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# File 'app/helpers/databaseformalizer/entity_defs_helper.rb', line 3
def EntityDefsHelper.setMetaModelGraph(uri )
require 'graphviz'
g = GraphViz.new( :G, :type => :digraph )
g.node[:color] = "#ddaa66"
g.node[:style] = "filled"
g.node[:shape] = "box"
g.node[:penwidth] = "1"
g.node[:fontname] = "Trebuchet MS"
g.node[:fontsize] = "8"
g.node[:fillcolor]= "#ffeecc"
g.node[:fontcolor]= "#000000"
g.node[:margin] = "0.05"
g.edge[:color] = "#999999"
g.edge[:weight] = "1"
g.edge[:fontsize] = "6"
g.edge[:fontcolor]= "#444444"
g.edge[:fontname] = "Verdana"
nodesMap = {}
@links = Array.new
EntityDef.all.each do |entityDef|
attrs = '';
entityDef.attrDefs.each do |attrDef|
if attrDef.dataType == "selectOneInList" || attrDef.dataType == "checkList" || attrDef.dataType == "openList"
attrs += '+ '+attrDef.label+' : '+attrDef.dataType+'\l'
childs =''
attrDef.attrDefChilds.each do |child|
childs += '+ '+child.label+' : '+child.childEntityDef.entity_def_name+' \n'
link = [child.childEntityDef.entity_def_name, attrDef.label+'_enum']
link2 = [attrDef.label+'_enum',child.childEntityDef.entity_def_name]
if ( (@links.include?(link) == false) and (@links.include?(link2) == false) )
@links.push(link)
end
end
enum = g.add_nodes( attrDef.label+'_enum', "shape" => "record", "label" => '{enumeration('+attrDef.label+')|'+childs+'}' )
link = [attrDef.label+'_enum',entityDef.entity_def_name]
link2 = [entityDef.entity_def_name,attrDef.label+'_enum']
if ( (@links.include?(link) == false) and (@links.include?(link2) == false) ) @links.push(link)
end
elsif attrDef.dataType == "entityDef"
if attrDef.childEntityDef != nil
link = [attrDef.childEntityDef.entity_def_name,entityDef.entity_def_name]
link2 = [entityDef.entity_def_name,attrDef.childEntityDef.entity_def_name]
if ( (@links.include?(link) == false) and (@links.include?(link2) == false) )
@links.push([attrDef.childEntityDef.entity_def_name,entityDef.entity_def_name])
end
attrs += '+ '+attrDef.label+' : '+attrDef.childEntityDef.label+'\l'
else
attrs += '+ '+attrDef.label+' : null\l'
end
else
attrs += '+ '+attrDef.label+' : '+attrDef.dataType+'\l'
end
end
nodesMap[entityDef.entity_def_name] = g.add_nodes( entityDef.entity_def_name, "shape" => "record", "label" => '{'+(entityDef.label|| "")+'|'+attrs+'|}' )
end
@links.each do |link|
edge = g.add_edges( link[0], link[1], "arrowhead" => "none" )
end
g.output( :png => uri )
end
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