How do get LineString to show using Leaflet? - ruby-on-rails

Question

I have pipe model in my database and it has geometry attribute (LineString). I added this to pipes_controller.rb:
def index
#pipes = Pipe.all
#geojson = Array.new
#pipes.each do |pipe|
#geojson<< {
type: "FeatureCollection",
crs: { type: "name", properties: { name: "urn:ogc:def:crs:OGC:1.3:CRS84" } },
features: [
type: 'Feature',
properties: {
geometry: {
type: 'LineString',
coordinates: pipe.get_coordinates
},
stroke: "#1087bf"
}
]}
end
respond_to do |format|
format.html
format.json { render json: #geojson } # respond with the created JSON object
end
end
This is pipes.js file:
$(document).ready(function() {
if ($("#pipes_map").length>0) {
var geojson;
var map = L.map('pipes_map', {
center: [42.44, 19.26],
zoom: 16
});
L.tileLayer('http://{s}.tile.osm.org/{z}/{x}/{y}.png', {
max_zoom: 22
}).addTo(map);
L.geoJson(geojson).addTo(map);
$.ajax({
dataType: 'text',
url: 'http://localhost:3000/pipes.json',
success: function(data) {
var myStyle = {
"color": "#ff7800",
"weight": 5,
"opacity": 0.65
};
geojson = $.parseJSON(data);
L.geoJson(geojson).addTo(map);
},
error : function() {
alert('Error!');
}
})
}
})
But my pipes don't appear on the map. What am I doing wrong? Maybe my pipes.json is poorly formated? Or style is not ok?

Answer 1

This is what the controller should look like:
def index
#pipes = Pipe.all
#geojson = Array.new
#pipes.each do |pipe|
#geojson<< {
type: 'Feature',
properties: {
:category=> pipe.category.name
},
geometry: {
type: 'LineString',
coordinates: pipe.get_coordinates
}
}
end
respond_to do |format|
format.html
format.json { render json: #geojson } # respond with the created JSON object
end
end
The rest is fine.