I've been trying for a few days now to get the Breeze 1.4.9 to work with a rails back end in a different manner than the Breeze Ruby SPA sample. I would rather send bulk save changes instead of trying to send RESTful calls to the server on every entity change. To that end, I've written a rails controller/model methods that will parse out all the different entities in a Breeze SaveChanges POST and act accordingly. Everything works great except that the response to SaveChanges POST doesn't seem to satisfy all the checks for Breeze and EntityManager.hasChanges() is still true even after the response is processed successfully.
Here's a typical cycle: Breeze requests my hand crafted metadata and parses it fine:
{
"metadataVersion": "1.0.5",
"namingConvention": "rubyNamingConvention",
"localQueryComparisonOptions": "caseInsensitiveSQL",
"dataServices": [
{
"serviceName": "breeze\/Breeze\/",
"hasServerMetadata": true,
"jsonResultsAdapter": "webApi_default",
"useJsonp": false
}
],
"structuralTypes": [
{
"shortName": "VarianceReason",
"namespace": "Icon",
"autoGeneratedKeyType": "Identity",
"defaultResourceName": "VarianceReasons",
"dataProperties": [
{
"name": "id",
"dataType": "Int32",
"isNullable": false,
"defaultValue": 0,
"isPartOfKey": true,
"validators": [
{
"name": "required"
},
{
"name": "int32"
}
]
},
{
"name": "name",
"dataType": "String",
"isNullable": false,
"defaultValue": "",
"maxLength": 256,
"validators": [
{
"name": "required"
},
{
"maxLength": 256,
"name": "maxLength"
}
]
},
{
"name": "createdAt",
"dataType": "DateTime",
"isNullable": false,
"defaultValue": "1900-01-01T08:00:00.000Z",
"validators": [
{
"name": "required"
},
{
"name": "date"
}
]
},
{
"name": "updatedAt",
"dataType": "DateTime",
"isNullable": false,
"defaultValue": "1900-01-01T08:00:00.000Z",
"validators": [
{
"name": "required"
},
{
"name": "date"
}
]
}
]
}
],
"resourceEntityTypeMap": {
"VarianceReasons": "VarianceReason:#Icon"
}
}
I make an entity change in Breeze and it POSTs the below to rails when I call em.SaveChanges():
{
"entities":[
{
"id":-1,
"name":"anyuthingasd",
"created_at":"1900-01-01T08:00:00.000Z",
"updated_at":"1900-01-01T08:00:00.000Z",
"entityAspect":{
"entityTypeName":"VarianceReason:#Icon",
"defaultResourceName":"VarianceReasons",
"entityState":"Added",
"originalValuesMap":{
},
"autoGeneratedKey":{
"propertyName":"id",
"autoGeneratedKeyType":"Identity"
}
}
}
],
"saveOptions":{
}
}
Rails then responds with:
{
"KeyMappings":[
{
"EntityTypeName":"VarianceReason:#Icon",
"TempValue":-1,
"RealValue":16
}
],
"Entities":[
{
"id":16,
"name":"anyuthingasd",
"created_at":"2014-05-02T14:21:24.221Z",
"updated_at":"2014-05-02T14:21:24.221Z",
"Entity":null
}
]
}
Breeze then merges in the new id key mapping but doesn't clear the cache, so next time I make another entity change it still has the first change which has already persisted to the server and the new change. Can anyone tell me what I'm not responding with from the rails side that makes Breeze EntityManager not satisfied? I'm trying to trace through the 15k lines of code but can't say I'm a JS ninja.
