api06: Merge changesets code from Frederik.

app/controllers/changeset_controller.rb

@@ -0,0 +1,26 @@
+# The ChangesetController is the RESTful interface to Changeset objects
+
+class ChangesetController < ApplicationController
+  require 'xml/libxml'
+
+  before_filter :authorize, :only => [:create, :update, :delete]
+  before_filter :check_write_availability, :only => [:create, :update, :delete]
+  before_filter :check_read_availability, :except => [:create, :update, :delete]
+
+  # Create a changeset from XML.
+  def create
+    if request.put?
+      cs = Changeset.from_xml(request.raw_post, true)
+
+      if cs
+        cs.user_id = @user.id
+        cs.save_with_tags!
+        render :text => cs.id.to_s, :content_type => "text/plain"
+      else
+        render :nothing => true, :status => :bad_request
+      end
+    else
+      render :nothing => true, :status => :method_not_allowed
+    end
+  end
+end

app/controllers/changeset_tag_controller.rb

@@ -0,0 +1,9 @@
+class ChangesetTagController < ApplicationController
+  layout 'site'
+
+  def search
+    @tags = ChangesetTag.find(:all, :limit => 11, :conditions => ["match(v) against (?)", params[:query][:query].to_s] )
+  end
+
+
+end

app/models/changeset.rb

@@ -0,0 +1,73 @@
+class Changeset < ActiveRecord::Base
+  require 'xml/libxml'
+
+  belongs_to :user
+
+  has_many :changeset_tags, :foreign_key => 'id'
+
+  def self.from_xml(xml, create=false)
+    begin
+      p = XML::Parser.new
+      p.string = xml
+      doc = p.parse
+
+      cs = Changeset.new
+
+      doc.find('//osm/changeset').each do |pt|
+        if create
+          cs.created_at = Time.now
+        end
+
+        pt.find('tag').each do |tag|
+          cs.add_tag_keyval(tag['k'], tag['v'])
+        end
+      end
+    rescue Exception => ex
+    print "noes "+ ex.to_s + "\n"
+      cs = nil
+    end
+
+    return cs
+  end
+
+  def tags
+    unless @tags
+      @tags = {}
+      self.changeset_tags.each do |tag|
+        @tags[tag.k] = tag.v
+      end
+    end
+    @tags
+  end
+
+  def tags=(t)
+    @tags = t
+  end
+
+  def add_tag_keyval(k, v)
+    @tags = Hash.new unless @tags
+    @tags[k] = v
+  end
+
+  def save_with_tags!
+    t = Time.now
+
+    Changeset.transaction do
+      # fixme update modified_at time?
+      self.save!
+    end
+
+    ChangesetTag.transaction do
+      tags = self.tags
+      ChangesetTag.delete_all(['id = ?', self.id])
+
+      tags.each do |k,v|
+        tag = ChangesetTag.new
+        tag.k = k
+        tag.v = v
+        tag.id = self.id
+        tag.save!
+      end
+    end
+  end
+end

app/models/changeset_tag.rb

@@ -0,0 +1,5 @@
+class ChangesetTag < ActiveRecord::Base
+
+  belongs_to :changeset, :foreign_key => 'id'
+
+end

config/database.yml

@@ -29,8 +29,8 @@ test:
 
 production:
   adapter: mysql
-  database: openstreetmap
-  username: openstreetmap
-  password: openstreetmap
-  host: db.openstreetmap.org
+  database: osm
+  username: osm
+  password: osm
+  host: localhost
 

config/environment.rb

@@ -6,13 +6,13 @@ ENV['RAILS_ENV'] ||= 'production'
 
 # Specifies gem version of Rails to use when vendor/rails is not present
 # DO NOT BUMP THIS TO 2.0.2 AS THE LIVE SERVERS CAN'T RUN THAT
-RAILS_GEM_VERSION = '2.0.1' unless defined? RAILS_GEM_VERSION
+RAILS_GEM_VERSION = '2.0.2' unless defined? RAILS_GEM_VERSION
 
 # Set the server URL
 SERVER_URL = ENV['OSM_SERVER_URL'] || 'www.openstreetmap.org'
 
 # Application constants needed for routes.rb - must go before Initializer call
-API_VERSION = ENV['OSM_API_VERSION'] || '0.5'
+API_VERSION = ENV['OSM_API_VERSION'] || '0.6'
 
 # Set to :readonly to put the API in read-only mode or :offline to
 # take it completely offline

config/routes.rb

@@ -1,6 +1,8 @@
 ActionController::Routing::Routes.draw do |map|
 
   # API
+  map.connect "api/#{API_VERSION}/changeset/create", :controller => 'changeset', :action => 'create'
+  
   map.connect "api/#{API_VERSION}/node/create", :controller => 'node', :action => 'create'
   map.connect "api/#{API_VERSION}/node/:id/ways", :controller => 'way', :action => 'ways_for_node', :id => /\d+/
   map.connect "api/#{API_VERSION}/node/:id/relations", :controller => 'relation', :action => 'relations_for_node', :id => /\d+/

db/migrate/013_add_changesets.rb

@@ -0,0 +1,32 @@
+class AddChangesets < ActiveRecord::Migration
+  def self.up
+    create_table "changesets", innodb_table do |t|
+      t.column "id",             :bigint,   :limit => 20, :null => false
+      t.column "user_id",        :bigint,   :limit => 20, :null => false
+      t.column "created_at",     :datetime,               :null => false
+      t.column "open",           :boolean,                :null => false, :default => true
+      t.column "min_lat",        :integer,                :null => true
+      t.column "max_lat",        :integer,                :null => true
+      t.column "min_lon",        :integer,                :null => true
+      t.column "max_lon",        :integer,                :null => true
+    end
+
+    add_primary_key "changesets", ["id"]
+    # FIXME add indexes?
+
+    change_column "changesets", "id", :bigint, :limit => 20, :null => false, :options => "AUTO_INCREMENT"
+
+    create_table "changeset_tags", innodb_table do |t|
+      t.column "id", :bigint, :limit => 64, :null => false
+      t.column "k",  :string, :default => "", :null => false
+      t.column "v",  :string, :default => "", :null => false
+    end
+
+    add_index "changeset_tags", ["id"], :name => "changeset_tags_id_idx"
+  end
+
+  def self.down
+    drop_table "changesets"
+    drop_table "changeset_tags"
+  end
+end