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|
//>>built
define("dojox/dtl/contrib/data", [
"dojo/_base/kernel",
"dojo/_base/lang",
"../_base",
"dojo/_base/array"
], function(kernel,lang,dd,array){
/*=====
dd = dojox.dtl;
=====*/
lang.getObject("dojox.dtl.contrib.data", true);
var ddcd = dd.contrib.data;
var first = true;
ddcd._BoundItem = lang.extend(function(item, store){
this.item = item;
this.store = store;
},
{
get: function(key){
var store = this.store;
var item = this.item;
if(key == "getLabel"){
return store.getLabel(item);
}else if(key == "getAttributes"){
return store.getAttributes(item);
}else if(key == "getIdentity"){
if(store.getIdentity){
return store.getIdentity(item);
}
return "Store has no identity API";
}else{
if(!store.hasAttribute(item, key)){
if(key.slice(-1) == "s"){
if(first){
first = false;
kernel.deprecated("You no longer need an extra s to call getValues, it can be figured out automatically");
}
key = key.slice(0, -1);
}
if(!store.hasAttribute(item, key)){
return;
}
}
var values = store.getValues(item, key);
if(!values){
return;
}
if(!lang.isArray(values)){
return new ddcd._BoundItem(values, store);
}
values = array.map(values, function(value){
if(lang.isObject(value) && store.isItem(value)){
return new ddcd._BoundItem(value, store);
}
return value;
});
values.get = ddcd._get;
return values;
}
}
});
ddcd._BoundItem.prototype.get.safe = true;
ddcd.BindDataNode = lang.extend(function(items, query, store, alias){
this.items = items && new dd._Filter(items);
this.query = query && new dd._Filter(query);
this.store = new dd._Filter(store);
this.alias = alias;
},
{
render: function(context, buffer){
var items = this.items && this.items.resolve(context);
var query = this.query && this.query.resolve(context);
var store = this.store.resolve(context);
if(!store || !store.getFeatures){
throw new Error("data_bind didn't receive a store");
}
if(query){
var sync = false;
store.fetch({
query: query,
sync: true,
scope: this,
onComplete: function(it){
sync = true;
items = it;
}
});
if(!sync){
throw new Error("The bind_data tag only works with a query if the store executed synchronously");
}
}
var list = [];
if(items){
for(var i = 0, item; item = items[i]; i++){
list.push(new ddcd._BoundItem(item, store));
}
}
context[this.alias] = list;
return buffer;
},
unrender: function(context, buffer){
return buffer;
},
clone: function(){
return this;
}
});
lang.mixin(ddcd, {
_get: function(key){
if(this.length){
return (this[0] instanceof ddcd._BoundItem) ? this[0].get(key) : this[0][key];
}
},
bind_data: function(parser, token){
// summary: Turns a list of data store items into DTL compatible items
// example:
// `contextItems` and `contextStore` should be an item list
// and a data store that get assigned to `newVariable`
//
// | {% bind_data contextItems to contextStore as newVariable %}
var parts = token.contents.split();
if(parts[2] != 'to' || parts[4] != 'as' || !parts[5]){
throw new Error("data_bind expects the format: 'data_bind items to store as varName'");
}
return new ddcd.BindDataNode(parts[1], null, parts[3], parts[5]);
},
bind_query: function(parser, token){
// summary: Queries a data store and makes the returned items DTL compatible
// example:
// You can only use this with data stores that work in a synchronous
// way (meaning that `onComplete` is fired during the `fetch` call).
// A `sync` flag is sent to the fetch call so that stores that usually
// work asynchronously make themselves syncrhonous if possible.
// | {% bind_query contextQuery to contextStore as newVariable %}
var parts = token.contents.split();
if(parts[2] != 'to' || parts[4] != 'as' || !parts[5]){
throw new Error("data_bind expects the format: 'bind_query query to store as varName'");
}
return new ddcd.BindDataNode(null, parts[1], parts[3], parts[5]);
}
});
ddcd._get.safe = true;
dd.register.tags("dojox.dtl.contrib", {
"data": ["bind_data", "bind_query"]
});
return dojox.dtl.contrib.data;
});
|
