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howerest 2018 - <hola@davidvalin.com> | www.howerest.com
Apache 2.0 Licensed
-------------------
ValidationRule: represents a validation rule
--------------------------------------------------------------------------- */
export class ValidationRule<IParams = {}> implements IValidationRule {
protected conditions: Array<Function|any> = [];
public fromValue:any;
public toValue:any
public params: IParams
private _invalidMessage = "Invalid";
constructor(params?:any) {
this.params = params;
this._invalidMessage = "";
}
/**
* Retrieves the invalid message for the ValidationRule
*/
get invalidMessage(): string {
return this._invalidMessage;
}
/**
* Checks if the ValidationRule is valid
*/
public isValid(fromValue:any, toValue:any): boolean {
this.fromValue = fromValue;
this.toValue = toValue;
// Reset the invalid message
this._invalidMessage = '';
for(let i=0; i < this.conditions.length; i++) {
if (this.conditions[i]() === false) {
return false;
}
}
return true;
}
/**
* Adds an invalid message to the ValidationRule
*/
public addInvalidMessage(message:string) {
this._invalidMessage += message;
}
}
export interface IValidationRule {
params: any;
invalidMessage: string;
isValid(fromValue:any, toValue:any);
}
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