Differences

This shows you the differences between two versions of the page.

Link to this comparison view

Both sides previous revision Previous revision
Next revision		 Previous revision
docs:2000_concepts:0600_data_retrieval:0100_config_queries [2022/09/01 01:23] – ↷ Links adapted because of a move operation administratordocs:2000_concepts:0600_data_retrieval:0100_config_queries [2025/06/12 02:09] (current) – Rename to AwareIM aware_support3
Line 1: Line 1:
 +{{tag>data data_retrieval query user_interface UI concepts}}
 [<10>] [<10>]
 ====== Configuring Queries ====== ====== Configuring Queries ======
Line 6: Line 7:
 When defining a query the configurator has to indicate the business object, (or [[docs:2000_concepts:0200_basics:0600_business_object_groups|business object group]]) the instances of which the query will be searching. Then the configurator has to indicate the conditions of search – only those instances of the business object that have attribute values matching the specified conditions will be retrieved by the query (if conditions are not specified all instances of the business object will be retrieved). For example, if a query is to retrieve accounts of John Smith, the query has to include a condition that compares the value of the ''OwnerName'' attribute with ‘John Smith’: When defining a query the configurator has to indicate the business object, (or [[docs:2000_concepts:0200_basics:0600_business_object_groups|business object group]]) the instances of which the query will be searching. Then the configurator has to indicate the conditions of search – only those instances of the business object that have attribute values matching the specified conditions will be retrieved by the query (if conditions are not specified all instances of the business object will be retrieved). For example, if a query is to retrieve accounts of John Smith, the query has to include a condition that compares the value of the ''OwnerName'' attribute with ‘John Smith’:
  
-<code aim> FIND Account WHERE Account.OwnerName = 'John Smith'</code>+<code aim>FIND Account WHERE Account.OwnerName = 'John Smith' </code>
  
 One can define multiple conditions for a query – the conditions may be linked with the ''AND'' or ''OR'' keywords.  One can define multiple conditions for a query – the conditions may be linked with the ''AND'' or ''OR'' keywords. 
Line 12: Line 13:
 Note that query conditions allow specifying not only attributes of the business object that the query will be searching, but also attributes of the related objects. For example, if account owner is a ''Customer'' object related to the ''Account'' object via the Owner reference attribute, the above query could be specified as follows: Note that query conditions allow specifying not only attributes of the business object that the query will be searching, but also attributes of the related objects. For example, if account owner is a ''Customer'' object related to the ''Account'' object via the Owner reference attribute, the above query could be specified as follows:
  
-<code aim> FIND Account WHERE Account.Owner.Name = 'John Smith' </code>+<code aim>FIND Account WHERE Account.Owner.Name = 'John Smith'  </code>
  
  
Line 25: Line 26:
 <callout type="primary" icon="true" title="note"> It is possible to define a query with conditions that use attributes of a business object that the query is not searching for (they are also called //dynamically resolved// attributes or simply //dynamic// attributes). Consider the following query as an example: <callout type="primary" icon="true" title="note"> It is possible to define a query with conditions that use attributes of a business object that the query is not searching for (they are also called //dynamically resolved// attributes or simply //dynamic// attributes). Consider the following query as an example:
  
-<code aim>FIND Account WHERE Account.OwnerName = Customer.Name</code>+<code aim>FIND Account WHERE Account.OwnerName = Customer.Name </code>
  
-The business object Customer used in a query condition is not the object that the query is searching for. //**Aware IM**// replaces references to such attributes with the actual values at run time – just before the search is performed. For example, if the value of the Name attribute of the Customer object is ‘John Smith’ the actual query performed by //**Aware IM**// is:  +The business object Customer used in a query condition is not the object that the query is searching for. //**AwareIM**// replaces references to such attributes with the actual values at run time – just before the search is performed. For example, if the value of the Name attribute of the Customer object is ‘John Smith’ the actual query performed by //**AwareIM**// is:  
  
-<code aim>FIND Account WHERE Account.OwnerName = 'John Smith'</code>+<code aim>FIND Account WHERE Account.OwnerName = 'John Smith' </code>
  
  
-Where does //**Aware IM**// find the instance of the Customer object and what happens if there are no instances of this object or if there are more than one instance? The answer to the first part of the question is that the instance is taken from the Context (this is explained in the [[docs:2000_concepts:0800_data_processing:0100_rule_evaluation:0800_context_rule_execution:0300_other_uses_context|Other Usages of Context]] section); the answer to the second part is that if //**Aware IM**// cannot find the instance of the object in the Context it logs a run-time error and the query is not run. The queries using dynamic attributes should only be used in situations where such attributes can be unambiguously resolved.+Where does //**AwareIM**// find the instance of the Customer object and what happens if there are no instances of this object or if there are more than one instance? The answer to the first part of the question is that the instance is taken from the Context (this is explained in the [[docs:2000_concepts:0800_data_processing:0100_rule_evaluation:0800_context_rule_execution:0300_other_uses_context|Other Usages of Context]] section); the answer to the second part is that if //**AwareIM**// cannot find the instance of the object in the Context it logs a run-time error and the query is not run. The queries using dynamic attributes should only be used in situations where such attributes can be unambiguously resolved.
  
 See also [[docs:2000_concepts:0600_data_retrieval:0110_queries_user_input|Queries that Require User Input]] See also [[docs:2000_concepts:0600_data_retrieval:0110_queries_user_input|Queries that Require User Input]]
  • Last modified: 2022/09/13 18:07