTITY_FEATURES = "entity_features"
 ENTITIES_RESERVED_PREFIX = "__"
@@ -126,6 +127,7 @@ class EntityColumns(StrEnum):
     CREATE_IF = "create_if"
     UPDATE_IF = "update_if"
     LABEL = "label"
+    OFFLINE = "offline"
 
 
 DEPRECATED_DEVICE_ID_METADATA_FIELDS = ["subscriberid", "simserial"]

pyxform/entities/entities_parsing.py

@@ -1,6 +1,7 @@
 from typing import Any
 
 from pyxform import constants as const
+from pyxform.aliases import yes_no
 from pyxform.errors import PyXFormError
 from pyxform.xlsparseutils import find_sheet_misspellings, is_valid_xml_tag
 
@@ -28,6 +29,7 @@ def get_entity_declaration(
     create_condition = entity_row.get(EC.CREATE_IF, None)
     update_condition = entity_row.get(EC.UPDATE_IF, None)
     entity_label = entity_row.get(EC.LABEL, None)
+    offline = yes_no.get(entity_row.get(EC.OFFLINE, None), None)
 
     if update_condition and not entity_id:
         raise PyXFormError(
@@ -53,6 +55,7 @@ def get_entity_declaration(
             EC.CREATE_IF: create_condition,
             EC.UPDATE_IF: update_condition,
             EC.LABEL: entity_label,
+            EC.OFFLINE: offline,
         },
     }
 

pyxform/entities/entity_declaration.py

@@ -24,23 +24,28 @@ class EntityDeclaration(SurveyElement):
     """
 
     def xml_instance(self, **kwargs):
+        parameters = self.get(const.PARAMETERS, {})
+
         attributes = {
-            EC.DATASET.value: self.get(const.PARAMETERS, {}).get(EC.DATASET, ""),
+            EC.DATASET.value: parameters.get(EC.DATASET, ""),
             "id": "",
         }
 
-        entity_id_expression = self.get(const.PARAMETERS, {}).get(EC.ENTITY_ID, None)
-        create_condition = self.get(const.PARAMETERS, {}).get(EC.CREATE_IF, None)
-        update_condition = self.get(const.PARAMETERS, {}).get(EC.UPDATE_IF, None)
+        entity_id_expression = parameters.get(EC.ENTITY_ID, None)
+        create_condition = parameters.get(EC.CREATE_IF, None)
+        update_condition = parameters.get(EC.UPDATE_IF, None)
 
         if entity_id_expression:
             attributes["update"] = "1"
             attributes["baseVersion"] = ""
+            if parameters.get(EC.OFFLINE, None):
+                attributes["trunkVersion"] = ""
+                attributes["branchId"] = ""
 
         if create_condition or (not update_condition and not entity_id_expression):
             attributes["create"] = "1"
 
-        if self.get(const.PARAMETERS, {}).get(EC.LABEL, None):
+        if parameters.get(EC.LABEL, None):
             return node(const.ENTITY, node(const.LABEL), **attributes)
         else:
             return node(const.ENTITY, **attributes)
@@ -50,10 +55,11 @@ def xml_bindings(self):
         See the class comment for an explanation of the logic for generating bindings.
         """
         survey = self.get_root()
-        entity_id_expression = self.get(const.PARAMETERS, {}).get(EC.ENTITY_ID, None)
-        create_condition = self.get(const.PARAMETERS, {}).get(EC.CREATE_IF, None)
-        update_condition = self.get(const.PARAMETERS, {}).get(EC.UPDATE_IF, None)
-        label_expression = self.get(const.PARAMETERS, {}).get(EC.LABEL, None)
+        parameters = self.get(const.PARAMETERS, {})
+        entity_id_expression = parameters.get(EC.ENTITY_ID, None)
+        create_condition = parameters.get(EC.CREATE_IF, None)
+        update_condition = parameters.get(EC.UPDATE_IF, None)
+        label_expression = parameters.get(EC.LABEL, None)
 
         bind_nodes = []
 
@@ -69,11 +75,20 @@ def xml_bindings(self):
             bind_nodes.append(self._get_bind_node(survey, update_condition, "/@update"))
 
         if entity_id_expression:
-            dataset_name = self.get(const.PARAMETERS, {}).get(EC.DATASET, "")
-            base_version_expression = f"instance('{dataset_name}')/root/item[name={entity_id_expression}]/__version"
+            dataset_name = parameters.get(EC.DATASET, "")
+            entity = f"instance('{dataset_name}')/root/item[name={entity_id_expression}]"
             bind_nodes.append(
-                self._get_bind_node(survey, base_version_expression, "/@baseVersion")
+                self._get_bind_node(survey, f"{entity}/__version", "/@baseVersion")
             )
+            if parameters.get(EC.OFFLINE, None):
+                bind_nodes.append(
+                    self._get_bind_node(
+                        survey, f"{entity}/__trunkVersion", "/@trunkVersion"
+                    )
+                )
+                bind_nodes.append(
+                    self._get_bind_node(survey, f"{entity}/__branchId", "/@branchId")
+                )
 
         if label_expression:
             bind_nodes.append(self._get_bind_node(survey, label_expression, "/label"))

pyxform/survey.py

@@ -586,9 +586,13 @@ def xml_model(self):
 
         entity_features = getattr(self, constants.ENTITY_FEATURES, [])
         if len(entity_features) > 0:
-            if "update" in entity_features:
+            if "offline" in entity_features:
                 model_kwargs["entities:entities-version"] = (
-                    constants.CURRENT_ENTITIES_VERSION
+                    constants.ENTITIES_OFFLINE_VERSION
+                )
+            elif "update" in entity_features:
+                model_kwargs["entities:entities-version"] = (
+                    constants.ENTITIES_UPDATE_VERSION
                 )
             else:
                 model_kwargs["entities:entities-version"] = (

pyxform/xls2json.py

@@ -1538,10 +1538,14 @@ def workbook_to_json(
 
     if len(entity_declaration) > 0:
         json_dict[constants.ENTITY_FEATURES] = ["create"]
+        entity_parameters = entity_declaration.get(constants.PARAMETERS, {})
 
-        if entity_declaration.get("parameters", {}).get("entity_id", None):
+        if entity_parameters.get(constants.EntityColumns.ENTITY_ID, None):
             json_dict[constants.ENTITY_FEATURES].append("update")
 
+        if entity_parameters.get(constants.EntityColumns.OFFLINE, None):
+            json_dict[constants.ENTITY_FEATURES].append("offline")
+
         meta_children.append(entity_declaration)
 
     if len(meta_children) > 0:

tests/test_entities_create.py

@@ -1,3 +1,5 @@
+from pyxform import constants as co
+
 from tests.pyxform_test_case import PyxformTestCase
 
 
@@ -438,3 +440,43 @@ def test_entities_columns__multiple_unexpected(self):
                 "'why'",
             ],
         )
+
+    def test_entities_offline_opt_in__yes(self):
+        """Should find offline spec version, if opted-in."""
+        self.assertPyxformXform(
+            md="""
+            | survey   |
+            |          | type | name | label |
+            |          | text | a    | A     |
+            | entities |
+            |          | dataset | label | offline |
+            |          | trees   | a     | yes     |
+            """,
+            xml__xpath_match=[
+                f"""
+                  /h:html/h:head/x:model[
+                    @entities:entities-version = "{co.ENTITIES_OFFLINE_VERSION}"
+                  ]
+                """,
+            ],
+        )
+
+    def test_entities_offline_opt_in__no(self):
+        """Should find create spec version, if not opted-in."""
+        self.assertPyxformXform(
+            md="""
+            | survey   |
+            |          | type      | name  | label |
+            |          | text      | a     | A     |
+            | entities |
+            |          | dataset   | label | offline |
+            |          | trees     | a     | no      |
+            """,
+            xml__xpath_match=[
+                f"""
+                  /h:html/h:head/x:model[
+                    @entities:entities-version = "{co.ENTITIES_CREATE_VERSION}"
+                  ]
+                """,
+            ],
+        )

tests/test_entities_update.py

@@ -1,3 +1,5 @@
+from pyxform import constants as co
+
 from tests.pyxform_test_case import PyxformTestCase
 
 
@@ -174,3 +176,95 @@ def test_save_to_with_entity_id__puts_save_tos_on_bind(self):
                 '/h:html/h:head/x:model/x:bind[@nodeset = "/data/a" and @entities:saveto = "foo"]'
             ],
         )
+
+    def test_entities_offline_opt_in__yes(self):
+        """Should find offline spec version and trunk/branch props/binds, if opted-in."""
+        self.assertPyxformXform(
+            md="""
+            | survey   |
+            |          | type | name | label   |
+            |          | text | id   | Tree id |
+            |          | text | q1   | Q1      |
+            | entities |
+            |          | dataset | entity_id | offline |
+            |          | trees   | ${id}     | yes     |
+            """,
+            xml__xpath_match=[
+                f"""
+                  /h:html/h:head/x:model[
+                    @entities:entities-version = "{co.ENTITIES_OFFLINE_VERSION}"
+                  ]
+                """,
+                """
+                  /h:html/h:head/x:model/x:instance/x:test_name/x:meta/x:entity[
+                    @trunkVersion = ''
+                    and @branchId = ''
+                  ]
+                """,
+                """
+                  /h:html/h:head/x:model/x:bind[
+                    @nodeset = '/test_name/meta/entity/@trunkVersion'
+                    and @calculate = "instance('trees')/root/item[name= /test_name/id ]/__trunkVersion"
+                    and @type = 'string'
+                    and @readonly = 'true()'
+                  ]
+                """,
+                """
+                  /h:html/h:head/x:model/x:bind[
+                    @nodeset = '/test_name/meta/entity/@branchId'
+                    and @calculate = "instance('trees')/root/item[name= /test_name/id ]/__branchId"
+                    and @type = 'string'
+                    and @readonly = 'true()'
+                  ]
+                """,
+            ],
+        )
+
+    def test_entities_offline_opt_in__no(self):
+        """Should not find update spec version and trunk/branch props/binds, if not opted-in."""
+        cases = (
+            """
+            | entities |
+            |          | dataset | entity_id |
+            |          | trees   | ${id}     |
+            """,
+            """
+            | entities |
+            |          | dataset | entity_id | offline |
+            |          | trees   | ${id}     | no      |
+            """,
+        )
+        survey = """
+        | survey   |
+        |          | type | name | label   |
+        |          | text | id   | Tree id |
+        |          | text | q1   | Q1      |
+        """
+        for i, case in enumerate(cases):
+            with self.subTest(msg=i):
+                self.assertPyxformXform(
+                    md=survey + case,
+                    xml__xpath_match=[
+                        f"""
+                          /h:html/h:head/x:model[
+                            @entities:entities-version = "{co.ENTITIES_UPDATE_VERSION}"
+                          ]
+                        """,
+                        """
+                          /h:html/h:head/x:model/x:instance/x:test_name/x:meta/x:entity[
+                            not(@trunkVersion)
+                            and not(@branchId)
+                          ]
+                        """,
+                        """
+                          /h:html/h:head/x:model[
+                            not(x:bind[@nodeset = '/test_name/meta/entity/@trunkVersion'])
+                          ]
+                        """,
+                        """
+                          /h:html/h:head/x:model[
+                            not(x:bind[@nodeset = '/test_name/meta/entity/@branchId'])
+                          ]
+                        """,
+                    ],
+                )