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RatanPaul/EmailLogic.cls

Forked from jsullivanlive/EmailLogic.cls
Created April 29, 2020 08:00
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  1. James Sullivan created this gist Feb 8, 2016.
    80 changes: 80 additions & 0 deletions EmailLogic.cls
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    Original file line number Diff line number Diff line change
    @@ -0,0 +1,80 @@
    public class EmailLogic {

    public static String renderTemplate(sObject sobj, String template) {
    for (String fieldName : fields(sobj.getSObjectType())) {
    String key = '{!' + fieldName + '}';
    while (template.containsIgnoreCase(key)) {
    try {
    Integer foundPosition = template.indexOfIgnoreCase(key, 0);
    template = template.left(foundPosition) +
    String.valueOf(sobj.get(fieldName)) +
    template.substring(foundPosition + key.length());
    } catch (Exception e) {
    // ignoring field not queried error for now because not sure if we want to query everything
    }
    }
    }
    return template;
    }

    public static String renderTemplate(Id id, String template) {
    Schema.sObjectType t = id.getSObjectType();
    String query =
    'select ' + joinStrings(',', queryableFields(t)) +
    ' from ' + t +
    ' where Id = :id ';
    for (sObject sobj : Database.query(query)) {
    return renderTemplate(sobj, template);
    }
    return null;
    }

    private static String joinStrings (String delimiter, Set<String> items) {
    String result = '';
    for (String item : items) {
    if (result != '') result += delimiter;
    result += item;
    }
    return result;
    }

    private static Set<String> fields(Schema.sObjectType t) {
    Set<String> result = new Set<String>();
    Map<String, Schema.SObjectField> fields = t.getDescribe().fields.getMap();
    return fields.keySet();
    }

    private static Set<String> editableFields(Schema.sObjectType t) {
    Set<String> result = new Set<String>();
    Map<String, Schema.SObjectField> fields = t.getDescribe().fields.getMap();
    for(String fieldName : fields.keySet()) {
    if(fields.get(fieldName).getDescribe().isUpdateable()) {
    result.add(fieldName);
    }
    }
    return result;
    }

    private static Set<String> queryableFields(Schema.sObjectType t) {
    Set<String> result = new Set<String>();
    Map<String, Schema.SObjectField> fields = t.getDescribe().fields.getMap();
    for(String fieldName : fields.keySet()) {
    if(fields.get(fieldName).getDescribe().isUpdateable()) {
    result.add(fieldName);
    }
    }
    return result;
    }

    private static Set<String> createableFields(Schema.sObjectType t) {
    Set<String> result = new Set<String>();
    Map<String, Schema.SObjectField> fields = t.getDescribe().fields.getMap();
    for(String fieldName : fields.keySet()) {
    if(fields.get(fieldName).getDescribe().isCreateable()) {
    result.add(fieldName);
    }
    }
    return result;
    }

    }
    36 changes: 36 additions & 0 deletions EmailLogicTests.cls
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    Original file line number Diff line number Diff line change
    @@ -0,0 +1,36 @@
    @isTest
    private class EmailLogicTests {

    @isTest static void editableField () {
    System.assertEquals(
    '___TEST___',
    EmailLogic.renderTemplate(
    new Account(Name='TEST'),
    '___{!name}___'
    )
    );
    }

    @isTest static void caseInsensitive () {
    System.assertEquals(
    '___TEST___',
    EmailLogic.renderTemplate(
    new Account(Name='TEST'),
    '___{!NamE}___'
    )
    );
    }

    @isTest static void id() {
    // Implement test code
    TestFactory.accountSetup();
    System.assertEquals(
    '___'+TestFactory.testAccount.Id+'___',
    EmailLogic.renderTemplate(
    TestFactory.testAccount,
    '___{!id}___'
    )
    );
    }

    }