I am new to drupal, working on custom module, here is my .install file code, but its not creating table in database when I install module. can anyone please tell me where I am wrong
<?php
function make_application_schema()
{
$schema['make_master'] = array(
'description' => 'Make master table',
'fields' => array(
'make_id' => array(
'description' => 'make id primary key auto increment',
'type' => 'serial',
'not null' => TRUE,
),
'make_name' => array(
'description' => 'Make name',
'type' => 'varchar',
'length' => '100',
'not null' => TRUE,
),
'make_status' => array(
'description' => 'check make status',
'type' => 'int',
'size' => 'tiny',
'not null' => TRUE,
),
),
'primary key' => array('make_id'),
);
return $schema;
}
function make_application_install()
{
}
function make_application_uninstall()
{
}
What is the name of your module? When you are installing and you use hook_schema, you should name your function like this:
my_module.module
In my_module.install
function my_module_schema () ....
And... after that, this should be work :)
In order to install your database 'make_master' you have to call drupal_install_schema with your module name:
drupal_install_schema('make_application');
according to your question I think you have forgot to call drupal_install_schema function. Here are updated make_application_install and make_application_uninstall of your make_application.install.
function make_application_install() {
// Use schema API to create database table.
drupal_install_schema('make_master');
}
function make_application_uninstall() {
// Remove tables.
drupal_uninstall_schema('make_master');
}
NOTE
The tables won't install on module enable, they will only install on first-time install. First, disable the module, then click the 'uninstall' tab, select the module, and uninstall it (note: if your module doesn't have a hook_uninstall() function, it won't appear here - make sure you have added this function). Then, click the list tab, and re-enable your module. This is a first-time install, and the tables will install.
Either that or use the devel module, enable the development block and then use the 'reinstall modules' link in the block.
You can refer this link for more info : https://www.drupal.org/node/811594
Related
I try to add some fields to content type through this hook as it done in node_example module in Drupal 7 examples but it's not even invoked. What can be wrong?
function education_node_type_insert($content_type){
$fields = _anketa_installed_fields();
foreach($fields as $field){
field_create_field($field);
}
$instances = _anketa_installed_instances();
foreach($instances as $instance){
$instance['entity_type'] = 'node';
$instance['bundle'] = 'anketa';
field_create_field($instance);
}
}
When you disable a node module and uninstall it Drupal doesn't clear out the entries in the node_type table for the node types associated with your module (i would call this a bug in Drupal core). If those entries remain; the hook_node_type_insert hook does not get run when you re-enable the module.
If you first delete those entries manually from the node_type table; the hook should run.
Had you already run this before trying to add the fields? Because the education_node_type_insert($type) function is not called if the node type $type is already in the node_type database table, which it will be after the first time that this is run.
I think the correct way to do this is to add the fields in an implementation of hook_install instead (in yourmod.install, and checking at the same time whether they've already been added perhaps).
Also, during development, you need to uninstall-reinstall (e.g. drush dis -y yourmod && drush uninstall -y yourmod && drush en -y yourmod) every time you make a change to the fields.
Have you tried uninstalling (Not disable, but really uninstall after you disable it from Uninstall tab) the module and re-enabling it again?
When working on custom modules - whether building, debugging, QAing, migrating, updating, etc- the following steps often help. Without looking at your code closely, I'd suggest trying these steps:
Disable the module, uninstall/reinstall (if ok to wipe the module data from the DB), re-enable the module then run update.php. Check Drupal & PHP/MySQL logs, run cron.php clear browser & Drupal cache, logout & log back in, edit roles & perms. Rinse. Repeat... often knocks unexplainable issues loose.
Also this all assumes you've already confirmed overall module architecture & function name/spellings are ok. If all else fails, try installing on another instance to see if the issue can be replicated.
You will need to actually delete your node type manually after the first install.
function example_uninstall () {
node_type_delete ('my_type');
}
There are probably good reasons why Drupal doesn't do this by default: what's the correct behaviour?
Why don't you use hook_node_insert?
It's a working example for adding components to every new webform:
/**
* Implements hook_node_insert().
*/
function modulename_node_insert($node) {
if($node->type == 'webform' && $node->is_new) {
module_load_include('inc', 'webform', 'includes/webform.components');
$components = array();
$components[0] = array(
'name' => 'Submitted Page URL',
'nid' => $node->nid,
'form_key' => 'hidden_submitted_page_url',
'type' => 'hidden',
'mandatory' => 0,
'weight' => 99,
'pid' => 0,
'value' => '',
'required' => 0,
'extra' => array(
'hidden_type' => 'hidden',
'description' => '',
'wrapper_classes' => 'hidden-submitted-page-url-wrap',
'css_classes' => 'hidden-submitted-page-url',
'private' => 0,
),
);
$components[1] = array(
'name' => 'Referrer Page URL',
'nid' => $node->nid,
'form_key' => 'hidden_referrer_page_url',
'type' => 'hidden',
'mandatory' => 0,
'weight' => 99,
'pid' => 0,
'value' => '',
'required' => 0,
'extra' => array(
'hidden_type' => 'hidden',
'description' => '',
'wrapper_classes' => 'hidden-referrer-page-url-wrap',
'css_classes' => 'hidden-referrer-page-url',
'private' => 0,
),
);
foreach ($components as $component) {
webform_component_insert($component);
}
}
}
I have an install file in place which creates a table when the module is first enabled. Halfway into the use of the module, I want to update the table with an additional column I write the code for it as
'salary' => array(
'description' => t('Salary: '),
'type' => 'int',
'unsigned'=> TRUE,
'not null' => TRUE,
),
This goes within the schema definition. Now to add it to the database , I use the update function as
function test_update_6001(){
$ret = array();
$spec = array(
'description' => t('Salary: '),
'type' => 'int',
'unsigned'=> TRUE,
'not null' => TRUE,
);
db_add_field($ret,'info','salary',$spec); //info is the tablename and salary is the column to be added
return $ret;
drupal_install_schema('stalker');
}
This is not updating the schema. Am i missing a step?
Make sure you include it in the original hook_schema() function and not just in the update function.
You don't need to call the drupal_install_schema after the return, but it's not the cause anyway. There's no error when you run the update.php script?
I have a module with four node types declared. My problem is, hook_load, hook_view is never called. I used drupal_set_message to find out if certain hook is being called. And I found out hook_load, hook_view isn't. Just to give you clear picture, here's my structure of hook_load
HERE'S UPDATED ONE
function mymodule_node_info(){
return array(
'nodetype1' => array(
'name' => t('nodetype1'),
'module' => 'mymodule_nodetype1',
'description' => t('....'),
'has_title' => TRUE,
'title_label' => t('Title'),
'has_body' => TRUE,
'body_label' => t('Body'),
),
'nodetype2' => array(
......
'module' => 'mymodule_nodetype2',
......
),
'nodetype3' => array(
......
'module' => 'mymodule_nodetype3',
......
),
'nodetype4' => array(
......
'module' => 'mymodule_nodetype4',
.......
),
);
}
function mymodule_nodetype1_load($node){
$result = db_query('SELECT * from {nodetype1table} WHERE vid = %d'
$node->vid
);
drupal_set_message("hook_load is provoked.","status");
return db_fetch_object($result);
}
I don't know why it is not called. I wrote this code base on drupal module writing book and follow the instructions. I've tried sample code from that book and it works ok. Only my code isn't working. Probably because of multiple node types in one module. Any help would be highly appreciated.
Your code doesn't work because hook_load() and hook_view() aren't module hooks: they're node hooks. The invocation is based off of content type names, not module names.
So, first you need to have declared your content types using hook_node_info():
function mymodule_node_info() {
$items = array();
$items['nodetype1'] = array(
'name' => t('Node Type 2'),
'module' => 'mymodule_nodetype1',
'description' => t("Nodetype 1 description"),
);
$items['nodetype2'] = array(
'name' => t('Node Type 2'),
'module' => 'mymodule_nodetype2',
'description' => t("Nodetype 2 description"),
);
$items['nodetype3'] = array(
'name' => t('Node Type 2'),
'module' => 'mymodule_nodetype3',
'description' => t("Nodetype 3 description"),
);
return $items;
}
Then, you need to use the name of the module you specified for each content type declared in hook_node_info() for your node hooks. That is, mymodule_nodetype1_load(), mymodule_nodetype2_view(), etc.
Edit
If you're trying to have a non-node based module fire when a node is viewed or loaded, you need to use hook_nodeapi():
function mymodule_nodeapi(&$node, $op, $a3 = NULL, $a4 = NULL) {
switch ($op) {
case 'view':
mymodule_view_function($node);
break;
case 'load':
mymodule_load_function($node);
break;
}
}
Replace mymodule_load_function() and mymodule_load_function() with your own custom functions that are designed to act on the $node object.
Edit 2
Besides the syntax error in your hook_load() implementations, there's a piece of your code outside of what you're providing that's preventing the correct invocation. The following code works (if you create a nodetype1 node, the message "mymodule_nodetype1_load invoked" appears on the node): perhaps you can compare your entire code to see what you're missing.
function mymodule_node_info() {
return array(
'mymodule_nodetype1' => array(
'name' => t('nodetype1'),
'module' => 'mymodule_nodetype1',
'description' => t('....'),
'has_title' => TRUE,
'title_label' => t('Title'),
'has_body' => TRUE,
'body_label' => t('Body'),
),
'mymodule_nodetype2' => array(
'name' => t('nodetype2'),
'module' => 'mymodule_nodetype2',
'description' => t('....'),
'has_title' => TRUE,
'title_label' => t('Title'),
'has_body' => TRUE,
'body_label' => t('Body'),
),
);
}
function mymodule_nodetype1_form(&$node, $form_state) {
// nodetype1 form elements go here
return $form;
}
function mymodule_nodetype2_form(&$node, $form_state) {
// nodetype2 form elements go here
return $form;
}
function mymodule_nodetype1_load($node) {
$additions = new stdClass();
drupal_set_message('mymodule_nodetype1_load invoked');
return $additions;
}
function mymodule_nodetype2_load($node) {
$additions = new stdClass();
drupal_set_message('mymodule_nodetype2_load invoked');
return $additions;
}
If you're not reseting your environment after changes to your module, you might be running into caching issues. You should test your code in a sandbox environment that can be reset to a clean Drupal installation to ensure you're not focusing on old cruft from previous, incorrect node implementations.
Additionally, you should only be using hook_nodeapi() if you are trying to act on content types that are not defined by your module. Your content types should be using the node hooks (hook_load(), hook_view(), etc.).
Finally, it may be the case that you're using the wrong hooks because you're expecting them to fire in places they are not designed to. If you've gone through everything above, please update your post with the functionality you're expecting to achieve and where you expect the hook to fire.
I found the culprit why your code doesn't work. It's because I was using the test data created by the old codes. In my old codes, because of node declaration inside hook_node_info uses the same module value, I could only create one hook_form implementation and use "switch" statement to return appropriate form. Just to give you clear picture of my old codes-
function mymodule_node_info(){
return array(
'nodetype1' => array(
.....
'module' => 'mymodule',
.....
),
'nodetype2' => array(
......
'module' => 'mymodule',
......
),
.......
);
}
function mymodule_form(&$node, $form_state){
switch($node->type){
case 'nodetype1':
return nodetype1_form();
break;
case 'nodetype2':
return nodetype2_form();
break;
.....
}
}
When I created new data after I made those changes you have provided, hook_load is called. It works! I've tested several times(testing with old data created by previous code and testing with new data created after those changes) to make sure if that's the root cause and, I got the same result.I think drupal store form_id or module entry value of node declaration along with data and determine the hook_load call. That's probably the reason why it doesn't think it's a data of this node and thus hook_load isn't invoked.
And Thank you so much for your help.
I'm having a weird problem with hook_view. The problem is, hook_view isn't invoked unless hook_load returns invalid value such as empty variable. I don't know what causes this to happen and I'm at my wit's end. I'm very much appreciate your help. For what is worth, I have image attach module installed.
Drupal 6.x
UPDATE
function mymodule_node_info(){
return array(
'nodetype1' => array(
'name' => t('nodetype1'),
'module' => 'mymodule_nodetype1',
'description' => t('....'),
'has_title' => TRUE,
'title_label' => t('Title'),
'has_body' => TRUE,
'body_label' => t('Body'),
),
'nodetype2' => array(
......
'module' => 'mymodule_nodetype2',
......
),
'nodetype3' => array(
......
'module' => 'mymodule_nodetype3',
......
),
'nodetype4' => array(
......
'module' => 'mymodule_nodetype4',
.......
),
);
}
function mymodule_nodetype1_load($node){
$query = 'SELECT f1,f2,...,f10 FROM {tb1} INNER JOIN {tb2} ON {tb1}.vid = {tb2}.vid WHERE {tb1}.vid = %d';
$result = db_query($query,$node->vid);
return db_fetch_object($result);
}
function mymodule_nodetype1_view($node, $teaser = FALSE, $page = FALSE){
$node = node_prepare($node, $teaser); // get it ready for display
$f1 = check_markup($node->f1);
..............
$f10 = check_markup($node->f10);
// Add theme stuff here
$node->content['mycontent'] = array(
'#value' => theme('defaultskin', $f1,...,$f10),
'#weight' => 1,
);
return $node;
}
function mymodule_theme(){
return array(
'defaultskin' => array(
'template' => 'node-defaultskin',
'arguments' => array(
'f1' => NULL,
......
'f10' => NULL,
),
),
);
}
I found the culprit. Just in case somebody run into same problem I did, here's why - I named one field as "TYPE" and, when I retrieved recordset inside hook_load with drupal_fetch_object, I believe, the resulted object's member name "type" might have caused some naming conflict with drupal core member. As a result, this causes it to not invoke hook_view. After I renamed my field to something different, it works like charm. So, never name field as "Type". You guys might have knew that too but, due to my intention to make code easier to read, I renamed those fields to much simpler ones (f1,...f10). Sorry for the trouble. And thanks everyone for your effort.
cheers
This hook is meant for usage in a node module(so a module that itself creates a new node type), I assume you're using it for nodes defined by Drupal or CKK or another module, if so, use hook_nodeapi() instead with the view argument.
http://api.drupal.org/api/function/hook_nodeapi/6
1) Where is the best place to populate a new database table when a module is first installed, enabled? I need to go and get some data from an external source and want to do it transparently when the user installs/enables my custom module.
I create the schema in {mymodule}_schema(), do drupal_install_schema({tablename}); in hook_install. Then I try to populate the table in hook_enable using drupal_write_record.
I confirmed the table was created, I get no errors when hook_enable executes, but when I query the new table, I get no rows back--it's empty.
Here's one variation of the code I've tried:
/**
* Implementation of hook_schema()
*/
function ncbi_subsites_schema() {
// we know it's MYSQL, so no need to check
$schema['ncbi_subsites_sites'] = array(
'description' => 'The base table for subsites',
'fields' => array(
'site_id' => array(
'description' => 'Primary id for site',
'type' => 'serial',
'unsigned' => TRUE,
'not null' => TRUE,
), // end site_id
'title' => array(
'description' => 'The title of the subsite',
'type' => 'varchar',
'length' => 255,
'not null' => TRUE,
'default' => '',
), //end title field
'url' => array(
'description' => 'The URL of the subsite in Production',
'type' => 'varchar',
'length' => 255,
'default' => '',
), //end url field
), //end fields
'unique keys' => array(
'site_id'=> array('site_id'),
'title' => array('title'),
), //end unique keys
'primary_key' => array('site_id'),
); // end schema
return $schema;
}
Here's hook_install:
function ncbi_subsites_install() {
drupal_install_schema('ncbi_subsites');
}
Here's hook_enable:
function ncbi_subsites_enable() {
drupal_get_schema('ncbi_subsites_site');
// my helper function to get data for table (not shown)
$subsites = ncbi_subsites_get_subsites();
foreach( $subsites as $name=>$attrs ) {
$record = new stdClass();
$record->title = $name;
$record->url = $attrs['homepage'];
drupal_write_record( 'ncbi_subsites_sites', $record );
}
}
Can someone tell me what I'm missing?
If ncbi_subsites_get_subsites() is not in the .install file, you need to include whatever file its in with your module. Otherwise, it's returning nothing, in which case try dumping $subsites and exiting.
I think the answer is that drupal_write_record is not meant for install or enable hooks. I think when enabling or installing, you have to write SQL. That is the impression I am getting from reading some posts that mention that the schema is not available in these hooks.
First of all (assuming Drupal 6), drupal_write_record() cannot be called from hook_install() because Drupal would not find the database schema defined from the module, which is still going to be installed, and enabled.
Instead you need to use db_query() function. (the comments are speaking of a way to include default data by prviding it to hook_schema() serialized, but i've found no documentation on this.)
However, would you be using (the development version of) Drupal 7, you want to look at the db_insert() function instead.