Remove a rescue, which is stopping a more detailed error message being returned to...

[rails.git] / app / models / relation.rb

diff --git a/app/models/relation.rb b/app/models/relation.rb
index 4e75eed357a4df79c9df6afacb2cac06d1ee4e17..95181ef053b657d93893e20e94d2c4026b842512 100644 (file)
--- a/app/models/relation.rb
+++ b/app/models/relation.rb
@@ -87,7 +87,7 @@ class Relation < ActiveRecord::Base
     return doc
   end
 
     return doc
   end
 

-  def to_xml_node(user_display_name_cache = nil)
+  def to_xml_node(changeset_cache = {}, user_display_name_cache = {})

     el1 = XML::Node.new 'relation'
     el1['id'] = self.id.to_s
     el1['visible'] = self.visible.to_s
     el1 = XML::Node.new 'relation'
     el1['id'] = self.id.to_s
     el1['visible'] = self.visible.to_s


@@ -95,19 +95,25 @@ class Relation < ActiveRecord::Base
     el1['version'] = self.version.to_s
     el1['changeset'] = self.changeset_id.to_s
 
     el1['version'] = self.version.to_s
     el1['changeset'] = self.changeset_id.to_s
 

-    user_display_name_cache = {} if user_display_name_cache.nil?
-    
-    if user_display_name_cache and user_display_name_cache.key?(self.changeset.user_id)
+    if changeset_cache.key?(self.changeset_id)
+      # use the cache if available
+    else
+      changeset_cache[self.changeset_id] = self.changeset.user_id
+    end
+
+    user_id = changeset_cache[self.changeset_id]
+
+    if user_display_name_cache.key?(user_id)

       # use the cache if available
     elsif self.changeset.user.data_public?
       # use the cache if available
     elsif self.changeset.user.data_public?

-      user_display_name_cache[self.changeset.user_id] = self.changeset.user.display_name
+      user_display_name_cache[user_id] = self.changeset.user.display_name

     else
     else

-      user_display_name_cache[self.changeset.user_id] = nil
+      user_display_name_cache[user_id] = nil

     end
 
     end
 

-    if not user_display_name_cache[self.changeset.user_id].nil?
-      el1['user'] = user_display_name_cache[self.changeset.user_id]
-      el1['uid'] = self.changeset.user_id.to_s
+    if not user_display_name_cache[user_id].nil?
+      el1['user'] = user_display_name_cache[user_id]
+      el1['uid'] = user_id.to_s

     end
 
     self.relation_members.each do |member|
     end
 
     self.relation_members.each do |member|


@@ -145,7 +151,7 @@ class Relation < ActiveRecord::Base
     if ids.empty?
       return []
     else
     if ids.empty?
       return []
     else

-      self.with_scope(:find => { :joins => "INNER JOIN current_relation_members ON current_relation_members.id = current_relations.id", :conditions => "current_relation_members.member_type = 'Node' AND current_relation_members.member_id IN (#{ids.join(',')})" }) do
+      self.with_scope(:find => { :joins => "INNER JOIN current_relation_members AS crm ON crm.id = current_relations.id", :conditions => "crm.member_type = 'Node' AND crm.member_id IN (#{ids.join(',')})" }) do

         return self.find(:all, options)
       end
     end
         return self.find(:all, options)
       end
     end


@@ -155,7 +161,7 @@ class Relation < ActiveRecord::Base
     if ids.empty?
       return []
     else
     if ids.empty?
       return []
     else

-      self.with_scope(:find => { :joins => "INNER JOIN current_relation_members ON current_relation_members.id = current_relations.id", :conditions => "current_relation_members.member_type = 'Way' AND current_relation_members.member_id IN (#{ids.join(',')})" }) do
+      self.with_scope(:find => { :joins => "INNER JOIN current_relation_members AS crm ON crm.id = current_relations.id", :conditions => "crm.member_type = 'Way' AND crm.member_id IN (#{ids.join(',')})" }) do

         return self.find(:all, options)
       end
     end
         return self.find(:all, options)
       end
     end


@@ -165,7 +171,7 @@ class Relation < ActiveRecord::Base
     if ids.empty?
       return []
     else
     if ids.empty?
       return []
     else

-      self.with_scope(:find => { :joins => "INNER JOIN current_relation_members ON current_relation_members.id = current_relations.id", :conditions => "current_relation_members.member_type = 'Relation' AND current_relation_members.member_id IN (#{ids.join(',')})" }) do
+      self.with_scope(:find => { :joins => "INNER JOIN current_relation_members AS crm ON crm.id = current_relations.id", :conditions => "crm.member_type = 'Relation' AND crm.member_id IN (#{ids.join(',')})" }) do

         return self.find(:all, options)
       end
     end
         return self.find(:all, options)
       end
     end


@@ -212,6 +218,11 @@ class Relation < ActiveRecord::Base
     # in the hash to be overwritten.
     raise OSM::APIDuplicateTagsError.new("relation", self.id, k) if @tags.include? k
 
     # in the hash to be overwritten.
     raise OSM::APIDuplicateTagsError.new("relation", self.id, k) if @tags.include? k
 

+    # check tag size here, as we don't create a RelationTag object until
+    # just before we save...
+    raise OSM::APIBadUserInput.new("Relation #{self.id} has a tag with too long a key, '#{k}'.") if k.length > 255
+    raise OSM::APIBadUserInput.new("Relation #{self.id} has a tag with too long a value, '#{k}'='#{v}'.") if v.length > 255
+

     @tags[k] = v
   end
 
     @tags[k] = v
   end
 


@@ -236,8 +247,9 @@ class Relation < ActiveRecord::Base
     Relation.transaction do
       check_consistency(self, new_relation, user)
       # This will check to see if this relation is used by another relation
     Relation.transaction do
       check_consistency(self, new_relation, user)
       # This will check to see if this relation is used by another relation

-      rel = RelationMember.find(:first, :joins => "INNER JOIN current_relations ON current_relations.id=current_relation_members.id", :conditions => [ "visible = ? AND member_type='Relation' and member_id=? ", true, self.id ])
-      raise OSM::APIPreconditionFailedError.new("The relation #{new_relation.id} is a used in relation #{rel.id}.") unless rel.nil?
+      rel = RelationMember.find(:first, :joins => :relation, 
+                                :conditions => [ "visible = ? AND member_type='Relation' and member_id=? ", true, self.id ])
+      raise OSM::APIPreconditionFailedError.new("The relation #{new_relation.id} is used in relation #{rel.relation.id}.") unless rel.nil?

 
       self.changeset_id = new_relation.changeset_id
       self.tags = {}
 
       self.changeset_id = new_relation.changeset_id
       self.tags = {}


@@ -249,7 +261,7 @@ class Relation < ActiveRecord::Base
 
   def update_from(new_relation, user)
     check_consistency(self, new_relation, user)
 
   def update_from(new_relation, user)
     check_consistency(self, new_relation, user)

-    unless new_relation.preconditions_ok?
+    unless new_relation.preconditions_ok?(self.members)

       raise OSM::APIPreconditionFailedError.new("Cannot update relation #{self.id}: data or member data is invalid.")
     end
     self.changeset_id = new_relation.changeset_id
       raise OSM::APIPreconditionFailedError.new("Cannot update relation #{self.id}: data or member data is invalid.")
     end
     self.changeset_id = new_relation.changeset_id


@@ -270,7 +282,7 @@ class Relation < ActiveRecord::Base
     save_with_history!
   end
 
     save_with_history!
   end
 

-  def preconditions_ok?
+  def preconditions_ok?(good_members = [])

     # These are hastables that store an id in the index of all 
     # the nodes/way/relations that have already been added.
     # If the member is valid and visible then we add it to the 
     # These are hastables that store an id in the index of all 
     # the nodes/way/relations that have already been added.
     # If the member is valid and visible then we add it to the 


@@ -279,19 +291,23 @@ class Relation < ActiveRecord::Base
     # relation, then the hash table nodes would contain:
     # => {50=>true, 1=>true}
     elements = { :node => Hash.new, :way => Hash.new, :relation => Hash.new }
     # relation, then the hash table nodes would contain:
     # => {50=>true, 1=>true}
     elements = { :node => Hash.new, :way => Hash.new, :relation => Hash.new }

+
+    # pre-set all existing members to good
+    good_members.each { |m| elements[m[0].downcase.to_sym][m[1]] = true }
+

     self.members.each do |m|
       # find the hash for the element type or die
     self.members.each do |m|
       # find the hash for the element type or die

-      logger.debug m[0]

       hash = elements[m[0].downcase.to_sym] or return false
       # unless its in the cache already
       unless hash.key? m[1]
         # use reflection to look up the appropriate class
         model = Kernel.const_get(m[0].capitalize)
         # get the element with that ID
       hash = elements[m[0].downcase.to_sym] or return false
       # unless its in the cache already
       unless hash.key? m[1]
         # use reflection to look up the appropriate class
         model = Kernel.const_get(m[0].capitalize)
         # get the element with that ID

-        element = model.find(m[1])
+        element = model.find(:first, :conditions =>["id = ?", m[1]])

 
         # and check that it is OK to use.
         unless element and element.visible? and element.preconditions_ok?
 
         # and check that it is OK to use.
         unless element and element.visible? and element.preconditions_ok?

+          raise OSM::APIPreconditionFailedError.new("Relation with id #{self.id} cannot be saved due to #{m[0]} with id #{element.id}")

           return false
         end
         hash[m[1]] = true
           return false
         end
         hash[m[1]] = true


@@ -299,8 +315,6 @@ class Relation < ActiveRecord::Base
     end
 
     return true
     end
 
     return true

-  rescue
-    return false

   end
 
   # Temporary method to match interface to nodes
   end
 
   # Temporary method to match interface to nodes


@@ -312,12 +326,12 @@ class Relation < ActiveRecord::Base
   # if any members are referenced by placeholder IDs (i.e: negative) then
   # this calling this method will fix them using the map from placeholders 
   # to IDs +id_map+. 
   # if any members are referenced by placeholder IDs (i.e: negative) then
   # this calling this method will fix them using the map from placeholders 
   # to IDs +id_map+. 

-  def fix_placeholders!(id_map)
+  def fix_placeholders!(id_map, placeholder_id = nil)

     self.members.map! do |type, id, role|
       old_id = id.to_i
       if old_id < 0
         new_id = id_map[type.downcase.to_sym][old_id]
     self.members.map! do |type, id, role|
       old_id = id.to_i
       if old_id < 0
         new_id = id_map[type.downcase.to_sym][old_id]

-        raise "invalid placeholder" if new_id.nil?
+        raise OSM::APIBadUserInput.new("Placeholder #{type} not found for reference #{old_id} in relation #{self.id.nil? ? placeholder_id : self.id}.") if new_id.nil?

         [type, new_id, role]
       else
         [type, id, role]
         [type, new_id, role]
       else
         [type, id, role]


@@ -362,7 +376,6 @@ class Relation < ActiveRecord::Base
       tags_changed |= (not tags.empty?)
       RelationTag.delete_all(:id => self.id)
       self.tags.each do |k,v|
       tags_changed |= (not tags.empty?)
       RelationTag.delete_all(:id => self.id)
       self.tags.each do |k,v|

-        logger.info "TAG added: #{k} -> #{v}"

         tag = RelationTag.new
         tag.k = k
         tag.v = v
         tag = RelationTag.new
         tag.k = k
         tag.v = v