How to design database that handle Order, OrderItem, Return, Refund, Exchange? -


most questions on internet focus on order, orderitem. there're few question designing database comprehensively handle aspects of online retail (order, orderitem, return, refund, exchange).

i know data model.

 product (productid, name, etc) order (orderid, date, totalcost, etc) orderitem (orderid, productid, quantity, unitprice, etc)

based on above structure, how can manage return, refund, exchange?

i noticed when return/exchange item on super market, staff there regenerates new invoice. way handle return, refund, exchange?

  • (f table.column) means foreign key pointing table.column
  • (p) means primary key
  • (u) means unique key

here tables , example data...

addresses     id          unsigned int(p)     line1       varchar(50)     line2       varchar(50) // allow null     city_id     unsigned int(f cities.id)     zip         varchar(6) // 5 digits , mx, 6 characters (x9x9x9) ca     zip4        char(4) // allow null  +----+-----------------+-------+---------+--------+------+ | id | line1           | line2 | city_id | zip    | zip4 | +----+-----------------+-------+---------+--------+------+ |  1 | 123 main street | apt |      17 | 92101  | 1234 | |  2 | 345 east street | null  |      25 | t1x0l3 | null | | .. | ............... | ..... | ....... | ...... | .... | +----+-----------------+-------+---------+--------+------+  cities     id                  unsigned int(p)     state_id            unsigned int(f states.id)     name                varchar(50)     ...  +----+----------+-----------+-----+ | id | state_id | name      | ... | +----+----------+-----------+-----+ | .. | ........ | ......... | ... | | 17 |      130 | san diego | ... | | .. | ........ | ......... | ... | | 25 |       14 | calgary   | ... | | .. | ........ | ......... | ... | +----+----------+-----------+-----+

see iso 3166-1

countries     id              char(2)(p)     iso3            char(3)(u)     iso_num         char(3)(u)     name            varchar(45)(u)  +----+------+---------+---------------+ | id | iso3 | iso_num | name          | +----+------+---------+---------------+ | .. | .... | ....... | ............. | | ca | can  | 124     | canada        | | .. | .... | ....... | ............. | | mx | mex  | 484     | mexico        | | .. | .... | ....... | ............. | | | usa  | 840     | united states | | .. | .... | ....... | ............. | +----+------+---------+---------------+

see php's crypt() function hashing password.

customers     id              unsigned int(p)     first_name      varchar(50)     middle_name     varchar(50) // allow null     last_name       varchar(50)     email           varchar(255)     username        varchar(32)     password        varbinary(255) // hashed     ...  +----+------------+-------------+-----------+----------------------------+-----------+----------+-----+ | id | first_name | middle_name | last_name | email                      | username  | password | ... | +----+------------+-------------+-----------+----------------------------+-----------+----------+-----+ |  1 | john       | quincy      | public    | jqp@privacy.com            | johnqball | xxxxxxxx | ... | |  2 | jane       | null        | doe       | ladyinred@chrisdeburgh.com | janeykins | xxxxxxxx | ... | | .. | .......... | ........... | ......... | .......................... | ......... | .......  | ... | +----+------------+-------------+-----------+----------------------------+-----------+----------+-----+  customers_addresses     id              unsigned int(p)     customer_id     unsigned int(f customers.id)     address_id      unsigned int(f addresses.id)  orders     id                  unsigned int(p)     customer_id         unsigned int(f customers.id)     bill_address_id     unsigned int(f addresses.id)     ship_address_id     unsigned int(f addresses.id)     created             datetime     shipped             datetime     ...  +----+-------------+-----------------+-----------------+---------------------+---------------------+-----+ | id | customer_id | bill_address_id | ship_address_id | created             | shipped             | ... | +----+-------------+-----------------+-----------------+---------------------+---------------------+-----+ |  1 | 1           | 1               | 1               | 2012-12-31 23:59:59 | 2013-01-01 00:00:00 | ... | +----+-------------+-----------------+-----------------+---------------------+---------------------+-----+  orders_products     id              unsigned int(p)     order_id        unsigned int(f orders.id)     product_id      unsigned int(f products.id)     quantity        unsigned int     unit_price      double     ...  +----+----------+------------+----------+------------+-----+ | id | order_id | product_id | quantity | unit_price | ... | +----+----------+------------+----------+------------+-----+ |  1 | 1        | 1          | 1        | 12.34      | ... | |  2 | 1        | 2          | 13       | 1.78       | ... | | .. | ........ | .......... | ........ | .......... | ... | +----+----------+------------+----------+------------+-----+  products     id                  unsigned int(p)     name                varchar(50)     price               double     ...  +----+----------+-------+-----+ | id | name     | price | ... | +----+----------+-------+-----+ |  1 | widget 1 | 12.34 | ... | |  2 | widget 2 | 1.78  | ... | | .. | ........ | ..... | ... | +----+----------+-------+-----+  returns     id                      unsigned int(p)     order_product_id        unsigned int(f orders_products.id)     quantity                unsigned int     ...  +----+------------------+----------+-----+ | id | order_product_id | quantity | ... | +----+------------------+----------+-----+ |  1 | 1                | 1        | ... | | .. | ................ | ........ | ... | +----+------------------+----------+-----+

see iso 3166-2

states     id              unsigned int(p)     country_id      char(2)(f countries.id)     code            char(2) // ab, al, nl, etc.     name            varchar(50) // alberta, alabama, nuevo leon, etc.     ...  +-----+------------+------+------------+-----+ | id  | country_id | code | name       | ... | +-----+------------+------+------------+-----+ | ... | .......... | .... | .......... | ... | |  14 | ca         | ab   | alberta    | ... | | ... | .......... | .... | .......... | ... | |  72 | mx         | ch   | chiapas    | ... | | ... | .......... | .... | .......... | ... | | 130 |         | ca   | california | ... | | ... | .......... | .... | .......... | ... | +-----+------------+------+------------+-----+

returns, refunds , exchanges return - customer returning product. how handle depends on business rules...


Comments

Post a Comment

Popular posts from this blog

html - How to style widget with post count different than without post count -

i have border below li elements in wordpress widget types appropriate. element inside set block gives them nice easy click full width. the problem, when choose option "show post count" when adding widget such categories or archives displays post count plain text after tag , because tag block pushes post number text line below. whether choose show post count or not show post count still gives exact same element identifyer example "widget_categories". how style post count not on next line still keep links non post count list items full width? here's example on sidebar www.bbmthemes.com/themes/modular/blog-standard/ in order solve problem need remove display:block; for ul.widgets ul a , add in it's place line-height: 33px; what going achieve have same visual effect. what going lose doing links going work on text , not on "box". the other way out of find post count coming , make changes this. example change text count i
Read more

How to remove text and logo OR add Overflow on Android ActionBar using AppCompat on API 8? -

have researched death , cannot find answer. i have actionbar using appcompat. supporting api v7 (api v8 do). actionbar works api v11. api < v11 has problem of removing icon (and feature) actionbar without supplying overflow. big picture have app logo, app title, , 3 icons squidging same actionbar on low end phone. trying make room! i happy 1 of 2 solutions. either: a method of getting overflow functionality can retrieved pull down. (preferred) method of removing icon , text actionbar below current xml api 11+: <resources> <!-- base application theme api 11+. theme replaces appbasetheme res/values/styles.xml on api 11+ devices. --> <style name="appbasetheme" parent="theme.appcompat.light.darkactionbar"> <item name="android:actionbarstyle">@style/liteactionbarstyle</item> <item name="actionbarstyle">@style/liteactionbarstyle</item> </st
Read more

javascript - storing input from prompt in array and displaying the array -

i want take the inputs user prompt, store input in array, , display it. want take 10 inputs user using for loop. have tried do-while shown below. var givennames = new array(); var pattern = /[\w\d]{1,}/ig; do{ var name = prompt("enter names. letters , digits accepted!\nentering empty field stops asking",""); if(name && name.match(pattern)){givennames.push(name);} } while(name != ""); function displaynames(){ if(givennames.length > 0){ document.getelementbyid("list").innerhtml = "<span style='color:navy;font- weight:bold;'>given names are:<\/span><br><br>" + givennames.join("<br><br>"); } else { document.getelementbyid("list").innerhtml = "<span style='color:navy;font-weight:bold;'>nothing has been given!<\/span>"; } } how replace for loop? var givennames = new array();
Read more