javascript - store $http GET promise object locally -

-

i've been scratching head trying figure out how implement simple data update on graph due lack of angular service knowledge. trying make 1 request , store json object locally on controller can have (1) original json render original chart , (2) modified json based on user input (always modifies original json) render updated chart. here controller:

`

angular.module('scattchartapp') .controller('chartctrl', function($scope, $http, $cachefactory) {    $http.get('chartconfig.json').success(function(response) {     $scope.options = response.options;     $scope.data = response.data;     $scope.initdata = angular.copy($scope.data);   });      $scope.update = function(user){     var a, b, c, d, e;     = user.a; b = user.b; c = user.c; d = user.d; e = user.e;     var data = $scope.data;     if(a !== "" && b !== "" && c !== "" && d !== "" && e !== ""){       for(var = 0; i<$scope.data.length; i++){           for(var j = 0; j<$scope.data[i].values.length; j++){               var x = $scope.data[i].values[j].x;               var y = $scope.data[i].values[j].y;               var z = $scope.data[i].values[j].size;               data[i].values[j].x = a*x + b*y;               data[i].values[j].y = c*x + d*y;               data[i].values[j].size = e*e*z;           }       }       $scope.$apply();     }   };    $scope.reset = function(){      $scope.user = {};     $scope.data = angular.copy($scope.initdata);     $scope.$apply();   };   });`

this plunker (which if make proper input , press update scale accordingly 1 time , rest won't work): http://plnkr.co/edit/n4bdl7lyoylw5twbra6g?p=preview

removing $scope.$apply() should solve problem.

since functions using here come angularjs framework, don't have use $scope.$apply(). in fact it's making application crash. that's why it's working once.

for more informations $scope.$apply()angulardoc

edit: it's possible need set plugin option refreshdataonly false.


Comments

Post a Comment

Popular posts from this blog

python - pip install -U PySide error -

-
does know how avoid following error when running pip install -u pyside per official website instructions here: https://pypi.python.org/pypi/pyside/#installing-pyside-on-a-mac-os-x-system note have done brew install qt successfully. you using pip version 7.0.3, version 7.1.2 available. should consider upgrading via 'pip install --upgrade pip' command. collecting pyside using cached pyside-1.2.4.tar.gz installing collected packages: pyside running setup.py install pyside complete output command /applications/anaconda/bin/python -c "import setuptools, tokenize;__file__='/private/var/folders/dy/ttgqhqqx3g9bsbsnqnxsk2z80000gq/t/pip-build-cpxemt/pyside/setup.py';exec(compile(getattr(tokenize, 'open', open)(__file__).read().replace('\r\n', '\n'), __file__, 'exec'))" install --record /var/folders/dy/ttgqhqqx3g9bsbsnqnxsk2z80000gq/t/pip-0r7hri-record/install-record.txt --single-version-externally-managed --compile: ...
Read more

arrays - C++ error: a brace-enclosed initializer is not allowed here before ‘{’ token -

-
simple question: i'm trying initialize array within c++ class declaration: using namespace std; #include <string> class myclass{ public: string myarray[] = {"a","b","c"}; }; and i'm getting error: error: brace-enclosed initializer not allowed here before ‘{’ token no, without complied c++11 compiler, cannot initialize member array in declaration. have initialize array member in constructor. , don't use open array if know number of elements initialize array.
Read more

cytoscape.js - How to add nodes to Dagre layout with Cytoscape -

-
i trying add nodes dagre graph through cityscape.js. problem nodes not painted. code have: cy.add({ group: "nodes", data: { id:"n0",name:"n0",weight: 75 }, }); $.ajax(url).done(function(jsontree){ var newnodes=[]; for(var i=1;i<6;i++){ //var child = jsontree.result[i]; newnodes.push( { group: "nodes", data: { id: "n"+i, name:"n"+i}}, { group: "edges", data: { id: "e"+i, source: "n0", target: "n"+i } } ); } cy.add(newnodes); any ideas? have used loaded function reload graph not work. not know if have use specific function reload graph. thank in advance. you need add positions new nodes. cytoscape.js docs : it important note positions of newly added nodes must defined when calling cy.add(). nodes can not placed in graph without valid position — otherwise not displayed. yo...
Read more