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  5. Metadata XML definition
  6. Metadata fields
  7. Metadata Suggestbox field
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Metadata Suggestbox field

This is an implementation of the typical AJAX suggest box component:

AttributeDescriptionRequired
label

The text shown as a label in the user interface.

true
name

Unique field identifier.

Two metadatas can't have the same name. Name must be unique.

The name must start with "okp:".

It's a good practice to use a metadata group name as basis for metadata field name. For example use "okg:consulting" has been used for field name "okp:consulting.suggestbox", changin "okg" to "okp". That helps to find out the metada group based on metadata field name.

Please, use only letters, numbers and underscore: "0-9a-zA-Z_".

true
table

Metadata table name.

The application can store values into a metadata table, that can be used in this query.

 true

width

 The width of the HTML element. false

height

 The height of the HTML element. false

filterQuery

 A hibernate query to filter the data. Use {0} to place the user input. true

valueQuery

 A Hibernate query to obtain the value of a identifier. Use {0} to place the identifier. true

filterMinLen

 The minimum chars in input to begin to filter results. true

readonly

 The set field will not be able to be modified in the user interface. By default the value is "false". false

Child elements:

Suggest box values are defined in metadata tables.

  • Application use two tables named OKM_DB_METADATA_TYPE AND OKM_DB_METADATA_VALUE that helps storing options values used in selects. That's very useful when you have?a large number of values.
  • In table OKM_DB_METADATA_TYPE are stored metadata table definition ( table name, column name and column type ).
  • In table OKM_DB_METADATA_VALUE are stored record values.

Create metadata table definition.

The table will be called country, with two columns, country_id and country_name.

The country_id column is integer type and country_name is text type.

The country_id is set as column 0 with col00 value.

The country_name is set as column 1 with col01 value.

  • Go to Administration > Database query.
  • At the bottom right select JDBC from list.
  • Paste the SQL in the box
DELETE FROM OKM_DB_METADATA_TYPE WHERE DMT_TABLE='country';
INSERT INTO OKM_DB_METADATA_TYPE (DMT_TABLE, DMT_REAL_COLUMN, DMT_TYPE, DMT_VIRTUAL_COLUMN) VALUES ('country', 'col00', 'integer', 'country_id');
INSERT INTO OKM_DB_METADATA_TYPE (DMT_TABLE, DMT_REAL_COLUMN, DMT_TYPE, DMT_VIRTUAL_COLUMN) VALUES ('country', 'col01', 'text', 'country_name');
  • Click at bottom right the Execute button.

Insert metadata table values:

  • Go to Administration > Database query.
  • At bottom right select JDBC from list.
  • Paste the SQL in the box
DELETE FROM OKM_DB_METADATA_VALUE WHERE DMV_TABLE='country';
INSERT INTO OKM_DB_METADATA_VALUE (DMV_TABLE, DMV_COL00, DMV_COL01) VALUES ('country', '001', 'Australia');
INSERT INTO OKM_DB_METADATA_VALUE (DMV_TABLE, DMV_COL00, DMV_COL01) VALUES ('country', '002', 'Canada');
  • Click at bottom right the Execute button.

The insert queries depending your database can not be match, for example in Oracle:

INSERT INTO OKM_DB_METADATA_TYPE (DMT_ID, DMT_TABLE, DMT_REAL_COLUMN, DMT_TYPE, DMT_VIRTUAL_COLUMN) VALUES (HIBERNATE_SEQUENCE.NEXTVAL, 'country', 'col00', 'integer', 'country_id');

Finally the XML definition:

  • In the optionsQuery the values that begins with character $ are identified as column names. See $country_id and $country_name below.
  • Can use normal SQL clausules like "lower", "like", "order by", etc.
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE property-groups PUBLIC "-//OpenKM//DTD Property Groups 2.3//EN"
                                 "http://www.openkm.com/dtd/property-groups-2.3.dtd">
<property-groups>
  <property-group label="Consulting" name="okg:consulting">
	 <suggestbox label="country" name="okp:consulting.suggestbox" width="200px"
	   table="country" dialogTitle="Choose country" filterMinLen="3"
	   filterQuery="select $country_id, $country_name from DatabaseMetadataValue dmv where dmv.table='country' and lower(dmv.$country_name) like '%{0}%' order by dmv.$country_name"
	   valueQuery="select $country_id, $country_name from DatabaseMetadataValue dmv where dmv.table='country' and dmv.$country_id='{0}'" />
  </property-group>
</property-groups>