Fix bbox display again, how do we keep mixing our lons and lats?

[rails.git] / lib / osm.rb

diff --git a/lib/osm.rb b/lib/osm.rb
index 223e351f4c60a0e4790a6d45ee89f36541ede7f9..f372979a8d784bf99a49b14746e1753ee7b74927 100644 (file)
--- a/lib/osm.rb
+++ b/lib/osm.rb
@@ -11,46 +11,59 @@ module OSM
   # The base class for API Errors.
   class APIError < RuntimeError
     def render_opts
-      { :text => "", :status => :internal_server_error }
+      { :text => "Generic API Error", :status => :internal_server_error, :content_type => "text/plain" }
     end
   end
 
   # Raised when an API object is not found.
   class APINotFoundError < APIError
+    def render_opts
+      { :text => "The API wasn't found", :status => :not_found, :content_type => "text/plain" }
+    end
   end
 
   # Raised when a precondition to an API action fails sanity check.
   class APIPreconditionFailedError < APIError
+    def initialize(message = "")
+      @message = message
+    end
+    
     def render_opts
-      { :text => "", :status => :precondition_failed }
+      { :text => "Precondition failed: #{@message}", :status => :precondition_failed, :content_type => "text/plain" }
     end
   end
 
   # Raised when to delete an already-deleted object.
   class APIAlreadyDeletedError < APIError
     def render_opts
-      { :text => "", :status => :gone }
+      { :text => "The object has already been deleted", :status => :gone, :content_type => "text/plain" }
     end
   end
 
   # Raised when the user logged in isn't the same as the changeset
   class APIUserChangesetMismatchError < APIError
     def render_opts
-      { :text => "The user doesn't own that changeset", :status => :conflict }
+      { :text => "The user doesn't own that changeset", :status => :conflict, :content_type => "text/plain" }
     end
   end
 
   # Raised when the changeset provided is already closed
   class APIChangesetAlreadyClosedError < APIError
+    def initialize(changeset)
+      @changeset = changeset
+    end
+
+    attr_reader :changeset
+    
     def render_opts
-      { :text => "The supplied changeset has already been closed", :status => :conflict }
+      { :text => "The changeset #{@changeset.id} was closed at #{@changeset.closed_at}.", :status => :conflict, :content_type => "text/plain" }
     end
   end
   
   # Raised when a change is expecting a changeset, but the changeset doesn't exist
   class APIChangesetMissingError < APIError
     def render_opts
-      { :text => "You need to supply a changeset to be able to make a change", :status => :conflict }
+      { :text => "You need to supply a changeset to be able to make a change", :status => :conflict, :content_type => "text/plain" }
     end
   end
 
@@ -63,7 +76,7 @@ module OSM
     
     def render_opts
       { :text => "Changeset mismatch: Provided #{@provided} but only " +
-        "#{@allowed} is allowed.", :status => :conflict }
+      "#{@allowed} is allowed.", :status => :conflict, :content_type => "text/plain" }
     end
   end
   
@@ -76,34 +89,35 @@ module OSM
     
     def render_opts
       { :text => "Unknown action #{@provided}, choices are create, modify, delete.",
-      :status => :bad_request }
+      :status => :bad_request, :content_type => "text/plain" }
     end
   end
 
   # Raised when bad XML is encountered which stops things parsing as
   # they should.
   class APIBadXMLError < APIError
-    def initialize(model, xml)
-      @model, @xml = model, xml
+    def initialize(model, xml, message="")
+      @model, @xml, @message = model, xml, message
     end
 
     def render_opts
-      { :text => "Cannot parse valid #{@model} from xml string #{@xml}",
-        :status => :bad_request }
+      { :text => "Cannot parse valid #{@model} from xml string #{@xml}. #{@message}",
+      :status => :bad_request, :content_type => "text/plain" }
     end
   end
 
   # Raised when the provided version is not equal to the latest in the db.
   class APIVersionMismatchError < APIError
-    def initialize(provided, latest)
-      @provided, @latest = provided, latest
+    def initialize(id, type, provided, latest)
+      @id, @type, @provided, @latest = id, type, provided, latest
     end
 
-    attr_reader :provided, :latest
+    attr_reader :provided, :latest, :id, :type
 
     def render_opts
       { :text => "Version mismatch: Provided " + provided.to_s +
-      ", server had: " + latest.to_s, :status => :conflict }
+        ", server had: " + latest.to_s + " of " + type + " " + id.to_s, 
+        :status => :conflict, :content_type => "text/plain" }
     end
   end
 
@@ -118,7 +132,7 @@ module OSM
 
     def render_opts
       { :text => "Element #{@type}/#{@id} has duplicate tags with key #{@tag_key}.",
-        :status => :bad_request }
+        :status => :bad_request, :content_type => "text/plain" }
     end
   end
   
@@ -133,7 +147,19 @@ module OSM
     
     def render_opts
       { :text => "You tried to add #{provided} nodes to the way, however only #{max} are allowed",
-      :status => :bad_request }
+        :status => :bad_request, :content_type => "text/plain" }
+    end
+  end
+
+  ##
+  # raised when user input couldn't be parsed
+  class APIBadUserInput < APIError
+    def initialize(message)
+      @message = message
+    end
+
+    def render_opts
+      { :text => @message, :content_type => "text/plain", :status => :bad_request }
     end
   end
 
@@ -214,7 +240,7 @@ module OSM
   class GeoRSS
     def initialize(feed_title='OpenStreetMap GPS Traces', feed_description='OpenStreetMap GPS Traces', feed_url='http://www.openstreetmap.org/traces/')
       @doc = XML::Document.new
-      @doc.encoding = 'UTF-8' 
+      @doc.encoding = XML::Encoding::UTF_8
 
       rss = XML::Node.new 'rss'
       @doc.root = rss
@@ -300,7 +326,7 @@ module OSM
   class API
     def get_xml_doc
       doc = XML::Document.new
-      doc.encoding = 'UTF-8' 
+      doc.encoding = XML::Encoding::UTF_8
       root = XML::Node.new 'osm'
       root['version'] = API_VERSION
       root['generator'] = GENERATOR