| Attribute | Description |
|---|---|
| Table | Specify the table name that will be a parent for this column. This mandatory field is a reference to the Tables dictionary (sys_db_table). |
| Column type | Specify a column type. You can read more about types there: Field types. The column type specifies the type of the data stored, also, depending on the type selected, additional tabs or fields may appear on the form (see below). |
| Title | A column title displayed on the form. It is preferred to be sensible and human-readable. This field is mandatory. Latin, Cyrillic, [0..9] numbers and the underscore symbol ( _ ) are allowed. |
| Column name | A system column name. It is preferred to be human-readable and keep the kind of stored data. Latin letters, [0..9] numbers and the underscore symbol ( _ ) are allowed. |
| Active | Select this checkbox, and customizing of this field displayed on the form and list will be possible. |
| Read-only | Select this checkbox to make the field read-only. |
| Mandatory | Select this checkbox to make the field mandatory. |
| Full text search | Set this attribute equal to TRUE to make it possible to perform a Global Search against the current column. |
| Display by ref | When a record references to another record and the table or column containing this record has the attribute Display by ref equal to TRUE, then the column value will be displayed. By default, this attribute is set equal to TRUE for the sys_id column (this column contains unique IDs). If a table contains a field that has Display by ref = TRUE, the value of this field will be displayed when referencing this table in the Reference field of the referencing table. |
| Unique | When turned on, no way to add a record with a value of this field, if a record with the same value already exists. |
| Type specification tab | |
| Max length | (For the columns that have a String or Text type) Specify a maximum value length for this column. The value length cannot exceed allowable length for the specified data type. |
| Extra attributes | By filling this field, you become available to use extended parameters on lists and forms. Some examples:
So, these operators become available to use on the column view. 2. For the Image type columns, you can specify maximum image width and height, like this: This field allows extending column properties compared to the regular. |
| Default Value tab | |
| Default value | Specify a default value that will be populated to the field when creating a new record. This field may be specified by a Javascript scenario as well.
|
| Use dynamic default | Select this checkbox if you want to generate the default value dynamically. |
| Dynamic default | This field appears only when the Use dynamic default attribute is set to TRUE. Select the script from sys_default_value_dynamics dictionary, so its execution result will be automatically calculated and entered into this field; this value will be the default value for the column specified.
|
Client-side logic on columns
In SimpleOne, several column types have an extended attribute set, unlike other types.
Depending on the column type, in addition to the standard fieldset, these column types demonstrate a dynamic change of the sys_db_column object attribute set depending on its type.
These column types and their additional attributes are listed below.
| Column type | Additional Attribute | Description |
|---|---|---|
| Condition, Template, Field Name | The Dependent on column field; it has the Reference type. | This field appears at the Type Specification tab. It's a reference to the Tables dictionary; in there, you can specify a table that will share the fields with the newly created column. |
| Reference, List | The Reference field; it has the Reference type. | This field appears at the Type Specification tab. This field is mandatory for fields of the reference type (Reference or List); for these fields, a dictionary containing values for them should be specified, |
| The Reference Qualifier tab | This tab appears when the column has a Reference or List type. In there, you can specify a qualifier for the column. For more information, please refer to the Reference Qualifiers article. | |
| Choice | The Choice table field | Reference to a dictionary; its values will be available for the Choice field. |
| The Choice field field | Reference to the specified field of the dictionary; its values will be available for the Choice field. | |
| The Choice type field | Choice field type:
This field is mandatory for the fields of this type. |
