Thread: Add filter validation form

/**
	 * Validates the posted fields on an Create/Edit project form.
	 *
	 * @uses apply_filters() Calls 'hrb_project_validate_fields'
	 *
	 */
	function validate_fields( $order, $checkout ){
        global $hrb_options;

		if ( empty( $_POST['post_title'] ) ) {
			appthemes_add_notice( 'no-title', __( 'No title was submitted.', APP_TD ) );
        }

		if ( empty( $_POST['budget_price'] ) || ! intval( $_POST['budget_price'] ) ) {
			appthemes_add_notice( 'invalid-price', __( 'Please insert a valid budget price.', APP_TD ) );
        }

		if ( ! hrb_charge_listings() && ( isset( $_POST['duration'] ) && $hrb_options->project_duration < (int) $_POST['duration'] ) ) {
			appthemes_add_notice( 'invalid-duration', sprintf( __( 'The project duration must be equal or inferior to %d.', APP_TD ), $hrb_options->project_duration ) );
        }

        if ( ! hrb_charge_listings() && ( ! isset( $_POST['duration'] ) && $hrb_options->project_duration > 0 ) ) {
			appthemes_add_notice( 'empty-duration', __( 'The project duration cannot be empty.', APP_TD ) );
        }

		$project_categories = _hrb_posted_terms( HRB_PROJECTS_CATEGORY );
		if ( ! $project_categories ) {
			appthemes_add_notice( 'wrong-cat', __( 'No category was submitted.', APP_TD ) );
        }

		if ( ! empty( $_REQUEST['ID'] ) ) {
			$project_id = (int) $_REQUEST['ID'];

			// make sure the categories were not changed after editing a purchased Project
			if ( ! hrb_categories_editable( $project_id ) ) {
				$terms = get_the_hrb_project_terms( $project_id, HRB_PROJECTS_CATEGORY );

				$diff_cats = hrb_parent_terms_diff( $terms, $project_categories );

				if ( ! empty( $diff_cats ) ) {
					appthemes_add_notice( 'hack-cat', __( 'Categories cannot be changed after purchase!', APP_TD ) );
				}
			}
		}

        APP_Notices::$notices = apply_filters( 'hrb_project_validate_fields', APP_Notices::$notices, $order, $checkout );
		if ( APP_Notices::$notices->get_error_code() ) {
			return false;
		}
        return true;
	}