[FIX] spreadsheet: correctly migrate date offset field matching

Steps to reproduce:
- Edit CRM -> Leads dashboard
- Edit filter "Period"
=> There is no period offset for the pivot 2, 4 and 6, despite the
   fact that these pivots have a period offset defined in the json
   data

This is because the field matching migration was not correct. It did
not take "offset" field into account.

Task-id 3138590

closes odoo/odoo#110221

X-original-commit: 2217c10ba771ece4a4d0d0485ce2f24b13754244
Signed-off-by: Rémi Rahir (rar) <rar@odoo.com>
Signed-off-by: Pierre Rousseau (pro) <pro@odoo.com>

addons/spreadsheet/static/src/o_spreadsheet/migration.js

@@ -144,6 +144,9 @@ function migrate4to5(data) {
                 data.pivots[id].fieldMatching = {};
             }
             data.pivots[id].fieldMatching[filter.id] = { chain: fm.field, type: fm.type };
+            if ("offset" in fm) {
+                data.pivots[id].fieldMatching[filter.id].offset = fm.offset;
+            }
         }
         delete filter.pivotFields;
 
@@ -156,6 +159,9 @@ function migrate4to5(data) {
                 data.lists[id].fieldMatching = {};
             }
             data.lists[id].fieldMatching[filter.id] = { chain: fm.field, type: fm.type };
+            if ("offset" in fm) {
+                data.lists[id].fieldMatching[filter.id].offset = fm.offset;
+            }
         }
         delete filter.listFields;
 
@@ -178,6 +184,9 @@ function migrate4to5(data) {
                 figure.data.fieldMatching = {};
             }
             figure.data.fieldMatching[filter.id] = { chain: fm.field, type: fm.type };
+            if ("offset" in fm) {
+                figure.data.fieldMatching[filter.id].offset = fm.offset;
+            }
         }
         delete filter.graphFields;
     }

addons/spreadsheet/static/tests/migrations/migrations.js

@@ -226,6 +226,72 @@ QUnit.test("fieldMatchings are moved from filters to their respective datasource
     });
 });
 
+QUnit.test("fieldMatchings offsets are correctly preserved after migration", (assert) => {
+    const data = {
+        globalFilters: [
+            {
+                id: "Filter",
+                label: "MyFilter1",
+                type: "relation",
+                listFields: {
+                    1: {
+                        field: "parent_id",
+                        type: "date",
+                        offset: "-1",
+                    },
+                },
+                pivotFields: {
+                    1: {
+                        field: "parent_id",
+                        type: "date",
+                        offset: "-1",
+                    },
+                },
+                graphFields: {
+                    fig1: {
+                        field: "parent_id",
+                        type: "date",
+                        offset: "-1",
+                    },
+                },
+            },
+        ],
+        pivots: {
+            1: {
+                name: "Name",
+            },
+        },
+        lists: {
+            1: {
+                name: "Name",
+            },
+        },
+        sheets: [
+            {
+                figures: [
+                    {
+                        id: "fig1",
+                        tag: "chart",
+                        data: {
+                            type: "odoo_bar",
+                        },
+                    },
+                ],
+            },
+        ],
+    };
+    const migratedData = migrate(data);
+    assert.deepEqual(migratedData.pivots["1"].fieldMatching, {
+        Filter: { chain: "parent_id", type: "date", offset: "-1" },
+    });
+    assert.deepEqual(migratedData.lists["1"].fieldMatching, {
+        Filter: { chain: "parent_id", type: "date", offset: "-1" },
+    });
+    assert.deepEqual(migratedData.sheets[0].figures[0].data.fieldMatching, {
+        Filter: { chain: "parent_id", type: "date", offset: "-1" },
+    });
+});
+
 QUnit.test("Odoo version is exported", (assert) => {
     const model = new Model();
     assert.strictEqual(model.exportData().odooVersion, ODOO_VERSION);