metamaps--metamaps/app/controllers/maps_controller.rb

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class MapsController < ApplicationController
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before_action :require_user, only: [:create, :update, :screenshot, :destroy]
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after_action :verify_authorized, except: [:activemaps, :featuredmaps, :mymaps, :usermaps]
after_action :verify_policy_scoped, only: [:activemaps, :featuredmaps, :mymaps, :usermaps]
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respond_to :html, :json
autocomplete :map, :name, :full => true, :extra_data => [:user_id]
# GET /explore/active
def activemaps
page = params[:page].present? ? params[:page] : 1
@maps = policy_scope(Map).order("updated_at DESC")
.page(page).per(20)
# root url => main/home. main/home renders maps/activemaps view.
redirect_to root_url and return if authenticated?
respond_to do |format|
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format.html { respond_with(@maps, @user) }
format.json { render json: @maps }
end
end
# GET /explore/featured
def featuredmaps
page = params[:page].present? ? params[:page] : 1
@maps = policy_scope(
Map.where("maps.featured = ? AND maps.permission != ?",
true, "private")
).order("updated_at DESC").page(page).per(20)
respond_to do |format|
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format.html { respond_with(@maps, @user) }
format.json { render json: @maps }
end
end
# GET /explore/mine
def mymaps
return redirect_to activemaps_url if !authenticated?
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page = params[:page].present? ? params[:page] : 1
@maps = policy_scope(
Map.where("maps.user_id = ?", current_user.id)
).order("updated_at DESC").page(page).per(20)
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respond_to do |format|
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format.html { respond_with(@maps, @user) }
format.json { render json: @maps }
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end
end
# GET /explore/mapper/:id
def usermaps
page = params[:page].present? ? params[:page] : 1
@user = User.find(params[:id])
@maps = policy_scope(Map.where(user: @user))
.order("updated_at DESC").page(page).per(20)
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respond_to do |format|
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format.html { respond_with(@maps, @user) }
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format.json { render json: @maps }
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end
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end
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# GET maps/:id
def show
@map = Map.find(params[:id])
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authorize @map
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respond_to do |format|
format.html {
@allmappers = @map.contributors
@alltopics = @map.topics.to_a.delete_if {|t| t.permission == "private" && (!authenticated? || (authenticated? && current_user.id != t.user_id)) }
@allsynapses = @map.synapses.to_a.delete_if {|s| s.permission == "private" && (!authenticated? || (authenticated? && current_user.id != s.user_id)) }
@allmappings = @map.mappings.to_a.delete_if {|m|
object = m.mappable
!object || (object.permission == "private" && (!authenticated? || (authenticated? && current_user.id != object.user_id)))
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}
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respond_with(@allmappers, @allmappings, @allsynapses, @alltopics, @map)
}
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format.json { render json: @map.as_json }
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end
end
# GET maps/:id/contains
def contains
@map = Map.find(params[:id])
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authorize @map
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@allmappers = @map.contributors
@alltopics = @map.topics.to_a.delete_if {|t| t.permission == "private" && (!authenticated? || (authenticated? && current_user.id != t.user_id)) }
@allsynapses = @map.synapses.to_a.delete_if {|s| s.permission == "private" && (!authenticated? || (authenticated? && current_user.id != s.user_id)) }
@allmappings = @map.mappings.to_a.delete_if {|m|
object = m.mappable
!object || (object.permission == "private" && (!authenticated? || (authenticated? && current_user.id != object.user_id)))
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}
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@json = Hash.new()
@json['map'] = @map
@json['topics'] = @alltopics
@json['synapses'] = @allsynapses
@json['mappings'] = @allmappings
@json['mappers'] = @allmappers
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respond_to do |format|
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format.json { render json: @json }
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end
end
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# POST maps
def create
@user = current_user
@map = Map.new()
@map.name = params[:name]
@map.desc = params[:desc]
@map.permission = params[:permission]
@map.user = @user
@map.arranged = false
if params[:topicsToMap]
@all = params[:topicsToMap]
@all = @all.split(',')
@all.each do |topic|
topic = topic.split('/')
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mapping = Mapping.new()
mapping.user = @user
mapping.mappable = Topic.find(topic[0])
mapping.xloc = topic[1]
mapping.yloc = topic[2]
@map.topicmappings << mapping
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authorize mapping, :create
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mapping.save
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end
if params[:synapsesToMap]
@synAll = params[:synapsesToMap]
@synAll = @synAll.split(',')
@synAll.each do |synapse_id|
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mapping = Mapping.new()
mapping.user = @user
mapping.map = @map
mapping.mappable = Synapse.find(synapse_id)
@map.synapsemappings << mapping
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authorize mapping, :create
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mapping.save
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end
end
@map.arranged = true
end
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authorize @map
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if @map.save
respond_to do |format|
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format.json { render :json => @map }
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end
else
respond_to do |format|
format.json { render :json => "invalid params" }
end
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end
end
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# PUT maps/:id
def update
@map = Map.find(params[:id])
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authorize @map
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respond_to do |format|
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if @map.update_attributes(map_params)
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format.json { head :no_content }
else
format.json { render json: @map.errors, status: :unprocessable_entity }
end
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end
end
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# POST maps/:id/upload_screenshot
def screenshot
@map = Map.find(params[:id])
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authorize @map
png = Base64.decode64(params[:encoded_image]['data:image/png;base64,'.length .. -1])
StringIO.open(png) do |data|
data.class.class_eval { attr_accessor :original_filename, :content_type }
data.original_filename = "map-" + @map.id.to_s + "-screenshot.png"
data.content_type = "image/png"
@map.screenshot = data
end
if @map.save
render :json => {:message => "Successfully uploaded the map screenshot."}
else
render :json => {:message => "Failed to upload image."}
end
end
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# DELETE maps/:id
def destroy
@map = Map.find(params[:id])
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authorize @map
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@map.delete
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respond_to do |format|
format.json do
head :no_content
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end
end
end
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private
# Never trust parameters from the scary internet, only allow the white list through.
def map_params
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params.require(:map).permit(:id, :name, :arranged, :desc, :permission)
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end
end