MySQL implements multi-language support function of ordering system

MySQL implements the multi-language support function of the ordering system and requires specific code examples

With the continuous development of globalization, the demand for multi-language applications is growing day by day. For ordering systems, multi-language support can improve user experience and expand service scope. As a powerful relational database management system, MySQL can easily implement the multi-language support function of the ordering system. This article will introduce in detail how to use MySQL to implement multi-language support for the ordering system and provide specific code examples.

1. Create a data table

First you need to create a data table to store multi-language information. You can create a data table named languages ​​that contains the following fields:

• id: The number of the language, type is integer.
• language: The name of the language, type is string.
• code: Language encoding, type is string.
• status: The status of the language, type is integer.

You can use the following SQL statement to create the languages ​​data table:

CREATE TABLE languages(
id INT AUTO_INCREMENT PRIMARY KEY,
language VARCHAR(50),
code VARCHAR(10),
status INT
);

2. Insert language information

Insert the language information that needs to be supported in the languages ​​data table. You can use the following SQL statement to insert language information:

INSERT INTO languages(language, code, status)
VALUES ('中文', 'zh-CN', 1);

INSERT INTO languages(language, code, status)
VALUES ('English', 'en-US', 1);

3. Modify the data table

When multi-language support is required In the data table, fields need to be added to store language-related information. Taking the menu table in the ordering system as an example, you can add a language_code field to the menu table to store the language code of the dishes. You can use the following SQL statement to modify the dish table:

ALTER TABLE dishes
ADD COLUMN language_code VARCHAR(10);

4. Use the multi-language function

when ordering In the system code, you can use MySQL's multi-language support function to dynamically switch languages. For example, on a menu page, displaying dish names needs to be translated according to the current language. You can use the following SQL statement to query the dish name:

SELECT
CASE language_code

WHEN 'zh-CN' THEN dishes.name_cn
WHEN 'en-US' THEN dishes.name_en
ELSE dishes.name

END AS dish_name
FROM dishes;

In this SQL statement, according to The value of the language_code field determines which field value is used as the dish name. If the language_code is 'zh-CN', the value of the name_cn field is used; if the language_code is 'en-US', the value of the name_en field is used; otherwise, the value of the name field is used. In this way, the dish name can be obtained dynamically based on the current language.

5. Switch language

In the ordering system, users can choose the language they are familiar with by switching the language function. The current language can be stored in a session or database in the user settings page.

For example, when the user clicks the Chinese button to switch to Chinese, the following SQL statement can be executed to update the current language to 'zh-CN':

UPDATE user_settings
SET language_code = 'zh -CN'
WHERE user_id = 1;

6. Summary

This article introduces how to use MySQL to implement the multi-language support function of the ordering system, and provides specific code examples. Multilingual support for the ordering system can be achieved by creating a data table to store language information, modifying the data table to add language-related fields, using the multilingual function to query information, and switching language functions. In this way, users can choose the language to use according to their own needs, improving user experience and service scope.

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