Me chapter eke niyamaya

Hadapu ewa, saha aai

Handa nagala defend karanna one theerana deka

Database eka, tables haya

Hitha mathaya podiyi. Eka design theeranayakin sampurna research eka usulanawa, ekath hathareni table eka.

Table 4 thesis eka schema ekak widiyata liyapu de wenne aai

Access control, database eken balakaraya karanawa

Website eken dewal habaa thiyanawa nowei, database eken ma denne na. Ekata kiyanne row level security.

Contribution eka wena features hathara

Chapter 5 eken me hathara liyanawa saha registration saha login wage sadharana dewal hitha mathaya ain karanawa, mokada ewaye me research ekata wisheshitha logic ekak na.

1. Unified information layer eka

Meka screen ekaka penwanna puluwan component ekak nowei. Meka, event eke schedule eka, price eka, inclusions saha live availability eka eka record ekak wenawa kiyana gunaya, guest kenek enawada kiyala theerana ganna ekath organizer kenek kochchara ganinawada kiyala theerana ganna ekath ekama widiyata kiyawana.

Eka aththak karana theerana thunak:

• Eka inventory table eka, ithin availability eka eka thanaka thiyenawa
• Ithuru ganan eka liyanne booking function eken witharai, ithin eka bookings walin iwath wenna ba
• Screen deka ma ekama table ekata subscribe wenawa, eke wena wena copies walata nowei

2. Multi-resource inventory model eka

Organizer kenek event ekakata kematha resources ganan ekak define karanawa, hama ekakatama kind ekak, namak, price ekak saha total quantity ekak ekka. Remaining eka total ekata samana wa patan gannawa, passe eka wenas wenne bookings walin witharai.

Eka validation rule ekakin field ekak nowei guarantee ekak aarakshaa karanawa: total ekak adu karanna puluwan, eth kalinma book karapu pramanayata wada adu karanna ba. Eka anumatha kalot, concurrency eken nowei configuration eken oversell ekak hadanawa. Rule eka duwanne update eka karana ekama transaction eke.

Events walata ticket wargaye hama resource ekakatama balapana capacity ceiling ekakuth thiyenawa, ekath organizer item 13 eken hadunagath idam saha aarakshaka seemaawa.

3. Atomic multi-resource booking

Meka thamai wadima technical awadhaanama saha pehedili ma correctness requirement eka thiyena feature eka.

Ithin check ekath adu kirimath eka database transaction ekak athule, eka operation ekak widiyata call karanawa. Website eken kisidaka availability kiyawala passe liyanne na.

create_booking(event, items) returns booking

  begin transaction

    -- sambandha hama resource row ekakma, id ekata piliwelata allaganna
    select * from resource_types
      where id in (illana resources)
      order by id
      for update

    -- illana hama pramanayakma allagath number ekata check karanna
    for each item:
        if remaining_quantity < illana pramanaya:
            raise INSUFFICIENT_STOCK(e resource eke nama)

    -- ticket wargaye resources walata event capacity ceiling eka check karanna
    if kalin book kala tickets + dan illana tickets > event.capacity:
        raise CAPACITY_EXCEEDED(capacity eka)

    -- sampurna booking eka commit karanna, nathnam ekakwath na
    for each item:
        update resource_types
          set remaining_quantity = remaining_quantity - quantity

    insert into bookings   (random qr_token ekak ekka)
    insert into booking_items (item ekakata row ekak, price copy karala)

    return booking

  commit

4. Live availability propagation

Organizer dashboard ekath tourist event page ekath deka ma inventory table eke wenaskam walata subscribe wenawa, balana events walata filter karala. Booking ekak commit unama, database eken row wenasa publish karanawa saha hama subscribe una screen ekakatama aluth number eka labenawa, polling nathuwa refresh nathuwa.

Subscription eka duwanne browser eken kelinma database service ekata, website eke ma server eka harahaa nowei, ithin update eka thawa round trip ekakata balaporoththuwen innne na.

Check-in eke QR validation

Hama confirm una booking ekakama QR code eka pitipasse token ekak thiyenawa. Eka digu cryptographically random value ekak, piliwelin ena number ekak nowei saha booking id eke misra kirimak nowei. Anumana karanna puluwan token ekakin booking ekak nathuwa aethulath wenna puluwan, ekath Chapter 2 eken hadunagath ticket fraud prashnaya.

Dorata langa, staff token eka scan karanawa hari type karanawa hari, saha hariyatama pradhipala thunak thiyenawa:

1. Hadunanne na, nathnam wena event ekakataPratikshepa karanawa, hethuwa penwala.
2. Kalinma check in welaNawatha use kirimak widiyata pratikshepa karanawa, saha palaweni check-in welawa penawa, ithin staff lata palaweni use kale kawadada kiyala penenawa.
3. Hari saha confirmedAethulath karanawa. Status eka checked in wenawa, timestamp record wenawa, saha booking eke thiyena dewal penwanawa, ithin staff lata guest sallii gehuwe mokakatada kiyala penenawa.

System ekata dammuwa data

Hitha mathaya bhagayak ithuru availability ekak ekka dammuwa, purawala nowei. Sparsha nokala inventory ekakata witharak test karana system ekak, wadagath boundary conditions walata kisidaka yanne na. Saha ethana kisima aththama kenekge namak, phone number ekak hari email ekak hari na, eka Chapter 3 eke ethics pratignaawata sambandhai.

Oyagen ahuwoth

Tickets, rooms saha add-ons eka table ekaka dammuwe aai?

Mokada ewa guest kenekta wena wena dewal unath system ekata ekama widiyata hesirena nisa. Hama ekakma price ekak, total quantity ekak saha remaining quantity ekak usulanawa, saha book karapu haema ekakma atomically adu karanna one.

Eka table ekakin, event ekaka sampurna resource thathwaya denna eka query ekak, hama surface ekakma ekawara thiyaganna eka realtime subscription ekak, saha hama ekawara adu kirimakma paalanaya karanna eka locking discipline ekak labenawa.

Ewa wena wenama model kalot, availability eka code paths thunakata bindila, system eka athule ma, research eken adaala athin karana kramawala pradhana prashnaya kiyala hadunagaththa e ekama nogaelapeema aayeth hadenawa.

MongoDB wage document store ekak nowei PostgreSQL aai?

Mokada booking ekakin wena wena resource counts keepayak adu karanna one saha ekko sampurnayen sarthaka wenna one ekko kisima ithurak thiyanna epa, ekata document store ekakin sadharana widiyata nodena transactional guarantees one.

Chapter 2 eken me wage platforms walata multi-resource inventory eke concurrency control eka pradhana algorithmic prashnaya kiyala hadunaganawa, saha review karapu source ekakin wisheshayen kiyanawa eventually consistent stores mata duwana platforms users lata parani availability pennanawa kiyala. Parani availability kiyanne me research eken ain karanna hadana hariyatama e prashnaya.

Booking logic eka oyage application code eke nowei database eke thiyenne aai?

Hariyata wada karana eka client hesirimak mata hari duwana application instances ganan mata hari rada nopawathinna. Check ekath adu kirimath website eken kalot, ekawara duwana copies dekakata parani data mata hari widiyata penena theerana denna puluwan.

Database eka athule, transaction eka duwana kaalayata rows lock wela thiyenawa, ithin number ekak check karana ekath eka wenas karana ekath athara harasha nathi wenawa. Client eken eka call ekak karanawa saha ekko booking ekak labenawa ekko nam kiyapu pratikshepayak labenawa.

Oyage access control eka interface eke nowei database eke thiyenne aai?

Hethu dekak. Palaweni, interface eke bug ekakin eka property ekaka booking data anith ekata yanna ba, mokada ewa nodenne interface eka nowei. Dewani, interface eken thora wa guarantee eka test karanna puluwan, TC-09 karanne eka, eka user kenekge credentials ekka wena user kenekge data ekata API ekata kelinma requests yawala.

Ekath ekka data eken illa siti deyakata uththarayak. Security saha data protection, organizers lage substantive adoption uththara walin 46.7%ka thibba.

Me chapter eke liyala nathi de mokakda, saha aai?

Account registration, authentication saha profile management. Ewa standard patterns walin hadala thiyenawa saha me research ekata wisheshitha logic ekak na, ithin ewa liyanawa kiyanne check karanna puluwan monawath ekathu nokara pages ekathu karana eka.

Liyala thiyena features hathara technical contribution eka hadana ewa: unified information layer eka, multi-resource inventory model eka, atomic booking eka, saha live availability propagation eka.