In a nutshell I want a select box populated with a domain with the option values being the id/primary key, and when the select is changed, I'd like the corresponding records' bound values updated. You can see bureau_id() here does change but not name or personal_area of the same record. I feel like there is an observable here but I used map() and I can't figure out how to tap into it. In the view model I also thought the id parameter might somehow help with this.
I'm also wondering if there's a better method of using domains to control the editing of items in the data by id and updating domain fields related to that id. The thought was to display a select when a value is clicked and return to the text after a selection is made.
$(function() {
$.views.viewModels({
Root: {
getters: [
{
getter: "bureaus",
type: "Bureau"
}
]
},
Bureau: {
id: "bureau_id",
getters: ["bureau_id","name","personal_area"]
}
});
data = {
bureaus: [
{
"bureau_id":40,
"name":"Bureau of Emergency Communications",
"personal_area":1200
},
{
"bureau_id":30,
"name":"Office of the City Attorney",
"personal_area":1090
}
]
}
domains = {
"bureau": [
{
"bureau_id":41,
"name":"Bureau of Development Services",
"personal_area":1210
},
{
"bureau_id":40,
"name":"Bureau of Emergency Communications",
"personal_area":1200
},
{
"bureau_id":39,
"name":"Bureau of Emergency Management",
"personal_area":1190
},
{
"bureau_id":22,
"name":"Bureau of Environmental Services",
"personal_area":1010
},
{
"bureau_id":42,
"name":"Bureau of Fire and Police Disability and Retirement Fund",
"personal_area":1230
},
{
"bureau_id":43,
"name":"Bureau of Human Resources",
"personal_area":1240
},
{
"bureau_id":45,
"name":"Bureau of Internal Business Services",
"personal_area":1260
},
{
"bureau_id":36,
"name":"Bureau of Parks and Recreation",
"personal_area":1160
},
{
"bureau_id":34,
"name":"Bureau of Planning and Sustainability",
"personal_area":1140
},
{
"bureau_id":46,
"name":"Bureau of Revenue & Financial Services",
"personal_area":1275
},
{
"bureau_id":44,
"name":"Bureau of Technology Services",
"personal_area":1250
},
{
"bureau_id":49,
"name":"City Budget Office",
"personal_area":1320
},
{
"bureau_id":31,
"name":"Office of City Auditor Mary Hull Caballero",
"personal_area":1100
},
{
"bureau_id":26,
"name":"Office of Commissioner Amanda Fritz",
"personal_area":1050
},
{
"bureau_id":29,
"name":"Office of Commissioner Chloe Eudaly",
"personal_area":1080
},
{
"bureau_id":28,
"name":"Office of Commissioner Dan Saltzman",
"personal_area":1070
},
{
"bureau_id":27,
"name":"Office of Commissioner Nick Fish",
"personal_area":1060
},
{
"bureau_id":37,
"name":"Office of Community & Civic Life",
"personal_area":1170
},
{
"bureau_id":48,
"name":"Office of Equity and Human Rights",
"personal_area":1310
},
{
"bureau_id":24,
"name":"Office of Government Relations",
"personal_area":1030
},
{
"bureau_id":47,
"name":"Office of Management and Finance",
"personal_area":1290
},
{
"bureau_id":38,
"name":"Office of Mayor Ted Wheeler",
"personal_area":1180
},
{
"bureau_id":30,
"name":"Office of the City Attorney",
"personal_area":1090
},
{
"bureau_id":35,
"name":"Police Bureau",
"personal_area":1150
},
{
"bureau_id":32,
"name":"Portland Bureau of Transportation",
"personal_area":1120
},
{
"bureau_id":23,
"name":"Portland Fire & Rescue",
"personal_area":1020
},
{
"bureau_id":25,
"name":"Portland Housing Bureau",
"personal_area":1040
},
{
"bureau_id":33,
"name":"Portland Water Bureau",
"personal_area":1130
}
]
};
let vm = $.views.viewModels.Root.map(data);
$.templates('#root-tmpl').link('#content', vm, domains);
});<!doctype html>
<html>
<head>
<script src="https://code.jquery.com/jquery-3.3.1.min.js"></script>
<script src="https://www.jsviews.com/download/jsviews.min.js"></script>
<script src="https://code.jquery.com/ui/1.12.1/jquery-ui.min.js"></script>
<link href="https://code.jquery.com/ui/1.12.1/themes/base/jquery-ui.css" rel="stylesheet">
<script src="https://www.jsviews.com/download/sample-tag-controls/jsviews-jqueryui-widgets.min.js"></script>
<script id="root-tmpl" type="text/x-jsrender">
<ul>
{^{for bureaus() tmpl="#bureau-tmpl"}}
{{/for}}
</ul>
</script>
<script id="bureau-tmpl" type="text/x-jsrender">
<li>
{^{>name()}} ({^{>personal_area()}}) {^{>bureau_id()}}
{^{selectmenu bureau_id() name="bureau_id" class="bureau-select"}}
{^{for ~bureau}}
<option data-link="value{:bureau_id}">{^{>name}} ({^{>personal_area}})</option>
{{/for}}
{{/selectmenu}}
</li>
</script>
</head>
<body>
<div id="content"></div>
</body>
</html>There are a number of issues with your current version. One is that you are cloning data items from domains.bureau[n] to data.bureaus[n]. If you choose a different drop-down item, then you would need the selected item to somehow get cloned to the data.bureau. It looks like you would also easily get some data integrity issues in a real situation where values could change (i.e. with editing, server data, etc.)
Anyway, here is a suggested alternative design. data.bureaus is renamed to data.selected, and has only the selected_id which is a lookup to the corresponding bureau_id.
The domains and current data.selected are all mapped to ViewModel instances. Note the line:
getSelectedBureau.depends = "selected_id";
which ensures that when selected_id changes, the following also updates:
{^{>selectedBureau()^name()}} ({^{>selectedBureau()^personal_area()}}) ...
$(function() {
$.views.viewModels({
Root: {
getters: [
{getter: "selected", type: "SelectedBureau"},
{getter: "bureaus", type: "Bureau"}
]
},
SelectedBureau: {
getters: ["selected_id"],
extend: {
selectedBureau: getSelectedBureau,
bureaus: function() {
return vm.bureaus();
}
}
},
Bureau: {
id: "bureau_id",
getters: ["bureau_id","name","personal_area"]
}
});
function getSelectedBureau() { // lookup to find the corresonding bureau VM
let bureaus = vm.bureaus(),
l = bureaus.length;
while (l--) {
if (this.selected_id() === "" + bureaus[l].bureau_id()) {
return bureaus[l];
}
}
}
getSelectedBureau.depends = "selected_id"; // So selectedBureau() updates when selected_id changes
let data = {
selected: [
{
"selected_id":"40"
},
{
"selected_id":"30"
}
],
"bureaus": [
{
"bureau_id":41,
"name":"Bureau of Development Services",
"personal_area":1210
},
{
"bureau_id":40,
"name":"Bureau of Emergency Communications",
"personal_area":1200
},
{
"bureau_id":49,
"name":"City Budget Office",
"personal_area":1320
},
{
"bureau_id":31,
"name":"Office of City Auditor Mary Hull Caballero",
"personal_area":1100
},
{
"bureau_id":30,
"name":"Office of the City Attorney",
"personal_area":1090
}
]
};
let vm = $.views.viewModels.Root.map(data);
$.templates('#root-tmpl').link('#content', vm);
});<!doctype html>
<html>
<head>
<script src="https://code.jquery.com/jquery-3.3.1.min.js"></script>
<script src="https://www.jsviews.com/download/jsviews.min.js"></script>
<script src="https://code.jquery.com/ui/1.12.1/jquery-ui.min.js"></script>
<link href="https://code.jquery.com/ui/1.12.1/themes/base/jquery-ui.css" rel="stylesheet">
<script src="https://www.jsviews.com/download/sample-tag-controls/jsviews-jqueryui-widgets.min.js"></script>
<script id="root-tmpl" type="text/x-jsrender">
<ul>
{^{for selected() tmpl="#bureau-tmpl"/}}
</ul>
</script>
<script id="bureau-tmpl" type="text/x-jsrender">
<li>
{^{>selectedBureau()^name()}} ({^{>selectedBureau()^personal_area()}}) {^{>selected_id()}}
{^{selectmenu selected_id() name="bureau_id" class="bureau-select"}}
{^{for bureaus()}}
<option value="{{:bureau_id()}}">{{>name()}} ({{>personal_area()}})</option>
{{/for}}
{{/selectmenu}}
</li>
</script>
</head>
<body>
<div id="content"></div>
</body>
</html>