Revision as of 16:58, 17 September 2012

Introduction

Typically in Yii, when a model (see: CActiveRecord) is used to retrieve data from a table in the database, the model's attributes are simply inherited from the schema for that table. However, in order to provide the means to add and remove fields from models (and thus from database tables), in addition to providing more advanced options for setting behaviors of attributes, most of the model classes in X2EngineCRM (the ones that are associated with database tables) are extended from a class X2Model. The attributes of all such models are not derived from the database itself but from an attribute registry stored in the x2_fields table. The following columns in the fields table are of particular importance:

modelName

The exact name of the model class to which the field belongs, with only one exception (fields with modelName="Quotes" belong to class Quote)

fieldName

The name of the database column

attributeLabel

The attribute label (the name of the field as displayed in the UI)

modified

Whether the field has been modified by the user.

custom

Whether the field has been created by the user.

type

The type of the column. This does not merely specify the canonical MySQL type, but is used for specifying advanced behaviors for the field.

required

Specifies that the model attribute cannot be null or empty, if set to 1.

readOnly

Signifies that the model attribute cannot be modified through user input, if set to 1.

linkType

In the case that the field is being used as a link, keywords set in this field signify what type of link should be generated in output.

searchable

If set to 1, the field's contents are included in global searches through records.

relevance

An integer value used for sorting search results.

isVirtual

If set to 1, the field does not actually correspond to a database column; rather, it is an ephemeral attribute of the model that is used for passing data from the view to the controller and vice-versa. For instance, it would be used in the case of input that needs to be collected as part of the model (initially) so that it can be put through input validation.

Field Types

assignment

The attribute is rendered as a link using User::getUserLinks. The input field for it is a dropdown list of users and groups.

boolean

(TINYINT) Self-explanatory; true or false.

currency

(FLOAT) A currency value. Setting a field to this type enables printing currency symbols by values.

date

(INT) Date, as a Unix timestamp. Using this format enables formatting of dates.

dropdown

(VARCHAR) Specifies the ID of a list of items stored in x2_dropdowns to use as the permissible values for the field (stored as a JSON object).

email

(VARCHAR) Specifies that the contents are formatted like (and correspond to an actual) email address.

int

(INT) Self-explanatory

link

(VARCHAR) In the case that the record is associated with another record, a field of this type specifies the text to be used as the text of the link to that other record. In such cases, the linkType field is used to distinguish the linked-to model (or other destination).

phone

(VARCHAR) Field is a phone number and should be treated/formatted as such when formatting for output.

rating

(varies) The CStarRating widget should be used to format this field in output.

text

(TEXT or VARCHAR) Distinct from VARCHAR in that links within the field's data are automatically transformed using x2base::convertUrls.

url

(VARCHAR) Field is a URL

varchar

(VARCHAR) Self-explanatory.

visibility

(INT) If 1, the record's contents are public. If 0, it is private. If 2, the record is visible only to the user's groups.