controllers.js

var bookingScreenApp = angular.module('bookingScreenApp');

bookingScreenApp.controller('BookingCtrl', function($scope, currentBooking) {
    $scope.currentBooking = currentBooking;
    $scope.getBookingData = function () { return currentBooking.bookingData };
    $scope.getStart = function () { return currentBooking.start };
    $scope.getEnd = function () { return currentBooking.end };
    $scope.getActualDuration = function () { return ((currentBooking.end - currentBooking.start)/86400000) - 2 };
});

bookingScreenApp.controller('TimeBlockCtrl', function ($scope) {
    $scope.dateRange = function(getStart, getEnd){
        var input = [];
        var start = getStart();
        var end = getEnd();

        if (start && end) {
            //Clone the date objects before we iterate
            start = new Date(start.valueOf());
            end = new Date(end.valueOf());
            for (var i=start; i<=end; i.setDate(i.getDate() + 1)) {
                input.push(i.getDate()+'/'+ (i.getMonth() + 1));
            }
            return input;
        }
    };
});

bookingScreenApp.controller('StockListCtrl', function($scope, inventory, currentBooking) {
        $scope.inventory = inventory;
        inventory.currentBooking = currentBooking;
    }
);

bookingScreenApp.controller('NewBookingCtrl', function($scope, NewBooking, currentBooking) {
        $scope.newBookingData = {};
        $scope.createNewBooking = function() {
            NewBooking.create($scope.newBookingData, currentBooking.setFromId);
        };
    }
);

services.js

var bookingScreenApp = angular.module('bookingScreenApp');

bookingScreenApp.factory('NewBooking', function ($http) {
    return {
        newBookingData: null,
        create: function(newBookingData, setBooking) {
            return $http.post('/api/create-booking/', newBookingData)
                .success(function(data){
                    setBooking(data.id);
                })
                .error(function(){
                    alert("error creating new booking");
                });
        }
    }
});

bookingScreenApp.factory('currentBooking', function ($http) {
    var currentBooking = {
        bookingId: null,
        bookingData: null,
        start: null,
        end: null,
        setFromData: function(data) {
            var _this = this;
            var bookingData = data;
            var start = new Date(bookingData.leaves_stock);
            var end = new Date(bookingData.returns_to_stock);
            start.setDate(start.getDate() - 1);
            end.setDate(end.getDate() + 1);
            _this.start = start;
            _this.end = end;
            _this.bookingData = bookingData;
        },
        setFromId: function (bookingId) {
            var _this = this;
            if (bookingId === this.bookingId) return;
            this.bookingId = bookingId;
            console.log('getting');
            console.log(this);
            console.log(this.bookingId);
            $http.get('/api/booking/' + bookingId)
            .success(function(data){
                currentBooking.setFromData(data);
            });
        },
        save: function() {
            console.log('saving');
            console.log(this);
            console.log(this.bookingId);
            var bookingDataFlat = {};
            for (var k in this.bookingData) {
                var v = this.bookingData[k];
                if (typeof v === 'object' && v != null) {
                    bookingDataFlat[k] = v.id;
                } else {
                    bookingDataFlat[k] = v;
                }
            }
            $http.put('/api/booking/' + this.bookingId + '/', bookingDataFlat)
                .success(function(){

                })
                .error(function(){
                    alert("error saving");
                });
        }
    };
    // Initialised from variable preloaded in page
    currentBooking.setFromId(BOOKING_ID);
    return currentBooking;
});

bookingScreenApp.factory('inventory', function ($http) {
    return {
        items: [],
        currentBooking: null,
        toggleChildren: function(stockItem) {
            if (stockItem.type=="tracked") {
                var self = this;
                stockItem.showChild = !stockItem.showChild;
                if (stockItem.showChild) {
                    angular.forEach(stockItem.stockitems, function(tracked_child){
                        $http.get(
                                '/api/stock_item/' + tracked_child.id + '/get_segments_for_period/', {
                                    params: {
                                        start: self.currentBooking.start.toISOString().replace('Z',''),
                                        end: self.currentBooking.end.toISOString().replace('Z','')
                                    }
                                }
                            )
                            .success(function (data) {
                                tracked_child.segments = data.segments;
                            });
                        });
                    }
            }
        },
        AddToBooking: function(stockItem) {
            var self = this;
            $http.put(
                    '/api/stock_item/' + stockItem.id + '/add_to_booking/' + self.currentBooking.bookingId, {
                    }
                )
                .success(function (data) {
                    stockItem.segments = data.segments;
                    self.currentBooking.setFromData(data.booking_data);
                })
                .error(function(data){
                    alert('Error in AddToBooking');
                });
        },

        search: function (query) {
            var self = this;
            self.items = [];
            $http.get('/api/item_model/?search=' + query).success(function(data) {
                data.results.forEach(function (item_model) {
                    item_model.showChild = false;
                    self.items.push(item_model);
                    $http.get(
                        '/api/item_model/' + item_model.id + '/get_segments_for_period', {
                            params: {
                                start: self.currentBooking.start.toISOString().replace('Z',''),
                                end: self.currentBooking.end.toISOString().replace('Z','')
                            }
                        }
                    )
                    .success(function (data) {
                        item_model.segments = data.segments;
                    });
                });
            });
        },
        clearSearch: function(e) {
            this.items = [];
            e.search_term='';
        }
    };
});