disable permanent deletion of topics and synapses, except...

when the topic or synapse no longer appears on any maps, and this can currently only be performed over the api

app/policies/synapse_policy.rb

@@ -38,7 +38,7 @@ class SynapsePolicy < ApplicationPolicy
   end
 
   def destroy?
-    record.user == user || admin_override
+    record.mappings.empty? && (record.user == user || admin_override)
   end
 
   # Helpers

app/policies/topic_policy.rb

@@ -36,7 +36,7 @@ class TopicPolicy < ApplicationPolicy
   end
 
   def destroy?
-    record.user == user || admin_override
+    record.mappings.empty? && (record.user == user || admin_override)
   end
 
   def autocomplete_topic?

frontend/src/Metamaps/Control.js

@@ -39,76 +39,13 @@ const Control = {
     Selected.Nodes.splice(
       Selected.Nodes.indexOf(node), 1)
   },
-  deleteSelected: function() {
-    if (!Active.Map) return
-
-    var n = Selected.Nodes.length
-    var e = Selected.Edges.length
-    var ntext = n === 1 ? '1 topic' : n + ' topics'
-    var etext = e === 1 ? '1 synapse' : e + ' synapses'
-
-    var authorized = Active.Map.authorizeToEdit(Active.Mapper)
-
-    if (!authorized) {
-      GlobalUI.notifyUser('Cannot edit Public map.')
-      return
-    }
-
-    var r = window.confirm(outdent`
-      You have ${ntext} and ${etext} selected. Are you sure you want
-      to permanently delete them all? This will remove them from all
-      maps they appear on.`)
-    if (r) {
-      Control.deleteSelectedEdges()
-      Control.deleteSelectedNodes()
-    }
-
-    if (DataModel.Topics.length === 0) {
-      GlobalUI.showDiv('#instructions')
-    }
+  removeSelected: function() {
+    Control.removeSelectedEdges()
+    Control.removeSelectedNodes()
   },
-  deleteSelectedNodes: function() { // refers to deleting topics permanently
-    if (!Active.Map) return
-
-    var authorized = Active.Map.authorizeToEdit(Active.Mapper)
-
-    if (!authorized) {
-      GlobalUI.notifyUser('Cannot edit Public map.')
-      return
-    }
-
-    var l = Selected.Nodes.length
-    for (var i = l - 1; i >= 0; i -= 1) {
-      var node = Selected.Nodes[i]
-      Control.deleteNode(node.id)
-    }
-  },
-  deleteNode: function(nodeid) { // refers to deleting topics permanently
-    if (!Active.Map) return
-
-    var authorized = Active.Map.authorizeToEdit(Active.Mapper)
-
-    if (!authorized) {
-      GlobalUI.notifyUser('Cannot edit Public map.')
-      return
-    }
-
-    var node = Visualize.mGraph.graph.getNode(nodeid)
-    var topic = node.getData('topic')
-
-    var permToDelete = Active.Mapper.id === topic.get('user_id') || Active.Mapper.get('admin')
-    if (permToDelete) {
-      var mappableid = topic.id
-      var mapping = node.getData('mapping')
-      topic.destroy()
-      DataModel.Mappings.remove(mapping)
-      $(document).trigger(JIT.events.deleteTopic, [{
-        mappableid: mappableid
-      }])
-      Control.hideNode(nodeid)
-    } else {
-      GlobalUI.notifyUser('Only topics you created can be deleted')
-    }
+  hideSelected: function() {
+    Control.hideSelectedEdges()
+    Control.hideSelectedNodes()
   },
   removeSelectedNodes: function() { // refers to removing topics permanently from a map
     if (Active.Topic) {
@@ -237,59 +174,6 @@ const Control = {
     Selected.Edges.splice(
       Selected.Edges.indexOf(edge), 1)
   },
-  deleteSelectedEdges: function() { // refers to deleting topics permanently
-    if (!Active.Map) return
-
-    var authorized = Active.Map.authorizeToEdit(Active.Mapper)
-
-    if (!authorized) {
-      GlobalUI.notifyUser('Cannot edit Public map.')
-      return
-    }
-
-    const l = Selected.Edges.length
-    for (let i = l - 1; i >= 0; i -= 1) {
-      const edge = Selected.Edges[i]
-      Control.deleteEdge(edge)
-    }
-  },
-  deleteEdge: function(edge) {
-    if (!Active.Map) return
-
-    var authorized = Active.Map.authorizeToEdit(Active.Mapper)
-
-    if (!authorized) {
-      GlobalUI.notifyUser('Cannot edit Public map.')
-      return
-    }
-
-    var index = edge.getData('displayIndex') ? edge.getData('displayIndex') : 0
-
-    var synapse = edge.getData('synapses')[index]
-    var mapping = edge.getData('mappings')[index]
-
-    var permToDelete = Active.Mapper.id === synapse.get('user_id') || Active.Mapper.get('admin')
-    if (permToDelete) {
-      if (edge.getData('synapses').length - 1 === 0) {
-        Control.hideEdge(edge)
-      }
-      var mappableid = synapse.id
-      synapse.destroy()
-
-      // the server will destroy the mapping, we just need to remove it here
-      DataModel.Mappings.remove(mapping)
-      edge.getData('mappings').splice(index, 1)
-      edge.getData('synapses').splice(index, 1)
-      if (edge.getData('displayIndex')) {
-        delete edge.data.$displayIndex
-      }
-      $(document).trigger(JIT.events.deleteSynapse, [{
-        mappableid: mappableid
-      }])
-    } else {
-      GlobalUI.notifyUser('Only synapses you created can be deleted')
-    }
-  },
   removeSelectedEdges: function() {
     // Topic view is handled by removeSelectedNodes
     if (!Active.Map) return
@@ -299,7 +183,7 @@ const Control = {
     var authorized = Active.Map.authorizeToEdit(Active.Mapper)
 
     if (!authorized) {
-      GlobalUI.notifyUser('Cannot edit Public map.')
+      GlobalUI.notifyUser('Cannot edit this map.')
       return
     }
 

frontend/src/Metamaps/JIT.js

@@ -37,10 +37,8 @@ const JIT = {
   events: {
     topicDrag: 'Metamaps:JIT:events:topicDrag',
     newTopic: 'Metamaps:JIT:events:newTopic',
-    deleteTopic: 'Metamaps:JIT:events:deleteTopic',
     removeTopic: 'Metamaps:JIT:events:removeTopic',
     newSynapse: 'Metamaps:JIT:events:newSynapse',
-    deleteSynapse: 'Metamaps:JIT:events:deleteSynapse',
     removeSynapse: 'Metamaps:JIT:events:removeSynapse',
     pan: 'Metamaps:JIT:events:pan',
     zoom: 'Metamaps:JIT:events:zoom',
@@ -1396,9 +1394,8 @@ const JIT = {
     const disabled = authorized ? '' : 'disabled'
 
     if (Active.Map) menustring += '<li class="rc-hide"><div class="rc-icon"></div>Hide until refresh<div class="rc-keyboard">Ctrl+H</div></li>'
-    if (Active.Map && Active.Mapper) menustring += '<li class="rc-remove ' + disabled + '"><div class="rc-icon"></div>Remove from map<div class="rc-keyboard">Ctrl+M</div></li>'
-    if (Active.Topic) menustring += '<li class="rc-remove"><div class="rc-icon"></div>Remove from view<div class="rc-keyboard">Ctrl+M</div></li>'
-    if (Active.Map && Active.Mapper) menustring += '<li class="rc-delete ' + disabled + '"><div class="rc-icon"></div>Delete<div class="rc-keyboard">Ctrl+D</div></li>'
+    if (Active.Map && Active.Mapper) menustring += '<li class="rc-remove ' + disabled + '"><div class="rc-icon"></div>Remove<div class="rc-keyboard">Ctrl+D</div></li>'
+    if (Active.Topic) menustring += '<li class="rc-remove"><div class="rc-icon"></div>Remove from view<div class="rc-keyboard">Ctrl+D</div></li>'
 
     if (Active.Topic) {
       menustring += '<li class="rc-center"><div class="rc-icon"></div>Center this topic<div class="rc-keyboard">Alt+E</div></li>'
@@ -1483,28 +1480,18 @@ const JIT = {
 
     // attach events to clicks on the list items
 
-    // delete the selected things from the database
-    if (authorized) {
-      $('.rc-delete').click(function() {
-        $('.rightclickmenu').remove()
-        Control.deleteSelected()
-      })
-    }
-
     // remove the selected things from the map
     if (Active.Topic || authorized) {
       $('.rc-remove').click(function() {
         $('.rightclickmenu').remove()
-        Control.removeSelectedEdges()
-        Control.removeSelectedNodes()
+        Control.removeSelected()
       })
     }
 
     // hide selected nodes and synapses until refresh
     $('.rc-hide').click(function() {
       $('.rightclickmenu').remove()
-      Control.hideSelectedEdges()
-      Control.hideSelectedNodes()
+      Control.hideSelected()
     })
 
     // when in radial, center on the topic you picked
@@ -1654,9 +1641,8 @@ const JIT = {
     const disabled = authorized ? '' : 'disabled'
 
     if (Active.Map) menustring += '<li class="rc-hide"><div class="rc-icon"></div>Hide until refresh<div class="rc-keyboard">Ctrl+H</div></li>'
-    if (Active.Map && Active.Mapper) menustring += '<li class="rc-remove ' + disabled + '"><div class="rc-icon"></div>Remove from map<div class="rc-keyboard">Ctrl+M</div></li>'
-    if (Active.Topic) menustring += '<li class="rc-remove"><div class="rc-icon"></div>Remove from view<div class="rc-keyboard">Ctrl+M</div></li>'
-    if (Active.Map && Active.Mapper) menustring += '<li class="rc-delete ' + disabled + '"><div class="rc-icon"></div>Delete<div class="rc-keyboard">Ctrl+D</div></li>'
+    if (Active.Map && Active.Mapper) menustring += '<li class="rc-remove ' + disabled + '"><div class="rc-icon"></div>Remove<div class="rc-keyboard">Ctrl+D</div></li>'
+    if (Active.Topic) menustring += '<li class="rc-remove"><div class="rc-icon"></div>Remove from view<div class="rc-keyboard">Ctrl+D</div></li>'
 
     if (Active.Map && Active.Mapper) menustring += '<li class="rc-spacer"></li>'
 
@@ -1703,28 +1689,18 @@ const JIT = {
 
     // attach events to clicks on the list items
 
-    // delete the selected things from the database
-    if (authorized) {
-      $('.rc-delete').click(function() {
-        $('.rightclickmenu').remove()
-        Control.deleteSelected()
-      })
-    }
-
     // remove the selected things from the map
     if (authorized) {
       $('.rc-remove').click(function() {
         $('.rightclickmenu').remove()
-        Control.removeSelectedEdges()
-        Control.removeSelectedNodes()
+        Control.removeSelected()
       })
     }
 
     // hide selected nodes and synapses until refresh
     $('.rc-hide').click(function() {
       $('.rightclickmenu').remove()
-      Control.hideSelectedEdges()
-      Control.hideSelectedNodes()
+      Control.hideSelected()
     })
 
     // change the permission of all the selected nodes and synapses that you were the originator of

frontend/src/Metamaps/Listeners.js

@@ -60,7 +60,7 @@ const Listeners = {
         case 68: // if d or D is pressed
           if (e.ctrlKey || e.metaKey) {
             e.preventDefault()
-            Control.deleteSelected()
+            Control.removeSelected()
           }
           break
         case 69: // if e or E is pressed
@@ -84,15 +84,16 @@ const Listeners = {
         case 72: // if h or H is pressed
           if (e.ctrlKey || e.metaKey) {
             e.preventDefault()
-            Control.hideSelectedNodes()
-            Control.hideSelectedEdges()
+            Control.hideSelected()
           }
           break
         case 77: // if m or M is pressed
+          // since we're removing 'deletion', we have Ctrl-D available for this now, but leave this in
+          // as a deprecated function, just in case its what people got used to
+          // or should we do a GlobalUI.notifyUser to ask them to switch?
           if (e.ctrlKey || e.metaKey) {
             e.preventDefault()
-            Control.removeSelectedNodes()
-            Control.removeSelectedEdges()
+            Control.removeSelected()
           }
           break
         case 82: // if r or R is pressed

frontend/src/Metamaps/Realtime/index.js

@@ -29,11 +29,9 @@ import {
   TOPIC_CREATED,
   TOPIC_UPDATED,
   TOPIC_REMOVED,
-  TOPIC_DELETED,
   SYNAPSE_CREATED,
   SYNAPSE_UPDATED,
   SYNAPSE_REMOVED,
-  SYNAPSE_DELETED,
   PEER_COORDS_UPDATED,
   MAP_UPDATED
 } from './events'
@@ -58,11 +56,9 @@ import {
   topicCreated,
   topicUpdated,
   topicRemoved,
-  topicDeleted,
   synapseCreated,
   synapseUpdated,
   synapseRemoved,
-  synapseDeleted,
   mapUpdated
 } from './receivable'
 
@@ -84,11 +80,9 @@ import {
   createTopic,
   updateTopic,
   removeTopic,
-  deleteTopic,
   createSynapse,
   updateSynapse,
   removeSynapse,
-  deleteSynapse,
   updateMap
 } from './sendable'
 
@@ -304,11 +298,6 @@ let Realtime = {
     }
     $(document).on(JIT.events.newTopic + '.map', createTopic)
 
-    var deleteTopic = function(event, data) {
-      self.deleteTopic(data)
-    }
-    $(document).on(JIT.events.deleteTopic + '.map', deleteTopic)
-
     var removeTopic = function(event, data) {
       self.removeTopic(data)
     }
@@ -319,11 +308,6 @@ let Realtime = {
     }
     $(document).on(JIT.events.newSynapse + '.map', createSynapse)
 
-    var deleteSynapse = function(event, data) {
-      self.deleteSynapse(data)
-    }
-    $(document).on(JIT.events.deleteSynapse + '.map', deleteSynapse)
-
     var removeSynapse = function(event, data) {
       self.removeSynapse(data)
     }
@@ -500,11 +484,9 @@ const sendables = [
   ['createTopic', createTopic],
   ['updateTopic', updateTopic],
   ['removeTopic', removeTopic],
-  ['deleteTopic', deleteTopic],
   ['createSynapse', createSynapse],
   ['updateSynapse', updateSynapse],
   ['removeSynapse', removeSynapse],
-  ['deleteSynapse', deleteSynapse],
   ['updateMap', updateMap]
 ]
 sendables.forEach(sendable => {
@@ -531,11 +513,9 @@ const subscribeToEvents = (Realtime, socket) => {
   socket.on(TOPIC_CREATED, topicCreated(Realtime))
   socket.on(TOPIC_UPDATED, topicUpdated(Realtime))
   socket.on(TOPIC_REMOVED, topicRemoved(Realtime))
-  socket.on(TOPIC_DELETED, topicDeleted(Realtime))
   socket.on(SYNAPSE_CREATED, synapseCreated(Realtime))
   socket.on(SYNAPSE_UPDATED, synapseUpdated(Realtime))
   socket.on(SYNAPSE_REMOVED, synapseRemoved(Realtime))
-  socket.on(SYNAPSE_DELETED, synapseDeleted(Realtime))
   socket.on(MAP_UPDATED, mapUpdated(Realtime))
 }
 

realtime/global.js

@@ -1,9 +1,7 @@
 const {
   // server sendable, client receivable
   TOPIC_UPDATED,
-  TOPIC_DELETED,
   SYNAPSE_UPDATED,
-  SYNAPSE_DELETED,
   MAP_UPDATED,
   JUNTO_UPDATED,
 
@@ -13,15 +11,12 @@ const {
   JOIN_MAP,
   LEAVE_MAP,
   UPDATE_TOPIC,
-  DELETE_TOPIC,
   UPDATE_SYNAPSE,
-  DELETE_SYNAPSE,
   UPDATE_MAP
 } = require('../frontend/src/Metamaps/Realtime/events')
 
 module.exports = function(io, store) {
   store.subscribe(() => {
-    console.log(store.getState())
     io.sockets.emit(JUNTO_UPDATED, store.getState())
   })
 
@@ -38,18 +33,10 @@ module.exports = function(io, store) {
       socket.broadcast.emit(TOPIC_UPDATED, data)
     })
 
-    socket.on(DELETE_TOPIC, function(data) {
-      socket.broadcast.emit(TOPIC_DELETED, data)
-    })
-
     socket.on(UPDATE_SYNAPSE, function(data) {
       socket.broadcast.emit(SYNAPSE_UPDATED, data)
     })
 
-    socket.on(DELETE_SYNAPSE, function(data) {
-      socket.broadcast.emit(SYNAPSE_DELETED, data)
-    })
-
     socket.on(UPDATE_MAP, function(data) {
       socket.broadcast.emit(MAP_UPDATED, data)
     })