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95 lines
3.4 KiB
Markdown
95 lines
3.4 KiB
Markdown
The crud_generator application is designed to automatically generate source code files
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in golang language to perform CRUD operations.
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A completely ready-made microservice is created that can be launched immediately.
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For each table in the Postgres SQL database, functions will be automatic created to perform crud operations:
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- Create()
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- Read()
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- Update()
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- Delete() (or Delete() + Restore(), if there is an is_deleted field)
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- Save() - creating a new record when ID is empty, or updating a record when ID is not empty
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- ReadFromCache() - reading from cache or database
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- Update_ColumnName() - changing only one column with the name ColumnName,
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separate function for each column of each table
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- UpdateManyFields() - change several columns listed in an array
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- FindBy_ColumnName() - search for a record by one or more columns (if you fill in the findby_functions.json file)
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- FindMassBy_ColumnName() - search for multiple records by one or more columns (if you fill in the findmassby_functions.json file)
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files are generated:
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1. table - struct structure with all fields from the database, and gorm + json annotations
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Tables with fields in the database must be created manually in advance.
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The code generator will find all the tables and their fields in the database and use them.
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2. entities - struct structure, including table, with crud operations functions
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3. crud - files for performing crud operations, exchange with the database,
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as well as files with tests
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4. grpc server - files for performing crud operations over the network, using the GRPC protocol,
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as well as files with tests
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5. grpc client - client files for using GRPC by third-party services,
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as well as files with tests
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6. nrpc server - files for performing crud operations over the network, using the NRPC protocol (via the NATS message broker),
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as well as files with tests
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7. nrpc client - client files for use by NRPC third-party services,
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as well as files with tests
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8. crud_starter - a file with functions for switching to the desired protocol db or grpc or nrpc
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9. main.go and other .go files
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10. Makefile - script launch configuration file
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11. .env - file for filling in the microservice configuration (database connection parameters, etc.)
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Code templates are stored in the bin/templates folder.
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The code template is a .go file copied from the real project -
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so it’s easy to make a template (change it to your own) - just copy your file.
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The code generator replaces part of the code in the template with another code:
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- name of the database table
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- model name
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- adding and removing imports
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Installation procedure:
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1. Compile this repository
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>make build
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>
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the crud_generator file will appear in the bin folder
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2. Fill in the settings in the file bin/templates/configs_/settings.txt
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- connections to your database
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- the name of your new service
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- URL of your new service
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- and etc.
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3. Tables in the database must be created in advance, manually.
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4. Launch crud_generator
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A new folder with the name of your service will appear in the bin folder,
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with subfolders and finished files inside.
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5. Fill in the configuration parameters in the .env file
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Start microservice:
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>make run
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>
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P.S.
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I generated myself 420,000 lines of code, from 70 tables in the database, for my service.
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Source code in Golang language.
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Tested on Linux Ubuntu
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Readme from 11/14/2023
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Made by Alexander Nikitin
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https://github.com/ManyakRus/crud_generator
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