metamaps--metamaps/app/controllers/synapses_controller.rb

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class SynapsesController < ApplicationController
include TopicsHelper
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before_filter :require_user, only: [:new, :create, :edit, :update, :removefrommap, :destroy]
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respond_to :html, :js, :json
def autocomplete_synapse_desc
term = params[:term]
if term && !term.empty?
items = Synapse.select('DISTINCT "desc"').
where('LOWER("desc") like ?', term.downcase + '%').
limit(10).order('"desc"')
else
items = {}
end
render :json => json_for_autocomplete(items, :desc)
end
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# GET synapses
# or GET users/:user_id/synapses
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def index
@current = current_user
if params[:user_id]
@user = User.find(params[:user_id])
@synapses = Synapse.visibleToUser(@current, @user)
elsif
@synapses = Synapse.visibleToUser(@current, nil)
end
@synapsesjson = synapses_as_json(@current, @synapses).html_safe
respond_to do |format|
format.html
format.json { respond_with(@synapsesjson) }
end
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end
# Get synapses/new
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def new
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@synapse = Synapse.new
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@user = current_user
respond_with(@synapse)
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end
# GET synapses/:id
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def show
@current = current_user
@synapse = Synapse.find(params[:id]).authorize_to_show(@current)
@topic1 = @synapse.topic1.authorize_to_show(@current)
@topic2 = @synapse.topic2.authorize_to_show(@current)
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if @synapse && @topic1 && @topic2
@synapsejson = @synapse.selfplusnodes_as_json.html_safe
else
redirect_to root_url and return
end
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respond_to do |format|
format.html
format.json { respond_with(@synapsejson) }
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end
end
# GET synapses/:id/json
def json
@current = current_user
@synapse = Synapse.find(params[:id]).authorize_to_show(@current)
if not @synapse
redirect_to root_url and return
end
respond_to do |format|
format.json { render :json => @synapse.selfplusnodes_as_json }
end
end
# POST synapses
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def create
@user = current_user
@synapse = Synapse.new()
@synapse.desc = params[:synapse][:desc]
@synapse.topic1 = Topic.find(params[:synapse][:topic1id])
@synapse.topic2 = Topic.find(params[:synapse][:topic2id])
@synapse.permission = "commons"
@synapse.category = "from-to"
@synapse.weight = 5
@synapse.user = @user
@synapse.save
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if params[:synapse][:map]
@map = Map.find(params[:synapse][:map])
@mapping = Mapping.new()
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@mapping.category = "Synapse"
@mapping.user = @user
@mapping.map = @map
@mapping.synapse = @synapse
@mapping.save
#push add to map to realtime viewers of the map
#@mapping.message 'create',@user.id
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# set the permission of the synapse to whatever the permission of the
#map is
@synapse.permission = @map.permission
@synapse.save
end
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respond_to do |format|
format.html { respond_with(@user, location: synapse_url(@synapse)) }
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format.js { respond_with(@synapse) }
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end
end
# GET synapses/:id/edit
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def edit
@current = current_user
@synapse = Synapse.find(params[:id]).authorize_to_edit(@current)
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if @synapse
@topics = Topic.visibleToUser(@current, nil)
elsif not @synapse
redirect_to root_url and return
end
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respond_with(@synapse, @topics)
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end
# PUT synapses/:id
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def update
@current = current_user
@synapse = Synapse.find(params[:id]).authorize_to_edit(@current)
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if @synapse
@permissionBefore = @synapse.permission
if params[:synapse]
@synapse.desc = params[:synapse][:desc] if params[:synapse][:desc]
@synapse.category = params[:synapse][:category] if params[:synapse][:category]
@synapse.permission = params[:synapse][:permission] if params[:synapse][:permission]
end
if params[:node1_id] and params[:node1_id][:node1]
@synapse.topic1 = Topic.find(params[:node1_id][:node1])
end
if params[:node2_id] and params[:node2_id][:node2]
@synapse.topic2 = Topic.find(params[:node2_id][:node2])
end
@synapse.save
@permissionAfter = @synapse.permission
#push notify to anyone viewing this synapse on a map in realtime (see mapping.rb to understand the 'message' action)
# if the topic was private and is being switched to PU or CO it is the same as being created for other viewers
if @permissionBefore == "private" and @permissionAfter != "private"
#@synapse.message 'create',@current.id
elsif @permissionBefore != "private" and @permissionAfter == "private"
#@synapse.message 'destroy',@current.id
else
#@synapse.message 'update',@current.id
end
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end
respond_to do |format|
format.js
format.json { respond_with(@synapse) }
end
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end
# POST mappings/:map_id/:synapse_id/removefrommap
def removefrommap
@user = current_user
@mapping = Mapping.find_by_synapse_id_and_map_id(params[:synapse_id],params[:map_id])
#push notify to anyone viewing same map in realtime (see mapping.rb to understand the 'message' action)
#@mapping.message 'destroy',@user.id
@mapping.delete
respond_to do |format|
format.js
end
end
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# DELETE synapses/:id
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def destroy
@current = current_user
@synapse = Synapse.find(params[:id]).authorize_to_edit(@current)
@synapse.mappings.each do |m|
#push notify to anyone viewing same map in realtime (see mapping.rb to understand the 'message' action)
#m.message 'destroy',@current.id
m.delete
end
@synapse.delete if @synapse
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end
end