TypeError: datastore.getRootCollection is not a function - dojo

Question

I assumed a dstore that was created using dmodel was still a dstore and inherited all the dstore functionality. So there's a method listed called getRootCollection but when i try to run this method on the store it fails with an error (no such function)
Here is my code
<script>
require(
[
'dojo/_base/declare',
'dstore/Memory',
'dmodel/extensions/jsonSchema',
'dmodel/validators/StringValidator',
'dmodel/store/Validating',
"dmodel/Model"
],
function (declare, Memory, jsonSchema, StringValidator, Validating, Model) {
var vMem = (declare([Memory, Validating]))({
Model: jsonSchema(
{
"$schema": "http://json-schema.org/draft-04/schema",
"description": "my schema",
"type": "object",
"properties": {
"page": {
"type": "object",
"properties": {
"detailsCanvas": {
"description": "test value",
"type": "object",
"$ref": "#/definitions/details"
}
}
},
"elements": {
"type": "array",
"items": {
"title": "Element",
"type": "object",
"properties": {
"id": {
"type": "string"
},
"positionX": {
"description": "The X coordinate",
"type": "number"
},
"elementSpecificProperties": {
"type": "object",
"oneOf": [
{ "$ref": "#/definitions/label" }
]
}
}
}
}
},
"definitions": {
"details": {
"type": "object",
"properties": {
"height": {
"type": "string"
}
}
},
"label": {
"type": "object",
"properties": {
"value": {
"type": "string"
}
}
}
}
}
)
});
vMem.setData(
{
"page": {
"detailsCanvas": {
"height": "100px"
}
},
"elements": [
{
"id": "1",
"positionX": 20,
"elementSpecificProperties": {
"value": "value_1"
}
},
{
"id": "2",
"positionX": 5,
"elementSpecificProperties": {
"value": "value_2"
}
}
]
});
var blah = vMem.getRootCollection(); //type error - getRootCollection is not a function
});
</script>

Answer 1

getRootCollection() is part of the Tree model of dstore. You only mixin the dstore/Memory. So that is why you get that error. Checkout the documentation of dstore for more information.