Difference between revisions of "Common:Object Construction"

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#* '''One to Many -''' One <tt>{baseObject}</tt> record can be related to many <tt>{relatedObject}</tt> records
#* '''One to Many -''' One <tt>{baseObject}</tt> record can be related to many <tt>{relatedObject}</tt> records
#*: For example: One ''Order'' can have many ''OrderItems''.
#*: For example: One ''Order'' can have many ''OrderItems''.
#*:
#*: '''Note:'''
#*: To make a '''One to One''' relationship, construct it as One to Many, and add a [[Unique Index]] to the target object to ensure that only one such record can ever exist.
#* '''Many to Many -''' One <tt>{baseObject}</tt> record can be related to many <tt>{relatedObject}</tt> records, and each of the <tt>{relatedObject}</tt> records can be related to many <tt>{baseObject}</tt> records
#* '''Many to Many -''' One <tt>{baseObject}</tt> record can be related to many <tt>{relatedObject}</tt> records, and each of the <tt>{relatedObject}</tt> records can be related to many <tt>{baseObject}</tt> records
#*: For example: One ''Order'' can have many ''Tags'', and one ''Tag'' can be applied to many ''Orders''.
#*: For example: One ''Order'' can have many ''Tags'', and one ''Tag'' can be applied to many ''Orders''.

Revision as of 22:50, 3 July 2013

Define an object:

  1. Click [Define Fields]
  2. Define up to 10 fields, to get started. (You can add more later.) For each field, specify:
    • Field Label - The label users will see
    • Internal Field Name - The internal reference name. (Created for you. Modifiable, but generally best left alone.)
    • Field Type - Pick one of the many choices
  3. Follow the prompts to add additional information, depending on the field type.
  4. When done defining fields, click [Save]

For more, click [Add additional Object] and repeat the process.

Establish relationships between objects:

  1. Click [Add a Relationship]
  2. Under Relationships select the objects to fill in the blanks:
    Between __{baseObject}__ and __{relatedObject}__
  3. Specify the Relationship Type:
    • One to Many - One {baseObject} record can be related to many {relatedObject} records
      For example: One Order can have many OrderItems.
      Note:
      To make a One to One relationship, construct it as One to Many, and add a Unique Index to the target object to ensure that only one such record can ever exist.
    • Many to Many - One {baseObject} record can be related to many {relatedObject} records, and each of the {relatedObject} records can be related to many {baseObject} records
      For example: One Order can have many Tags, and one Tag can be applied to many Orders.
The relationships cause Lookup fields to be added to the objects, with names like "related_to_X". For example, the OrderItems object will have a field named related_to_Orders.