Class: Wms

Inherits:
Object
  • Object
show all
Includes:
ActiveModel::Validations
Defined in:
app/models/wms.rb

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(name) ⇒ Wms

Returns a new instance of Wms.



8
9
10
 
# File 'app/models/wms.rb', line 8

def initialize(name)
  @name = name
end

Instance Attribute Details

#name ⇒ Object

Returns the value of attribute name.



6
7
8
 
# File 'app/models/wms.rb', line 6

def name
  @name
end

Class Method Details

.access_filters(ability, user, topic_name, layers) ⇒ Object 



45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
 
# File 'app/models/wms.rb', line 45

def self.access_filters(ability, user, topic_name, layers)
  access_filters = {}
  unless topic_name.blank?
    layers.each do |layer|
      access_filter = ability.access_filter("WMS", topic_name, layer)
      unless access_filter.nil?
        access_filter.each do |key, value|
          access_filter[key] = AccessFilter.user_value(user, value)
        end
        access_filters.merge!(access_filter)
      end
    end
  end
  access_filters
end

.sld_selection(layer, filter_property, filter_values) ⇒ Object

return SLD for selection



13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
 
# File 'app/models/wms.rb', line 13

def self.sld_selection(layer, filter_property, filter_values)
  sld = '<StyledLayerDescriptor xmlns="http://www.opengis.net/sld" version="1.0.0" xmlns:ogc="http://www.opengis.net/ogc" xmlns:gml="http://www.opengis.net/gml">'
  sld <<  "<NamedLayer>"
  sld <<    "<Name>#{layer.name}</Name>"
  sld <<    "<UserStyle>"
  sld <<      "<Name>default</Name>"
  sld <<      "<FeatureTypeStyle>"

  filter_values.each do |value|
    # NOTE: use a separate rule for each value as workaround, as combined filter with <ogc:Or> does not work as expected
    sld <<      "<Rule>"
    sld <<        "<Name>show-#{value}</Name>"
    sld <<        '<ogc:Filter>'
    sld <<          "<ogc:PropertyIsEqualTo>"
    sld <<            "<ogc:PropertyName>#{filter_property}</ogc:PropertyName>"
    sld <<            "<ogc:Literal>#{value}</ogc:Literal>"
    sld <<          "</ogc:PropertyIsEqualTo>"
    sld <<        "</ogc:Filter>"
    sld << layer.selection_symbolizer
    sld <<        "<MinScaleDenominator>0</MinScaleDenominator>"
    sld <<        "<MaxScaleDenominator>999999999</MaxScaleDenominator>"
    sld <<      "</Rule>"
  end

  sld <<      "</FeatureTypeStyle>"
  sld <<    "</UserStyle>"
  sld <<  "</NamedLayer>"
  sld << "</StyledLayerDescriptor>"

  sld
end