Module: ActiveRecord::ConnectionAdapters::PostGIS::ColumnExtensions

Defined in:
lib/active_record/connection_adapters/postgis/column_extensions.rb

Instance Method Summary collapse

Instance Method Details

#geographic? ⇒ Boolean

Returns:

  • (Boolean) 


13
14
15
 
# File 'lib/active_record/connection_adapters/postgis/column_extensions.rb', line 13

def geographic?
  sql_type.start_with?("geography") || (spatial? && limit.is_a?(Hash) && limit[:geographic])
end

#geometric_type ⇒ Object 



32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
 
# File 'lib/active_record/connection_adapters/postgis/column_extensions.rb', line 32

def geometric_type
  if spatial?
    case type.to_sym
    when :st_point then RGeo::Feature::Point
    when :st_line_string then RGeo::Feature::LineString
    when :st_polygon then RGeo::Feature::Polygon
    when :st_multi_point then RGeo::Feature::MultiPoint
    when :st_multi_line_string then RGeo::Feature::MultiLineString
    when :st_multi_polygon then RGeo::Feature::MultiPolygon
    when :st_geometry_collection then RGeo::Feature::GeometryCollection
    when :st_geometry then RGeo::Feature::Geometry
    when :st_geography then RGeo::Feature::Geometry
    # Legacy types
    when :geometry then RGeo::Feature::Geometry
    when :geography then RGeo::Feature::Geometry
    when :line_string then RGeo::Feature::LineString
    when :polygon then RGeo::Feature::Polygon
    when :multi_point then RGeo::Feature::MultiPoint
    when :multi_line_string then RGeo::Feature::MultiLineString
    when :multi_polygon then RGeo::Feature::MultiPolygon
    when :geometry_collection then RGeo::Feature::GeometryCollection
    else RGeo::Feature::Geometry
    end
  else
    nil
  end
end

#has_m? ⇒ Boolean

Returns:

  • (Boolean) 


74
75
76
77
78
79
80
81
82
83
84
85
86
 
# File 'lib/active_record/connection_adapters/postgis/column_extensions.rb', line 74

def has_m?
  if spatial?
    if limit.is_a?(Hash) && limit.key?(:has_m)
      limit[:has_m]
    elsif sql_type =~ /\b\w+M\b|\b\w+ZM\b/
      true
    else
      false
    end
  else
    nil
  end
end

#has_z? ⇒ Boolean

Returns:

  • (Boolean) 


60
61
62
63
64
65
66
67
68
69
70
71
72
 
# File 'lib/active_record/connection_adapters/postgis/column_extensions.rb', line 60

def has_z?
  if spatial?
    if limit.is_a?(Hash) && limit.key?(:has_z)
      limit[:has_z]
    elsif sql_type =~ /\b\w+Z\b|\b\w+ZM\b/
      true
    else
      false
    end
  else
    nil
  end
end

#spatial? ⇒ Boolean

Returns:

  • (Boolean) 


7
8
9
10
11
 
# File 'lib/active_record/connection_adapters/postgis/column_extensions.rb', line 7

def spatial?
  type.to_s.start_with?("st_") ||
  [ :geography, :geometry, :geometry_collection, :line_string,
   :multi_line_string, :multi_point, :multi_polygon, :polygon ].include?(type.to_sym)
end

#srid ⇒ Object 



17
18
19
20
21
22
23
24
25
26
27
28
29
 
# File 'lib/active_record/connection_adapters/postgis/column_extensions.rb', line 17

def srid
  if spatial?
    if limit.is_a?(Hash) && limit[:srid]
      limit[:srid]
    elsif sql_type =~ /,(\d+)\)/
      $1.to_i
    else
      geographic? ? 4326 : 0
    end
  else
    nil
  end
end