From: Eduardo San Martin Morote <posva13@gmail.com>
Date: Sun, 2 May 2021 18:27:44 +0000 (+0200)
Subject: docs: add migration 0.0.7
X-Git-Tag: v2.0.0-alpha.14~12
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=7a09eeaf6d68a562464151c15d9bc1cd9dc7b718;p=thirdparty%2Fvuejs%2Fpinia.git

docs: add migration 0.0.7
---

diff --git a/docs/.vitepress/config.js b/docs/.vitepress/config.js
index 264e5b47..b0a526d9 100644
--- a/docs/.vitepress/config.js
+++ b/docs/.vitepress/config.js
@@ -202,6 +202,10 @@ module.exports = {
               text: 'Usage without setup()',
               link: '/cookbook/options-api.html',
             },
+            {
+              text: 'Migration from 0.0.7',
+              link: '/cookbook/migration-0-0-7.html',
+            },
           ],
         },
       ],
diff --git a/docs/cookbook/index.md b/docs/cookbook/index.md
index 94f885fd..2b2cc30f 100644
--- a/docs/cookbook/index.md
+++ b/docs/cookbook/index.md
@@ -1,3 +1,5 @@
 # Cookbook
 
 - [Composing Stores](./composing-stores.md): How to cross use multiple stores. e.g. using the user store in the cart store.
+- [Options API](./options-api.md): How to use Pinia without the composition API, outside of `setup()`.
+- [Migrating from 0.0.7](./migration-0-0-7.md): A migration guide with more examples than the changelog.
diff --git a/docs/cookbook/migration-0-0-7.md b/docs/cookbook/migration-0-0-7.md
new file mode 100644
index 00000000..35f96907
--- /dev/null
+++ b/docs/cookbook/migration-0-0-7.md
@@ -0,0 +1,119 @@
+# Migrating from 0.0.7
+
+The versions after `0.0.7`: `0.1.0`, and `0.2.0`, came with a few big breaking changes. This guide helps you migrate whether you use Vue 2 or Vue 3.
+
+If you have questions or issues regarding the migration, feel free to [open a discussion](https://github.com/posva/pinia/discussions/categories/q-a) to ask for help.
+
+## No more `store.state`
+
+You no longer access the store state via a `state` property, you can directly access any state property.
+
+Given a store defined with:
+
+```js
+const useStore({
+  id: 'main',
+  state: () => ({ counter: 0 })
+})
+```
+
+Do
+
+```diff
+ const store = useStore()
+
+-store.state.counter++
++store.counter.++
+```
+
+You can still access the whole store state with `$state` when needed:
+
+```diff
+-store.state = newState
++store.$state = newState
+```
+
+## Rename of store properties
+
+All store properties (`id`, `patch`, `reset`, etc) are now prefixed with `$` to allow properties defined on the store with the same names. Tip: you can refactor your whole codebase with F2 (or right-click + Refactor) on each of the store's properties
+
+```diff
+ const store = useStore()
+-store.patch({ counter: 0 })
++store.$patch({ counter: 0 })
+
+-store.reset()
++store.$reset()
+
+-store.id
++store.$id
+```
+
+## The Pinia instance
+
+It's now necessary to create a pinia instance and install it:
+
+If you are using Vue 2 (Pinia <= 1):
+
+```js
+import Vue from 'vue'
+import { createPinia, PiniaPlugin } from 'pinia'
+
+const pinia = createPinia()
+Vue.use(PiniaPlugin)
+new Vue({
+  el: '#app',
+  pinia,
+  // ...
+})
+```
+
+If you are using Vue 3 (Pinia >= 2):
+
+```js
+import { createApp } from 'vue'
+import { createPinia, PiniaPlugin } from 'pinia'
+import App from './App.vue'
+
+const pinia = createPinia()
+createApp(App).use(pinia).mount('#app')
+```
+
+The `pinia` instance is what holds the state and should **be unique per application**. Check the SSR section of the docs for more details.
+
+## SSR changes
+
+The SSR plugin `PiniaSsr` is no longer necessary and has been removed.
+With the introduction of pinia instances, `getRootState()` is no longer necessary and should be replaced with `pinia.state.value`:
+
+If you are using Vue 2 (Pinia <= 1):
+
+```diff
+// entry-server.js
+-import { getRootState, PiniaSsr } from 'pinia',
++import { createPinia, PiniaPlugin } from 'pinia',
+
+
+-// install plugin to automatically use correct context in setup and onServerPrefetch
+-Vue.use(PiniaSsr);
++Vue.use(PiniaPlugin)
+
+ export default context => {
++  const pinia = createPinia()
+   const app = new Vue({
+     // other options
++    pinia
+   })
+
+   context.rendered = () => {
+     // pass state to context
+-    context.piniaState = getRootState(context.req)
++    context.piniaState = pinia.state.value
+   };
+
+-   return { app }
++   return { app, pinia }
+ }
+```
+
+`setActiveReq()` and `getActiveReq()` have been replaced with `setActivePinia()` and `getActivePinia()` respectively. `setActivePinia()` can only be passed a `pinia` instance created with `createPinia()`. **Note that most of the time you won't directly use these functions**.