controller.js

allAttendingDetailsValid: Ember.computed('parents','students', function(){
    var self = this;

    var parents = this.get('parents');
    var students = this.get('students');
    var validationFields;
    var passedValidation = true;

    parents.forEach((parent) => {
      if(parent.get('groupRequestHasUsers').get('length') > 0){
        validationFields = ['city', 'zip', 'state', 'gender', 'firstName', 'lastName', 'dob', 'primaryPhoneNumber'];

        validationFields.forEach(function (item) {
          if (passedValidation) {
            if (Ember.isEmpty(parent.get(item))) {
              passedValidation = false;
            }
          }
        });
      }
    });

    students.forEach((student) => {
      validationFields = ['gender','firstName','lastName','dob'];

      validationFields.forEach(function (item) {
        if (passedValidation) {
          if (Ember.isEmpty(student.get(item))) {
            passedValidation = false;
          }
        }
      });
    });

    return passedValidation;
  }),

  allAttendingConsentsAreValid: Ember.computed('parents', 'students', function(){
    var self = this;

    var parents = this.get('parents');
    var students = this.get('students');

    var subItems = [];

    parents.forEach((parent) => {
      if(parent.get('groupRequestHasUsers').get('length') > 0){
        var promise = this.store.query('user-has-contract', {user_id: parent.get('id'), with: 'all'}).then(function (data) {
          var that = self;
          var contractExists = false;
          data.forEach((userContract) => {
            if (userContract.get('contract.code') === 'Consent') {
              contractExists = true;
            }
          });

          return contractExists;
        });

        subItems.push(promise);
      }
    });

    students.forEach((student) => {
      var promise = this.store.query('user-has-contract', {user_id: student.get('id'), with: 'all'}).then(function (data) {
        var that = self;

        var contractExists = false;
        data.forEach(function (userContract) {
          if (userContract.get('contract.code') === 'Consent') {
            contractExists = true;
          }
        });

        return contractExists;
      });

      subItems.push(promise);
    });

    return Ember.RSVP.all(subItems).then((results) => {
      var rtn = true;
      results.forEach((result) => {
        if(!result){
          rtn = false;
        }
      });

      return rtn;
    });
  }),

  checkConsent: Ember.computed('allAttendingConsentsAreValid', function(k, v){
    if(arguments.length > 1) return v;

    var self = this;

    var promises = [];

    var cPromise = this.get('allAttendingConsentsAreValid').then(function(result){
      return result;
    });
    promises.push(cPromise);

    return Ember.RSVP.all(promises).then((results) => {
      var rtn = true;
      results.forEach((result) => {
        if(!result){
          rtn = false;
        }
      });

      self.set('checkConsent', rtn);
    });
  }),

  allAttendingInsuranceValid: Ember.computed('parents', 'students', function(){
    var self = this;

    var parents = this.get('parents');
    var students = this.get('students');

    var subItems = [];

    parents.forEach((parent) => {
      if(parent.get('groupRequestHasUsers').get('length') > 0){
        var promise = this.store.query('user-has-file', {user_id: parent.get('id'), with: 'all'}).then(function (data) {
          var that = self;
          var insuranceExists = false;
          data.forEach((userFile) => {
            if (userFile.get('file').get('code') === 'Insurance') {
              insuranceExists = true;
            }
          });

          return insuranceExists;
        });

        subItems.push(promise);
      }
    });

    students.forEach((student) => {
      var promise = this.store.query('user-has-file', {user_id: student.get('id'), with: 'all'}).then(function (data) {
        var that = self;

        var insuranceExists = false;
        data.forEach(function (userFile) {
          if (userFile.get('file').get('code') === 'Insurance') {
            insuranceExists = true;
          }
        });

        return insuranceExists;
      });

      subItems.push(promise);
    });

    return Ember.RSVP.all(subItems).then((results) => {
      var rtn = true;
      results.forEach((result) => {
        if(!result){
          rtn = false;
        }
      });

      return rtn;
    });
  }),

  checkInsurance: Ember.computed('allAttendingInsuranceValid', function(k, v){
    if(arguments.length > 1) return v;

    var self = this;

    var promises = [];

    var iPromise = this.get('allAttendingInsuranceValid').then(function(result){
      return result;
    });
    promises.push(iPromise);

    return Ember.RSVP.all(promises).then((results) => {
      var rtn = true;
      results.forEach((result) => {
        if(!result){
          rtn = false;
        }
      });

      self.set('checkInsurance', rtn);
    });
  })

template.hbs

{{#unless isValid}}
  <div class="callout callout-danger">
    <h4>Required Actions Remaining to Complete Registration:</h4>
    {{#unless emergencyContactsAreValid}}
        <p>- At Least 1 Emergency Contact is Required</p>
    {{/unless}}
    {{#unless checkConsent}}
        <p>- Consent Forms for at least 1 Attendee is Pending</p>
    {{/unless}}
    {{#unless checkInsurance}}
        <p>- Insurance Card for at least 1 Attendee is Pending</p>
    {{/unless}}
    {{#unless allAttendingDetailsValid}}
        <p>- Information per Attendee under the Edit Section needs completed</p>
    {{/unless}}
  </div>
{{/unless}}
{{#if isValid}}
  <div class="callout callout-success">
    <h4>All actions have been completed.</h4>
 </div>
{{/if}}