Functions 2

• In this lesson, you are going to create three more functions.
• With the update_card_description function, users will be able to update their card's description.
• With the deactivate_card function, users will be able to indicate that they are no longer to open to work.
• Finally you will create a public function which will return the card information based on the given id.

You can access the codes we wrote in this lesson below. 👇

 // With this function the user can change his/her card's description
  public entry fun update_card_description(devhub: &mut DevHub, new_description: vector<u8>, id: u64, ctx: &mut TxContext) {
    let user_card = object_table::borrow_mut(&mut devhub.cards, id);
    assert!(tx_context::sender(ctx) == user_card.owner, NOT_THE_OWNER);
    let old_value = option::swap_or_fill(&mut user_card.description, string::utf8(new_description));

    event::emit(DescriptionUpdated {
      name: user_card.name,
      owner: user_card.owner,
      new_description: string::utf8(new_description)
    });

    _ = old_value;
  }

  // With this function user can deactivate his/her account by setting open_to_work field of his/her card to false
  public entry fun deactivate_card(devhub: &mut DevHub, id: u64, ctx: &mut TxContext) {
    let card = object_table::borrow_mut(&mut devhub.cards, id);
    assert!(card.owner == tx_context::sender(ctx), NOT_THE_OWNER);
    card.open_to_work = false;
  }

  // This function returns the card based on the id provided
  public fun get_card_info(devhub: &DevHub, id: u64): (
    String,
    address,
    String,
    Url,
    Option<String>,
    u8,
    String,
    String,
    String,
    bool,
  ) {
    let card = object_table::borrow(&devhub.cards, id);
    (
      card.name,
      card.owner,
      card.title,
      card.img_url,
      card.description,
      card.years_of_exp,
      card.technologies,
      card.portfolio,
      card.contact,
      card.open_to_work
    )
  }