How to get the list of fields of sobject?

How to get the list of fields of sobject?

The below code will display all the fields from the object resource__c, but I want only the fields in the query entered by the user. Map schemaFieldMap = Schema.SObjectType.resource__c.fields.getMap (); for (String fieldName: schemaFieldMap.keySet ()) { options.add (new SelectOption (fieldName, fieldName)); }

How to find all required fields of sobject in Salesforce?

Schema Describe calls provides the ability to programitically describe the information about the current org schema such as list of top level objects including custom objects and their fields. Returns map of all Sobjects names or Keys to sObject tokens or values for the standard and custom objects defined in the organization.

Can a sobject be cast to a generic sobject?

One of the benefits of doing so is to be able to access fields using dot notation, which is not available on the generic sObject. Since sObject is a parent type for all specific sObject types, you can cast a generic sObject to a specific sObject.

How to grant permission to a SELECT statement?

Use the SELECT privilege type to grant permission to perform SELECT statements or SelectExpressions on a table or view. If a column list is specified with the SELECT privilege, the permission is valid on only those columns. If no column list is specified, then the privilege is valid on all of the columns in the table.

How can I access a sobject field in apex?

As in Java, SObject fields can be accessed or changed with simple dot notation. For example: System-generated fields, such as Created By or Last Modified Date, cannot be modified. If you try, the Apex runtime engine generates an error.

What happens when a sobject field is null?

If the field is false or null, the expression evaluates to false. This example code shows an expression that checks if the IsActive field of a Campaign object is null. Because this expression always evaluates to false, the code in the if statement is never executed.

When does an expression with sobject field evaluate to true?

An expression with SObject fields of type Boolean evaluates to true only if the SObject field is true. If the field is false or null, the expression evaluates to false.

How to retrieve fields for sobject using APEX?

Apex has a class called Schema. It includes all the schema of your organization. Objects, their fields, field type etc. can all retrieved using schema class. Alternative of hard-coding this list, which is not sustainable or repairing it regularly, a good approach is to use Salesforce field describe results methods.

How to retrive a query using the sobject?

Assuming you have the account record in a variable called ‘acc’, you can execute: no i want to retrive a query by using the sobject can u help me without hardcording the contact here Ah, so you are looking to create a dynamic soql query where the sobject name isn’t known until run time? yes am trying for it only can u help me for that

How to declare a query by using sobject in Salesforce?

How to declare a query by using sobject in salesforce . Are you looking to retrieve related records based on a particular record instance? If so, you can use something like the following (account/contacts used in this example). Assuming you have the account record in a variable called ‘acc’, you can execute:

How to get the sobject type from a controller?

Describe result—an object that contains all the describe properties for the sObject or field. Describe result objects are not serializable, and are validated at runtime.

How to check dynamic get methods in sobject instance?

Check all dynamic get* methods in the Sobject instance methods docs. Thanks for contributing an answer to Salesforce Stack Exchange! Please be sure to answer the question. Provide details and share your research! But avoid … Asking for help, clarification, or responding to other answers.

Can you use recordtype ID in Force.com?

If you want to develop an industrial-strength Force.com application, i.e. an AppExchange app, you CANNOT rely on either the Id or Name fields of RecordTypes as a means of getting at a desired RecordType for a given object. Why?

What would the best approach to get the recordtype ID?

TO use this to accomplish your need within a Trigger or other Apex scenario, you can just do this:

How to get the account sobjecttype in apex?

// Get all Active Account RecordTypes that are available to the running user Map accountTypes = Utils.GetRecordTypeIdsByDeveloperName (Account.SObjectType); for (Account a : Trigger.new) { // ATTEMPT to assign a different RecordType to this Account // if it has tons of employees.