Introduce basic views for organization

organization#index
organizaton#new and organization#edit

app/controllers/organizations_controller.rb

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+class OrganizationsController < ApplicationController
+	load_and_authorize_resource :organization
+
+	def index
+		@organizations = Organization.all
+	end
+
+	def create
+		@organization = Organization.new(organization_params)
+		if @organization.save
+			redirect_to organizations_path,
+			notice: 'Organization successfully created'
+		else
+			redirect_to new_organization_path,
+			error: @organization.errors.full_messages.join(', ')
+		end
+	end
+
+	def new
+		@organization = Organization.new
+	end
+
+	def edit
+	end
+
+	def update
+		if @organization.update_attributes(organization_params)
+			redirect_to organizations_path,
+			notice: 'Organization successfully updated'
+		else
+			redirect_to edit_organization_path(@organization),
+			error: @organization.errors.full_messages.join(', ')
+		end
+	end
+
+	private
+
+	def organization_params
+		params.require(:organization).permit(:name, :description, :picture)
+	end
+end

app/views/organizations/_form.html.haml

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+= semantic_form_for(@organization) do |f|
+  = f.inputs name: 'Organization details' do
+    = f.input :name, as: :string, required: true
+    = f.input :description, input_html: { rows: 5 }, placeholder: 'Decribe about your organization..'
+    = image_tag f.object.picture.thumb.url if f.object.picture?
+    - if @organization.picture
+      = image_tag(@organization.picture.thumb.url, width: '20%')
+    = f.input :picture
+  %p.text-right
+    - if @organization.new_record?
+      = f.submit 'Create Organization', class: 'btn btn-success'
+    - else
+      = f.submit 'Update Organization', class: 'btn btn-success'

app/views/organizations/edit.html.haml

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+.container
+  .row
+    .col-md-12
+      = render 'form'

app/views/organizations/index.html.haml

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+.container
+  .row
+    .col-md-12.page-header
+      %h1
+        Organizations
+        .btn-group.pull-right
+          = link_to 'Add new', new_organization_path, class: 'btn btn-mini btn-success'
+    - @organizations.each do |organization|
+      .col-md-4
+        .thumbnail
+          = image_tag(organization.picture.thumb.url, width: '20%')
+          .caption
+            %h4
+              = organization.name
+            %button.btn.btn-success Know More
+            = link_to 'Edit', edit_organization_path(organization), class: 'btn btn-mini btn-default'
+

app/views/organizations/new.html.haml

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+.container
+  .row
+    .col-md-12
+      = render 'form'