From bb8831ab5da0c1e36c53d256c4287f94804fde03 Mon Sep 17 00:00:00 2001
From: petru <smart__petea@mail.ru>
Date: Wed, 24 May 2017 15:55:36 +0300
Subject: [PATCH] added gtTo

---
 example/src/app.html                  | 13 ++++++++++++-
 src/greater-than-to/directive.spec.ts |  1 +
 src/greater-than-to/directive.ts      | 28 +++++++++++++++++++++++++++
 src/greater-than-to/index.ts          |  2 ++
 src/greater-than-to/validator.spec.ts | 14 ++++++++++++++
 src/greater-than-to/validator.ts      | 18 +++++++++++++++++
 src/index.ts                          |  3 +++
 7 files changed, 78 insertions(+), 1 deletion(-)
 create mode 100644 src/greater-than-to/directive.spec.ts
 create mode 100644 src/greater-than-to/directive.ts
 create mode 100644 src/greater-than-to/index.ts
 create mode 100644 src/greater-than-to/validator.spec.ts
 create mode 100644 src/greater-than-to/validator.ts

diff --git a/example/src/app.html b/example/src/app.html
index 4103332..96fb52a 100644
--- a/example/src/app.html
+++ b/example/src/app.html
@@ -164,6 +164,17 @@
       </div>
     </div>
 
+    <div class="form-group">
+      <label class="col-xs-3 control-label">greater than to</label>
+
+      <div class="col-xs-9">
+        <input class="form-control" type="text" ngModel name="gtTo0" #gtToNumber="ngModel"/>
+        <input class="form-control" type="text" ngModel name="gtTo1" #gtTo1="ngModel" [gtTo]="gtToNumber"/>
+        <p class="alert alert-danger" *ngIf="gtTo1?.errors?.gtTo">gtTo error</p>
+      </div>
+    </div>
+
+
     <div class="form-group">
       <label class="col-xs-3 control-label">less than</label>
 
@@ -263,4 +274,4 @@
       </div>
     </div>
   </form>
-</div>
\ No newline at end of file
+</div>
diff --git a/src/greater-than-to/directive.spec.ts b/src/greater-than-to/directive.spec.ts
new file mode 100644
index 0000000..65b3dba
--- /dev/null
+++ b/src/greater-than-to/directive.spec.ts
@@ -0,0 +1 @@
+// todo
diff --git a/src/greater-than-to/directive.ts b/src/greater-than-to/directive.ts
new file mode 100644
index 0000000..d3f88d7
--- /dev/null
+++ b/src/greater-than-to/directive.ts
@@ -0,0 +1,28 @@
+import { Directive, Input, forwardRef, OnInit } from '@angular/core';
+import { NG_VALIDATORS, Validator, FormControl, ValidatorFn, AbstractControl } from '@angular/forms';
+
+import { gtTo } from './';
+
+const GREATER_THAN_TO_VALIDATOR: any = {
+  provide: NG_VALIDATORS,
+  useExisting: forwardRef(() => GreaterThanToValidator),
+  multi: true
+};
+
+@Directive({
+  selector: '[gtTo][formControlName],[gtTo][formControl],[gtTo][ngModel]',
+  providers: [GREATER_THAN_TO_VALIDATOR]
+})
+export class GreaterThanToValidator implements Validator, OnInit {
+  @Input() gtTo: FormControl;
+
+  private validator: ValidatorFn;
+
+  ngOnInit() {
+    this.validator = gtTo(this.gtTo);
+  }
+
+  validate(c: AbstractControl): {[key: string]: any} {
+    return this.validator(c);
+  }
+}
diff --git a/src/greater-than-to/index.ts b/src/greater-than-to/index.ts
new file mode 100644
index 0000000..5c8cea0
--- /dev/null
+++ b/src/greater-than-to/index.ts
@@ -0,0 +1,2 @@
+export * from './directive';
+export * from './validator';
diff --git a/src/greater-than-to/validator.spec.ts b/src/greater-than-to/validator.spec.ts
new file mode 100644
index 0000000..f2a94b1
--- /dev/null
+++ b/src/greater-than-to/validator.spec.ts
@@ -0,0 +1,14 @@
+import { FormControl } from '@angular/forms';
+
+import { gtTo } from './';
+
+describe('GreatThanTo', () => {
+  const error = {equalTo: true};
+
+  it('5 should be gtTo to 4', () => {
+    let control = new FormControl(5);
+    let control1 = new FormControl(4);
+
+    expect(gtTo(control1)(control)).toBeNull();
+  });
+});
diff --git a/src/greater-than-to/validator.ts b/src/greater-than-to/validator.ts
new file mode 100644
index 0000000..c021edc
--- /dev/null
+++ b/src/greater-than-to/validator.ts
@@ -0,0 +1,18 @@
+import { AbstractControl, ValidatorFn } from '@angular/forms';
+
+export const gtTo = (gtToControl: AbstractControl): ValidatorFn => {
+  let subscribe: boolean = false;
+
+  return (control: AbstractControl): {[key: string]: boolean} => {
+    if (!subscribe) {
+      subscribe = true;
+      gtToControl.valueChanges.subscribe(() => {
+        control.updateValueAndValidity();
+      });
+    }
+
+    let v: number = +control.value;
+
+    return +gtToControl.value < v ? null : {gtTo: true};
+  };
+};
diff --git a/src/index.ts b/src/index.ts
index d088187..280004a 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -10,6 +10,7 @@ import { equal, EqualValidator } from './equal';
 import { equalTo, EqualToValidator } from './equal-to';
 import { gt, GreaterThanValidator } from './greater-than';
 import { gte, GreaterThanEqualValidator } from './greater-than-equal';
+import { gtTo, GreaterThanToValidator } from './greater-than-to';
 import { json, JSONValidator } from './json';
 import { lt, LessThanValidator } from './less-than';
 import { lte, LessThanEqualValidator } from './less-than-equal';
@@ -37,6 +38,7 @@ export const CustomValidators: any = {
   equalTo,
   gt,
   gte,
+  gtTo,
   json,
   lt,
   lte,
@@ -65,6 +67,7 @@ const CUSTOM_FORM_DIRECTIVES = [
   EqualToValidator,
   GreaterThanValidator,
   GreaterThanEqualValidator,
+  GreaterThanToValidator,
   JSONValidator,
   LessThanValidator,
   LessThanEqualValidator,