fix(node): allow passing extra pages context to createAdvancedPage()

Author: mohatt

README.md

@@ -411,7 +411,7 @@ Check out [example](https://github.com/mohatt/gatsby-plugin-advanced-pages/tree/
 These are the functions exposed by the plugin.
 
 #### createAdvancedPage
-> `createAdvancedPage({ route: string, params?: object, pagination?: object, filter?: object }): void`
+> `createAdvancedPage({ route: string, params?: object, pagination?: object, ...context }): void`
 
 Creates page(s) based on given input paramaters. *Note: This function can only be called within [Page helpers](#page-helpers).*
 

src/gatsby/__tests__/__snapshots__/create-pages.js.snap

@@ -200,6 +200,51 @@ module.exports = [
 ];"
 `;
 
+exports[`createPages correctly creates pages on (page-context) 1`] = `
+Array [
+  Array [
+    Object {
+      "component": "/virtual/project/src/templates/page.js",
+      "context": Object {
+        "id": "about-id",
+        "name": "adam",
+        "profile": Object {
+          "age": 25,
+          "gender": "male",
+        },
+      },
+      "path": "/about/adam",
+    },
+  ],
+  Array [
+    Object {
+      "component": "/virtual/project/src/templates/page.js",
+      "context": Object {
+        "id": "about-id",
+        "name": "sara",
+        "profile": Object {
+          "age": 28,
+          "gender": "female",
+        },
+      },
+      "path": "/about/sara",
+    },
+  ],
+]
+`;
+
+exports[`createPages correctly creates pages on (page-context) 2`] = `
+"\\"use strict\\";
+
+module.exports = [
+  {
+    \\"name\\": \\"about\\",
+    \\"path\\": \\"/about/:name\\",
+    \\"scopes\\": {}
+  }
+];"
+`;
+
 exports[`createPages throws error on (duplicated-routes) 1`] = `[Error: 'pages/about2.md' is trying to define a route named 'about' that is already defined in 'pages/about.md']`;
 
 exports[`createPages throws error on (invalid-helper) 1`] = `[Error: Invalid helper 'whatever' defined in page 'pages/about.md':  File does not exist at '/virtual/project/gatsby/pages/whatever.js']`;

src/gatsby/lib/pages-creator.js

@@ -123,7 +123,7 @@ export default class PagesCreator {
     }
   }
 
-  createPage ({ route, params = {}, pagination, filter }) {
+  createPage ({ route, params = {}, pagination, ...context }) {
     const { page } = this
     if (typeof route !== 'string' || !route) {
       throw new TypeError(
@@ -144,14 +144,11 @@ export default class PagesCreator {
       component: page.templatePath,
       context: {
         id: page.id,
-        ...params
+        ...params,
+        ...context
       }
     }
 
-    if (filter) {
-      gatsbyPage.context.filter = filter
-    }
-
     if (pagination) {
       if (typeof pagination.count === 'undefined') {
         throw new TypeError(

test/__fixtures__/create-pages.js

@@ -195,5 +195,49 @@ export default [
         }
       }
     }
+  },
+  {
+    id: 'page-context',
+    routes: [
+      { name: 'about', path: '/about/:name', page: { path: 'pages/about.md' } },
+    ],
+    pages: [
+      {
+        id: 'about-id',
+        path: 'pages/about.md',
+        template: 'page',
+        helper: 'about',
+        routes: [
+          { name: 'about', path: '/about' }
+        ]
+      }
+    ],
+    files: {
+      templates: [ 'page' ],
+      helpers: {
+        about: function ({ createAdvancedPage }) {
+          createAdvancedPage({
+            route: 'about',
+            params: {
+              name: 'adam'
+            },
+            profile: {
+              gender: 'male',
+              age: 25
+            }
+          })
+          createAdvancedPage({
+            route: 'about',
+            params: {
+              name: 'sara'
+            },
+            profile: {
+              gender: 'female',
+              age: 28
+            }
+          })
+        }
+      }
+    }
   }
 ]