Pass parameter from controller to services in angularjs - angularjs

Question

How can i have one service or factory receiving two parameters from many controllers?
One parameter for the url, other for the file name to be stored on the filesystem.
I will have many controllers using this service, each passing his own url and filenames that reads the url and generate a pdf.
I will always store the last downloaded pdf providing an "open last pdf" button, that will use the name parameter.
I will have a "generate new pdf" button coming from the url.
I do follow this tutorial https://blog.nraboy.com/2014/09/manage-files-in-android-and-ios-using-ionicframework/ and everything works fine.
I am using cordova file-transfer and inappbrowser cordova plugins
These sections will receive the parameters :
dirEntry.getFile("pdf-number-1.pdf",
ft.download(encodeURI("http://www.someservice.com"),p,
My attempt always trigger the message unknow pdfService provider
Wich concepts of angular i am missing ? How can i fix it ?
In services.js i have :
.service('pdfService', function($scope, $ionicLoading){
if( window.cordova && window.cordova.InAppBrowser ){
window.open = window.cordova.InAppBrowser.open;
console.log("InAppBrowser available");
} else {
console.log("InAppBrowser not available");
}
this.download = function() {
$ionicLoading.show({
template: 'Loading...'
});
window.requestFileSystem(LocalFileSystem.PERSISTENT, 0, function(fs) {
fs.root.getDirectory("ExampleProject",{create: true},
function(dirEntry) {
dirEntry.getFile(
"pdf-number-1.pdf",
{
create: true,
exclusive: false
},
function gotFileEntry(fe) {
var p = fe.toURL();
fe.remove();
ft = new FileTransfer();
ft.download(
encodeURI("http://www.someservice.com"),
p,
function(entry) {
$ionicLoading.hide();
$scope.imgFile = entry.toURL();
},
function(error) {
$ionicLoading.hide();
alert("Download Error Source -> " + error.source);
},
false,
null
);
},
function() {
$ionicLoading.hide();
console.log("Get file failed");
}
);
}
);
},
function() {
$ionicLoading.hide();
console.log("Request for filesystem failed");
});
}
this.load = function() {
$ionicLoading.show({
template: 'Loading...'
});
window.requestFileSystem(LocalFileSystem.PERSISTENT, 0, function(fs) {
fs.root.getDirectory(
"ExampleProject",
{
create: false
},
function(dirEntry) {
dirEntry.getFile(
"pdf-number-1.pdf",
{
create: false,
exclusive: false
},
function gotFileEntry(fe) {
$ionicLoading.hide();
$scope.imgFile = fe.toURL();
alert(fe.toURL());
window.open(fe.toURL(), '_system', 'location=no,toolbar=yes,closebuttoncaption=Close PDF,enableViewportScale=yes');
},
function(error) {
$ionicLoading.hide();
console.log("Error getting file");
}
);
}
);
},
function() {
$ionicLoading.hide();
console.log("Error requesting filesystem");
});
}
});
And in the controller :
.controller('SomeCtrl', function($scope, $ionicPopup, pdfService) {
...
pdfService.download = function(url) {
console.log('pdfService download');
}
pdfService.load = function() {
console.log('pdfService load');
}

Answer 1

You will need to inject the service to your controllers and call a function with the two params you want as your arguments.
eg.
.service('pdfService', function(){
var lastUrl;
var lastFileName
return {
createPdf(url, fileName){
//do processing
lastUrl = url;
lastFileName = fileName
},
loadLastPdf(){
//use lastUrl and lastFileName
}
}
}
and in your controller:
.controller('SomeCtrl', function(pdfService) {
pdfService.createPdf('http://example.com', 'file.pdf');
// or pdfService.loadLastPdf();
}
That being said, the error you are reporting means that the DI is unable to find a service with the name pdfService to inject to your controller. This might be because you forgot to include the service.js file to your html as a script tag (if you are doing it like that) or you forgot to add it as a dependency using require (if you are using sth like browserify) or maybe if you are minifying your code since you are not using the minsafe syntax