1 files changed, 39 insertions, 0 deletions
diff --git a/frontend/src/components/fields/extensions/NumericField.js b/frontend/src/components/fields/extensions/NumericField.js
new file mode 100644
index 0000000..8823c42
--- /dev/null
+++ b/frontend/src/components/fields/extensions/NumericField.js
@@ -0,0 +1,39 @@
+import React, {Component} from 'react';
+import InputField from "../InputField";
+
+class NumericField extends Component {
+
+    constructor(props) {
+        super(props);
+
+        this.state = {
+            invalid: false
+        };
+    }
+
+    render() {
+        const handler = (value) => {
+            value = value.replace(/[^\d]/gi, '');
+            let intValue = 0;
+            if (value !== "") {
+                intValue = parseInt(value);
+            }
+            const valid =
+                (!this.props.validate || (typeof this.props.validate === "function" && this.props.validate(intValue))) &&
+                (!this.props.min || (typeof this.props.min === "number" && intValue >= this.props.min)) &&
+                (!this.props.max || (typeof this.props.max === "number" && intValue <= this.props.max));
+            this.setState({invalid: !valid});
+            if (this.props.onChange) {
+                this.props.onChange(intValue);
+            }
+        };
+
+        return (
+            <InputField {...this.props} onChange={handler} initialValue={this.props.initialValue || 0}
+                        invalid={this.state.invalid} />
+        );
+    }
+
+}
+
+export default NumericField;