Drupal

UPDATE is the Data Manipulation Language(DML) query in Database management system. Using the object of core Drupal class we can perform database queries in Drupal 8. Update is the data modifying query used to change data in Database. The update() is a function of Drupal 8 core class used for update records. Below is syntax and example of how to use INSERT query in Drupal 8.

Using the object of core Drupal class we can perform database queries. Select is the data retrieval query that has been done with help of select() of Drupal 8 core class. Below sample show how to use select query in Drupal 8.

Insert is the Data Manipulation Language(DML) query in Database management system. Using the object of core Drupal class we can perform database queries in Drupal 8. Insert is the data saving query used to store data to Database. The insert() is a function of Drupal 8 core class used for insert records. Below is syntax and example of how to use INSERT query in Drupal 8.

In Drupal 7 Profile2 module help to create user profiles. The Profile2 module handle each profiles as separate entity with set of Drupal fields. Similar to changing user account we can change profile values. Below example show how to access profile values and updating profile values.

In Drupal by Taxonomy term list are arranged as parent child format. Similarly we can able to create List option in our custom form. Below is the source code to generate option array as Parent child hierarchy. List key is Term ID and display name is Taxonomy term hierarchy.

In Drupal HOOK are used to alter values or construct values to program. It similar to implementing class in Object Oriented Concepts. In Core and Contributed modules create their HOOK functions for extending functionality. In custom module we can able to create our custom HOOK to alter data from other modules.This is achieved by using the function drupal_alter().

By Default Drupal Views show the fields that are configured in UI. Based on our requirements we can able to add custom fields to view on rendering. This feature is achieved by using the HOOK hook_views_pre_view(). Using the object of $view we can call function “add_item()” this will add the fields to the View.

In Drupal 7 we can able to alter or reset title for page by calling the function drupal_set_title(). This function accepts string of title as argument.

In Drupal 8 Vocabulary information are handled by Core module taxonomy as a separate entity. With help of Vocabulary class we can access the taxonomy vocabulary informations.

In Drupal 8 Content types are considered as Entity. The Entity information are handled by Core service [\Drupal::service('entity.manager')]. By using the entity object we can access the content type and its properties by calling the function “getStorage” with argument of node_type.

In Drupal 8 we can able to programmatically create files in sites file system. By using function “file_save_data()” from Files module from core. This function accepts parameter of file content with optional parameter as destination and replacement type.

In Drupal 8 core service object help us to get real or absolute path for file from server. Services function with “stream_wrapper_manager” argument help us to access the real path.

In Drupal 7 we can able to create ordered and unordered item list by using function theme(), with ‘item_list’ and an array of options as value for constructing list. Below example shows how to create item list in Drupal 7.

In Drupal there is function drupal_add_js(). It help to JS files to loading files. By calling this function we can able to Add JavaScript file and Script codes. By additional we can able to specify weight of loading script codes.

We can able to create taxonomy terms in Drupal 7 by calling function taxonomy_term_save(). This function accepts term data as object of argument. Below example show how to create taxonomy term.

In Drupal 7 we render view by calling the function views_get_view(), this function render returns view results. Normally we filter view result by specifying filters in view or exposed filters. For programmatically rendering view we need specify the exposed filter value in object of view.

In Drupal we can able to render programmatically by calling the function views_get_view(). This function return a object, by rendering the object we can able to show the view. This function accepts view name as parameter.

ApacheSolr is the effective method to search the our site contents. With help of ApacheSolr module we can able to index site contents in apache solr server. To get solr server content from using function “apachesolr_search_execute”. This function return searched results as array.

In Drupal “Services” module help to create services for us. We can also able to create our own services in our custom modules. This can be achieved implementing hook_services(), this hook help to define our service type and service functionality.

To check given path is Drupal system path or not by using below functions. It check all Drupal system and modules path. It accepts string of path is argument return TRUE if valid path else FALSE if non exist path. We can able to pass wild cards for dynamic paths. For example node/*, comment/*. This function will check these type of paths also.