Guiness is one of my favorites, mix it together with Newcastle for a delicious blend, The Black Castle!
On Jul 15, 6:24 pm, Ron Newman <[email protected]> wrote: > Guinness or Stout? > > > > On Wed, Jul 15, 2009 at 4:58 PM, Matt Foster <[email protected]> wrote: > > > Hmm, well you'd have to do a little extra filtering but no reason this > > isn't possible. > > > assuming "obj" is your main structure you just posted do something > > like this... > > > var edgeArr = $H(obj.nodes).keys().findAll(function(itr){ return ! > > (obj.nodes[itr].edges instanceof Array);}).collect(function(key) > > { return obj.nodes[key]; }); > > > edgeArr is now an array of all objects that have a valid edges > > structure. > > > ps. You owe me one pint of beer. > > > On Jul 14, 10:47 pm, ronman <[email protected]> wrote: > > > Yes, that's pretty close. attr is an object with properties, and one > > > of those, attr.edges, is a nested object with its own nested sub- > > > objects. All these properties and objects are constructed by evalJson > > > () and then put in a $H() in a manner very similar to what you just > > > described. I've copied a sample of the structure below. > > > > I was assuming that putting this whole thing within $A() would make > > > the individual members (properties and objects) iterable, but perhaps > > > I'm misunderstanding and instead every property and sub-object must be > > > iterable (that is, understand the [] operator and have a length() > > > method). > > > > Unfortunately, when the sub-object "edges" is empty, then running each > > > () on the hash that contains it fails. > > > arr.each(function(edgeProperty){ > > > // fails if "arr" is an empty Hash. works if "arr" is an empty > > > Array. fails if "arr" is a filled Array. > > > > Notice that the first "edges" is empty and the second one has one > > > member: "Brainwriting". > > > > from json: > > > { > > > "nodes": { > > > "Brain Writing ": { > > > "label": "BRAIN\\nWRITING ", > > > "height": "0.50", > > > "width": "0.83", > > > "fontsize": "10.00", > > > "fontcolor": "white", > > > "pos": [ > > > 570, > > > 213 > > > ], > > > "id": "1695", > > > "onmousedown": "startdrag('1695')", > > > "length": 1, > > > "edges": [ > > > ] > > > }, > > > "A Perfect Brainstorm ": { > > > "label": "A PERFECT\\nBRAINSTORM\\n", > > > "height": "0.50", > > > "width": "1.11", > > > "fontsize": "10.00", > > > "fontcolor": "white", > > > "pos": [ > > > 326, > > > 167 > > > ], > > > "class": "node", > > > "onmousedown": "startdrag('1701')", > > > "length": 1, > > > "edges": { > > > "Brainwriting ": { > > > "color": "black", > > > "penwidth": "0.5", > > > "fontname": "Arial", > > > "URL": "javascript:void(predwin(2179))", > > > "label": "• ", > > > } > > > > Ron > > > blog.ideatree.us > > > > On Jul 14, 4:47 pm, Matt Foster <[email protected]> wrote: > > > > > Oh I get it now, > > > > > attr.edges isn't an array of edge objects, its just an object with a > > > > series of properties that define an edge to your shape? > > > > > If that is the case and you wish to iterate over the properties and > > > > execute set on them explicitly, you could do something like... > > > > > var arr = $H(attr.edges).keys(); > > > > > arr.each(function(edgeProperty){ > > > > > this[edgeProperty].set(...); > > > > > }, attr.edges); > > > > > On Jul 14, 3:09 pm, ronman <[email protected]> wrote: > > > > > > Here's what I'm doing now: > > > > > $A(attr.edges).each(function(edge) { > > > > > edge.set(id, new GraphEdge(cv, id, edge)); > > > > > > }, this); > > > > > > Same result. The iterator.length shows zero and the inside of the > > > > > loop never executes. But the iterator is (correctly, I think) > > 'Object > > > > > Brainwriting =Object' > > > > > > Just casting around, I also tried taking off the binding to 'this' at > > > > > the end, doesn't help. > > > > > > As before, I'm not getting why anything whatsoever that's in an array > > > > > shouldn't automatically return length > 0. > > > > > > On Jul 14, 1:47 pm, Matt Foster <[email protected]> wrote: > > > > > > > > $A(attr.edges).each(function(edge) { > > > > > > > this.edge.set(id, new GraphEdge(cv, id, edge)); > > > > > > > }, this); > > > > > > > edge is your variable, why bother trying to set function ownership? > > > > > > The function is sent the parameter it needs to act upon. Just > > remove > > > > > > "this" from your "this.edge..." line and you should be good. > > > > > > > -- > > > > > > >http://positionabsolute.net > > > > > > > On Jul 14, 2:28 pm, ronman <[email protected]> wrote: > > > > > > > > This is a newbie question, but I learn a lot every time I ask. > > > > > > > > Why do some objects return a zero length? > > > > > > > > I'm doing Array.each. In the array at this particular time is a > > > > > > > single object. Firebug describes that object as > > > > > > > > Object Brainwriting color=black penwidth=0.5 fontname=Arial > > > > > > > > and I iterate through the array this way: > > > > > > > $A(attr.edges).each(function(edge) { > > > > > > > this.edge.set(id, new GraphEdge(cv, id, edge)); > > > > > > > }, this); > > > > > > > > But in Prototype's each method the 'edge' iterator (the > > Brainwriting > > > > > > > Object), returns zero length: > > > > > > > function $A(iterable) { > > > > > > > if (!iterable) return []; > > > > > > > if (iterable.toArray) return iterable.toArray(); > > > > > > > var length = iterable.length || 0, results = new Array(length); > > > > > > > // LENGTH NOW IS ZERO > > > > > > > while (length--) results[length] = iterable[length]; > > > > > > > return results; > > > > > > > > } > > > > > > > > Maybe the Brainwriting Object is not iterable, but I would expect > > $A > > > > > > > (attr.edges) to have made it so before my call to each(). > > > > > > > > Surely I'm not expected to assign a length attribute to objects > > myself > > > > > > > - just lilke 'penwidth' and 'color' were assigned - in order to > > make > > > > > > > Array.each() work on objects. Why doesn't the Object.length > > return > > > > > > > non-zero when any kind of Object is instantiated? > > > > > > > > I'm using Firefox 3.0.10. > > -- > Ron Newman > blog.ideatree.uswww.ideatree.us --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Prototype & script.aculo.us" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/prototype-scriptaculous?hl=en -~----------~----~----~----~------~----~------~--~---
