Allow to render map without marker on new forms.

app/assets/javascripts/map.js.coffee

@@ -8,8 +8,11 @@ App.Map =
         App.Map.initializeMap map
 
   initializeMap: (element) ->
-    latitude                  = $(element).data('marker-latitude')
-    longitude                 = $(element).data('marker-longitude')
+
+    mapCenterLatitude        = $(element).data('map-center-latitude')
+    mapCenterLongitude       = $(element).data('map-center-longitude')
+    markerLatitude           = $(element).data('marker-latitude')
+    markerLongitude          = $(element).data('marker-longitude')
     zoom                     = $(element).data('map-zoom')
     mapTilesProvider         = $(element).data('map-tiles-provider')
     mapAttributionSelector   = $(element).data('map-tiles-attribution-selector')
@@ -19,13 +22,33 @@ App.Map =
     removeMarkerSelector     = $(element).data('marker-remove-selector')
     attribution              = $(mapAttributionSelector)
     editable                 = $(element).data('marker-editable')
-    marker_icon               = L.divIcon(
+    marker                   = null;
+    markerIcon               = L.divIcon(
                                   iconSize: null
                                   html: '<div class="map-marker"></div>')
 
-    placeMarker = (e) ->
-      marker.setLatLng(e.latlng)
+    createMarker = (latitude, longitude) ->
+      markerLatLng  = new (L.LatLng)(latitude, longitude)
+      marker  = L.marker(markerLatLng, { icon: markerIcon, draggable: editable })
+      if editable
+        marker.on 'dragend', updateFormfields
       marker.addTo(map)
+      return marker
+
+    removeMarker = (e) ->
+      e.preventDefault()
+      if marker
+        map.removeLayer(marker)
+        marker = null;
+      clearFormfields()
+      return
+
+    moveOrPlaceMarker = (e) ->
+      if marker
+        marker.setLatLng(e.latlng)
+      else
+        marker = createMarker(e.latlng.lat, e.latlng.lng)
+
       updateFormfields()
       return
 
@@ -41,20 +64,14 @@ App.Map =
       $(zoomInputSelector).val ''
       return
 
-    removeMarker = (e) ->
-      e.preventDefault()
-      map.removeLayer(marker)
-      clearFormfields()
-      return
-
-    latLng  = new (L.LatLng)(latitude, longitude)
-    map     = L.map(element.id).setView(latLng, zoom)
-    marker  = L.marker(latLng, { icon: marker_icon, draggable: editable })
+    mapCenterLatLng  = new (L.LatLng)(mapCenterLatitude, mapCenterLongitude)
+    map              = L.map(element.id).setView(mapCenterLatLng, zoom)
     L.tileLayer(mapTilesProvider, attribution: attribution.html()).addTo map
-    marker.addTo(map)
+
+    if markerLatitude && markerLongitude
+      marker  = createMarker(markerLatitude, markerLongitude)
 
     if editable
       $(removeMarkerSelector).on 'click', removeMarker
-      marker.on 'dragend', updateFormfields
       map.on    'zoomend', updateFormfields
-      map.on    'click',   placeMarker
+      map.on    'click',   moveOrPlaceMarker

app/helpers/map_locations_helper.rb

@@ -1,5 +1,9 @@
 module MapLocationsHelper
 
+  def map_location_available?(map_location)
+    map_location.present? && map_location.filled?
+  end
+
   def map_location_latitude(map_location)
     map_location.present? && map_location.latitude.present? ? map_location.latitude : Setting["map.latitude"]
   end
@@ -30,12 +34,14 @@ module MapLocationsHelper
                           class: "map",
                           data:{
                             map: "",
+                            map_center_latitude: map_location_latitude(map_location),
+                            map_center_longitude: map_location_longitude(map_location),
                             map_zoom: map_location_zoom(map_location),
                             map_tiles_attribution_selector: map_location_attribution_id(map_location),
                             map_tiles_provider: "//{s}.tile.osm.org/{z}/{x}/{y}.png",
                             marker_editable: editable,
-                            marker_latitude: map_location_latitude(map_location),
-                            marker_longitude: map_location_longitude(map_location),
+                            marker_latitude: map_location.latitude,
+                            marker_longitude: map_location.longitude,
                             marker_remove_selector: "##{map_location_remove_marker_link_id(map_location)}",
                             latitude_input_selector: "##{map_location_input_id(parent_class, 'latitude')}",
                             longitude_input_selector: "##{map_location_input_id(parent_class, 'longitude')}",
@@ -43,6 +49,7 @@ module MapLocationsHelper
                           }
     map += map_attributtion(map_location)
     map += map_location_remove_marker(map_location, remove_marker_label) if editable
+    map
   end
 
   def map_attributtion(map_location, klass = nil)

app/models/budget/investment.rb

@@ -27,8 +27,8 @@ class Budget
     has_many :valuators, through: :valuator_assignments
     has_many :comments, as: :commentable
     has_many :milestones
-    has_one :map_location
-    accepts_nested_attributes_for :map_location
+    has_one :map_location, dependent: :destroy
+    accepts_nested_attributes_for :map_location, allow_destroy: true
 
     validates :title, presence: true
     validates :author, presence: true

app/models/map_location.rb

@@ -3,4 +3,8 @@ class MapLocation < ActiveRecord::Base
   belongs_to :proposal
   belongs_to :investment
 
+  def filled?
+    latitude.present? && longitude.present? && zoom.present?
+  end
+
 end

app/models/proposal.rb

@@ -25,8 +25,8 @@ class Proposal < ActiveRecord::Base
 
   belongs_to :author, -> { with_hidden }, class_name: 'User', foreign_key: 'author_id'
   belongs_to :geozone
-  has_one :map_location
-  accepts_nested_attributes_for :map_location
+  has_one :map_location, dependent: :destroy
+  accepts_nested_attributes_for :map_location, allow_destroy: true
   has_many :comments, as: :commentable
   has_many :proposal_notifications
 

app/views/admin/settings/_map_form.html.erb

@@ -2,6 +2,8 @@
   <div class="small-12 column">
     <div id="admin-map" class="map"
                         data-map
+                        data-map-center-latitude="<%= Setting["map.latitude"] %>"
+                        data-map-center-longitude="<%= Setting["map.longitude"] %>"
                         data-map-zoom="<%= Setting["map.zoom"] %>"
                         data-map-tiles-attribution-selector="#admin-map-attribution"
                         data-map-tiles-provider="//{s}.tile.osm.org/{z}/{x}/{y}.png"

app/views/budgets/investments/_investment_show.html.erb

@@ -45,6 +45,10 @@
 
       <%= safe_html_with_links investment.description.html_safe %>
 
+      <% if feature?(:map) && map_location_available?(@investment.map_location) %>
+        <%= render_map(@investment.map_location, "budget_investment", false, nil) %>
+      <% end %>
+
       <% if investment.external_url.present? %>
         <div class="document-link">
           <%= text_with_links investment.external_url %>

app/views/proposals/show.html.erb

@@ -68,6 +68,10 @@
 
         <%= safe_html_with_links @proposal.description %>
 
+        <% if feature?(:map) && map_location_available?(@proposal.map_location) %>
+          <%= render_map(@proposal.map_location, "proposal", false, nil) %>
+        <% end %>
+
         <% if @proposal.external_url.present? %>
           <div class="document-link">
             <p>

spec/models/map_location_spec.rb

@@ -0,0 +1,9 @@
+require 'rails_helper'
+
+describe MapLocation do
+
+  context "#filled?" do
+    
+  end
+
+end