# <center><i class="fa fa-edit"></i> Smart Dispenser: `members_additional_card` Subfunction Pseudocode </center>
###### tags: `Internship`
:::info
**Goal:**
- [x] Code the subfunction for collection `members_additional_Card`
- [x] Need to test run later, do not change the original member data
- [x] 由於目前的系統設計是只要有卡片能感應就能夠取水，因此在新增卡片前請記得檢查成員資料庫中是否已有相同卡號且身份為"unregistered" 成員，如果有的話則需要刪掉該筆資料 同時也須要注意是否有卡號重複的情形

**Resources:**
[PyQt](https://hackmd.io/Ibk_VuuWRXOjkION4wk3tg)
[newXinXingPyQtStructure](https://drive.google.com/drive/folders/1QNJJxxug1Njb9ATe-BdzcZKZZ1PGI2Sd?usp=sharing)
[CodiMD](https://hackmd.io/c/codimd-documentation/%2F%40codimd%2Fextra-supported-syntax#Flow-Chart)
[冠辰參考的筆記](https://www.wongwonggoods.com/page/4/?s=pyqt&ct_post_type=post%3Apage&ct_product_price=1)
:::
### Figures
*Figure 1. Open a new collection members_additional_card*

*Figure 2. Flowchart*

### Subfunction PseudoCode
**main**

while loop to keep asking for user put
{
s = user input of schoolID
verify(s)
}
if input is NOT in schoolID field of members_additional_data 
    popupRRE()
if schoolID is in collection members_additional card
    display PyQt page
    ask user if they want to add an additonal card 
if yes
    while loop to keep asking for user put
    {
    a = user input of cardID
    verify(a)
    }
if checkPrim(a,s) is true, then display error popup: sorry, this ID is already registered as your primary card 
else  
    if checkAdd(a,s) is true , then display error popup: sorry, this ID is already registered as your additional card
else 
    addCard(a,s)
    checkDoubles(a)
 
display updated members_additional_card in PyQt

**subfunctions of subfunctions**

void verify8(int input)
if len(input) is not 8
system print "Please enter 8 numbers"
change input from string to integer
if input is not an int:
  raise TypeError("Only numbers are allowed")
  ask if they want to reenter

void verify10(int input)
if len(input) is not 10
system print "Please enter 10 numbers"
change input from string to integer
if input is not an int:
  raise TypeError("Only numbers are allowed")
  ask if they want to re-enter

void popupRRE()
display error invalid schoolID with options to re-enter schoolID, register as new user, or exit
if re-enter is hit, go through process above 
else if register as new user is hit, direct them to registration window
else exit = system exit

boolean checkPrim(int a, int s)
if fields with s and primaryCard contain a, then return true
else return false

boolean checkAdd(int a, int s)
if fields with s and additionalCard contain a, then return true
else return false

void addCard(int a, int s)
add card to collection with schoolID field filled in as s, primaryCard field filled in as the interger whens && (primaryCard == additionalCard) 

void checkDoubles(int a)
search through collections members_data for the following:
if (a == cardID and unregistered)
    deleteAll