{"id":3591,"date":"2024-09-16T05:19:40","date_gmt":"2024-09-16T05:19:40","guid":{"rendered":"https:\/\/www.rcvtechnologies.com\/blog\/?p=3591"},"modified":"2024-11-13T12:35:22","modified_gmt":"2024-11-13T12:35:22","slug":"opencart-4-single-instance-and-multi-instance-module","status":"publish","type":"post","link":"https:\/\/www.rcvtechnologies.com\/blog\/opencart-4-single-instance-and-multi-instance-module\/","title":{"rendered":"Opencart 4 Single Instance and Multi Instance module"},"content":{"rendered":"

Difference between Single Instance and Multi Instance Module<\/h2>\n

In a single instance module, you install and can create only one setting, which can be used in multiple places. In a multi-instance module, you can install, create multiple modules, and configure different settings, allowing for the use of varied content in multiple places.<\/p>\n

Single Instance Opencart module<\/strong><\/h2>\n

After installation, it will create only one module.<\/p>\n

Example of core available single instance Opencart module are:<\/strong> Account module, Category module, Information module, etc.<\/p>\n

Admin section code<\/strong><\/h3>\n
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$this->load->model(\u2018setting\/setting\u2019);\r\n\r\n$this->model_setting_setting->editSetting(\u2018module_name\u2019, $this->request->post);<\/pre>\n
<\/code><\/pre>\n\t\t\t<\/div>\n        <\/div>\n
The name of the form field should start with the extension initials. For example, for the module, it would be something like name=”module_*****”.<\/p>\n
Catalog section code:<\/strong><\/h3>\n
The main difference in the controller is in the index method.
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public function index() {}<\/pre>\n
<\/code><\/pre>\n\t\t\t<\/div>\n        <\/div><\/p>\n
Data are saved in the oc_setting database table.<\/p>\n
Multi-Instance Opencart module<\/strong><\/h2>\n
After installation, you can create as many modules as needed.<\/p>\n
Example of core available multi instance Opencart module are:<\/strong> Banner, Featured.<\/p>\n
Admin section code<\/strong><\/h3>\n
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$this->load->model(\u2018setting\/module\u2019);\r\n\r\nif (!isset($this->request->get[\u2018module_id\u2019])) {\r\n$this->model_setting_module->addModule(\u2018bestseller\u2019, $this->request->post);\r\n} else {\r\n$this->model_setting_module->editModule($this->request->get[\u2018module_id\u2019], $this->request->post);\r\n}<\/pre>\n
<\/code><\/pre>\n\t\t\t<\/div>\n        <\/div>\n
Data are saved in the oc_module database table. In the oc_layout database table, the code.module id is stored in the code column.<\/p>\n
Some other extra codes for multi-instance opencart module are:<\/p>\n