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<?php
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class Attribute {
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protected static $dbStructure = array(
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'Entry Point' => 'attribute_value',
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'Summary Query' => '
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select
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attribute_category.name category,
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attribute.name attribute,
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attribute_value.value
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from
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attribute_value
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join attribute using (attribute_id)
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join attribute_category using (attribute_category_id)
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where
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1=1
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and attribute.display_in_summary
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and attribute_value.removed is null
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and entity_id = ~~id~~
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and _base_class_id = ~~class~~
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order by
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attribute_category.sort_order,
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attribute_category.name,
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attribute.sort_order,
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attribute.name,
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attribute_value.value
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',
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'tables' => array(
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'attribute_value' => array(
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'Primary Key' => 'attribute_value_id',
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'comment' => 'attributes for entities (devices, locations, owners)',
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'fields' => array(
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'attribute_id' => array(
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'type' => 'foreign key',
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'target' => 'attribute'
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),
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'_base_class_id' => array(
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'type' => 'foreign key',
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'target' => '_base_class'
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),
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'entity' => array(
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'type' => 'foreign key',
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'target' => '',
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'comment' => 'references ${_base_class}.{id}',
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),
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'value' => array(
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'type' => 'text',
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'default' => '',
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'comment' => 'the actual value stored'
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),
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'added' => array(
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'type' => 'date',
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'default' => 'now()'
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),
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'removed' -> array(
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'type' => 'date',
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'default' => 'null'
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)
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) // fields
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), // attribute_value table
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'attribute' => array(
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'Primary Key' => 'attribute_id',
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'comment' => 'stores attribute names (not values) for other tables',
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'fields' => array(
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'name' => array(
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'type' => 'varchar',
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'size' => 64,
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'null' => false,
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'comment' => 'name for display',
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'summary field' => true
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),
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'attribute_category_id' => array(
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'type' => 'foreign key',
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'target' => 'attribute_category'
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),
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'multiples' => array(
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'type' => 'bool',
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'default' => 0,
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'comment' => 'if set, multiple instances of the same attribute are allowed',
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),
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'display_in_summary' => array(
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'type' => 'bool',
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'default' => 0,
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'comment' => 'if true, indicates it should be displayed when device/site/client screen is open',
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)
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'added' => array(
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'type' => 'date',
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'default' => 'now()'
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),
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'removed' -> array(
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'type' => 'date',
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'default' => 'null'
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)
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), // fields
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), // attributes
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'attribute_category' => array(
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'primary key' => 'attribute_category_id',
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'comment' => 'categorizes attributes',
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'fields' => array(
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'name' => array(
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'type' => 'varchar',
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'size' => 64,
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'null' => false,
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'comment' => 'display name for category',
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),
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) // fields
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), // attribute_category
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) // tables
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); // $dbStructure
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/**
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* returns HTML table with summary of class for a particular entity
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*
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* The entity ID is passed as the first class, and the class optionally as the second, to allow
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* for classes which serve more than one base class (owner, location, device). Will return all rows
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* related to the base class.
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*
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* @parameter $id int The entity id to retrieve for, ie device_id, owner_id, location_id
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* @parameter $class string The name of the class for which we are to retrieve values
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*
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* @returns string An HTML table with the summary of the current entries
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*/
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public static function summaryTable( $id, $class = null ) {
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$query = $this->dbStructure['Summary Query'];
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} // function summaryTable
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}
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?>
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