projectionist: add

projectionist.md

@@ -0,0 +1,58 @@
+---
+title: Projectionist
+---
+
+
+```json
+/* .projectionist.vim */
+{
+  "app/assets/react/components/*.jsx": {
+    "type": "component",
+    "template": [
+      "import React from 'react'",
+      "export default {} = React.createClass({ ... })"
+    ]
+  }
+```
+
+### Available options
+
+```js
+{
+  "lib/*.rb": {
+    "type": "lib", /* enables :Elib */
+    "alternate": "test/{}_spec.rb", /* for :A */
+    "template": [ ... ],
+
+    "path": "include", /* for `gf` i think */
+
+    "console": "node", /* for :Console */
+    "dispatch": "node", /* for :Dispatch (dispatch.vim) */
+    "start": "rails server", /* for :Start (dispatch.vim) */
+    "make": "node", /* for makeprg */
+  }
+}
+
+### Commands
+
+| Command | Description |
+|---------|-------------|
+| `:A` | Edit alternate |
+| `:A {file}` | Edit file |
+|---------|-------------|
+| `:AS` | Edit in split |
+| `:AV` | Edit in vsplit |
+| `:AT` | Edit in tab |
+|---------|-------------|
+| `:AD` | Replace with template |
+|---------|-------------|
+| `:Cd` | cd to root |
+| `:Cd {path}` | cd to path in root |
+| `:Lcd` | cd to root using :lcd |
+|---------|-------------|
+| `:ProjectDo {cmd}` | run command in root |
+{:.shortcuts}
+
+### Reference
+
+See [vim-projectionist](https://github.com/tpope/vim-projectionist).

rails-forms.md

@@ -138,3 +138,13 @@ radio_button("post", "category", "java")
 # <input type="radio" id="post_category_rails" name="post[category]"
 #  value="rails" checked="checked" />
 ```
+
+### Reference
+
+```rb
+select(method, choices = nil, options = {}, html_options = {}, &block)
+  choices == [ ['label', id], ... ]
+
+submit(value=nil, options={})
+```
+

rails-models.md

@@ -7,20 +7,39 @@ layout: default
 
 ```rb
 items = Model
-  .where(first_name: "Harvey")
+  .where(first_name: 'Harvey')
+  .where('id = 3')
+  .where('id = ?', 3)
 
   .order(:title)
   .order(title: :desc)
   .order("title DESC")
 
-  .reorder(:title)  # discards other .orders
-  .rewhere(...)
+  .reorder(:title)  # discards other .order's
+  .rewhere(...)     # discards other .where's
 
   .limit(2)
   .offset(1)
   .uniq
 ```
 
+Advanced:
+
+```rb
+  .select(:id)
+  .select([:id, :name])
+
+  .group(:name)   # GROUP BY name
+  .group('name AS grouped_name, age')
+  .having('SUM(price) > 30')  # needs to be chained with .group
+
+  .includes(:user)
+  .includes(user: [:articles])
+
+  .references(:posts)
+  # .where("posts.name = 'foo'").references(:posts)
+```
+
 ### [FinderMethods](http://devdocs.io/rails/activerecord/findermethods)
 
 ```rb