Class: JSONToMap

Inherits:
Object
  • Object
show all
Defined in:
lib/jsontomap.rb

Instance Method Summary collapse

Constructor Details

#initialize(input, geocodefield, picturefield, namefield) ⇒ JSONToMap

Returns a new instance of JSONToMap.



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# File 'lib/jsontomap.rb', line 5

def initialize(input, geocodefield, picturefield, namefield)
  @input = JSON.parse(input)
  @geocodefield = geocodefield
  @picturefield = picturefield
  @namefield = namefield
  @geotrack = 0
end

Instance Method Details

#genmap ⇒ Object

Generates the JSON for the map



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# File 'lib/jsontomap.rb', line 14

def genmap
  outarray = Array.new
  
  @input.each do |i|
    if i[@geocodefield]
      temphash = Hash.new
      temphash["type"] = "Feature"
      temphash["properties"] = genpopup(i)

      # Geocode and chceck if it succeeded
      if i[@geocodefield].is_a? Array
        i[@geocodefield].each do |g|
          geohash = Hash.new
          geohash["type"] = "Point"
          begin
          cleaned = g.strip
          
          # Geocode
          if @geotrack < 10
            geocoded = Geocoder.coordinates(cleaned)
            @geotrack += 1
          else
            sleep(1)
            geocoded = Geocoder.coordinates(cleaned)
            @geotrack = 1
          end

         
          geohash["coordinates"] = [geocoded[1], geocoded[0]]
          temphash["geometry"] = geohash
          outarray.push(temphash)
          rescue
          end
        end

      else
        temphash["geometry"] = geocode(i)
        if temphash["geometry"] == "failed"
        else
          outarray.push(temphash)
        end
      end
    end
  end

  return JSON.pretty_generate(outarray)
end

#genpopup(item) ⇒ Object

Generates formatted popup text



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# File 'lib/jsontomap.rb', line 85

def genpopup(item)
  popuphash = Hash.new
  popupstring = ""
  
  if item[@picturefield]
    if (item[@picturefield].include? ".jpg") || (item[@picturefield].include? ".png")
      popupstring = '<img src="'+item[@picturefield]+'" /><br />'
    end
  end
  
  popupstring = popupstring + "<b>" + item[@namefield] + "</b><br /><br />"

  item.each do |k,v|
    popupstring = popupstring + "<b>" + k + "</b>: " + v.to_s + "<br />"
  end
  popuphash["popupContent"] = popupstring
  return popuphash
end

#geocode(item) ⇒ Object

Gets the coordinates for any location



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# File 'lib/jsontomap.rb', line 63

def geocode(item)
  geohash = Hash.new
  geohash["type"] = "Point"

  if @geotrack < 10
    geocoded = Geocoder.coordinates(item[@geocodefield])
    @geotrack += 1
  else
    sleep(1)
    geocoded = Geocoder.coordinates(item[@geocodefield])
    @geotrack = 1
  end

  begin
    geohash["coordinates"] = [geocoded[1], geocoded[0]]
    return geohash
  rescue
    return "failed"
  end
end

#geocodestart(location) ⇒ Object

Get coordinates for start location



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# File 'lib/jsontomap.rb', line 105

def geocodestart(location)
  out = Geocoder.coordinates(location)
  arr = [out[0], out[1]]
  return arr
end