add/fixes some specs

lib/postgis_adapter.rb

@@ -254,10 +254,10 @@ def columns(table_name, name = nil) #:nodoc:
    alias :original_disable_referential_integrity :disable_referential_integrity
    def disable_referential_integrity(&block) #:nodoc:
      ignore_tables = %w{ geometry_columns spatial_ref_sys geography_columns }
-     execute(tables.select { |name| !ignore_tables.include?(name) }.collect { |name| "ALTER TABLE #{quote_table_name(name)} DISABLE TRIGGER ALL" }.join(";"))
+     execute(tables.select { |name| !ignore_tables.include?(name) }.map { |name| "ALTER TABLE #{quote_table_name(name)} DISABLE TRIGGER ALL" }.join(";"))
      yield
    ensure
-     execute(tables.select { |name| !ignore_tables.include?(name)}.collect { |name| "ALTER TABLE #{quote_table_name(name)} ENABLE TRIGGER ALL" }.join(";"))
+     execute(tables.select { |name| !ignore_tables.include?(name)}.map { |name| "ALTER TABLE #{quote_table_name(name)} ENABLE TRIGGER ALL" }.join(";"))
    end
  end
 

lib/postgis_adapter/common_spatial_adapter.rb

@@ -49,7 +49,7 @@ def table(table, stream)
 
       columns.each do |column|
 
-        raise StandardError, "Unknown type '#{column.sql_type}' for column '#{column.name}'" if @types[column.type].nil?
+        raise StandardError, "Unknown type '#{column.sql_type}' for column '#{column.name}' in table '#{table}'" if @types[column.type].nil?
         next if column.name == pk
         #need to use less_simplified_type  here or have each specific geometry type be simplified to a specific simplified type in Column and each one treated separately in the Column methods
         if column.is_a?(SpatialColumn)

lib/postgis_adapter/functions/common.rb

@@ -9,6 +9,13 @@
 module PostgisAdapter
 module Functions
 
+  #
+  # Test if a geometry is well formed.
+  #
+  def valid_geom?
+    postgis_calculate(:isvalid, self)
+  end
+
   #
   # True if the given geometries represent the same geometry.
   # Directionality is ignored.
@@ -233,12 +240,17 @@ def simplify(tolerance=0.1)
     postgis_calculate(:simplify, self, tolerance)
   end
 
-
   def simplify!(tolerance=0.1)
     #FIXME: not good..
     self.update_attribute(geo_columns.first, simplify)
   end
 
+  #
+  #
+  def buffer(width=0.1)
+    postgis_calculate(:buffer, self, width)
+  end
+
   #
   # Returns a "simplified" version of the given geometry using the Douglas-Peuker
   # algorithm. Will avoid creating derived geometries (polygons in particular) that
@@ -510,10 +522,18 @@ def to_utm
   #
   # http://geojson.org/
   #
-  def as_geo_json(precision=15, bbox=0)
+  def as_geo_json(precision=15, bbox = 0)
     postgis_calculate(:AsGeoJSON, self, [precision, bbox])
   end
 
+  #
+  # ST_PointOnSurface — Returns a POINT guaranteed to lie on the surface.
+  #
+  # geometry ST_PointOnSurface(geometry g1);eometry A, geometry B);
+  #
+  def point_on_surface
+    postgis_calculate(:pointonsurface, self)
+  end
 
   #
   #
@@ -875,7 +895,7 @@ def covers? other
     end
 
   end
-  
+
   #
   #
   #

spec/postgis_adapter/functions/class_spec.rb

@@ -9,6 +9,10 @@
     @p2 ||= Position.create!(:data => "PointClassClose", :geom => Point.from_x_y(99.9,99.9,4326))
   end
 
+  after(:all) do
+    [City, Street, Position].each { |m| m.delete_all }
+  end
+
   it "should find the closest other point" do
     Position.close_to(Point.from_x_y(99,99,4326), :srid => 4326)[0].data.should == @p1.data
   end

spec/postgis_adapter/functions/common_spec.rb

@@ -126,6 +126,8 @@
 
   describe "Polygon" do
 
+    it { City.first.data.should eql("City1") }
+
     it "sort by area size" do
       City.by_area.first.data.should == "City1" #[@c1, @c2, @c3]
     end
@@ -268,6 +270,10 @@
       @s1.intersection(@p2).should be_instance_of(GeometryCollection)
     end
 
+    it "have a point on surface" do
+      @s3.point_on_surface.should be_a GeoRuby::SimpleFeatures::Point
+    end
+
     describe "Self" do
 
       it do