Starting auto-creation of database
parent
e1baee2fd3
commit
b6104dfdbd
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@ -34,7 +34,7 @@ type columsDefinition struct {
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Type string
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Default any
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IsNullable bool
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Extra string
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AutoIncrement bool
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Charset any
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Collation any
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Table string
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@ -63,69 +63,256 @@ type tableDefinition struct {
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}
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type databaseDefinition struct {
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Name string
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Tables []tableDefinition
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Indexes []indexDefinition
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ForeignKeys []foreignKeyDefinition
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}
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var listTables = []tableDefinition{
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var databaseStructure databaseDefinition = databaseDefinition{
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Tables: []tableDefinition{
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{
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Name: "users",
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Name: "user",
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Columns: []columsDefinition{
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{
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Name: "id",
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Type: "int(11)",
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Default: nil,
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IsNullable: false,
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Extra: "AUTO_INCREMENT",
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AutoIncrement: true,
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},
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{
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Name: "name",
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Type: "varchar(256)",
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Default: nil,
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IsNullable: false,
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Extra: "",
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Charset: "utf8mb4",
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Collation: "utf8mb4_unicode_ci",
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},
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{
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Name: "password",
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Type: "varchar(256)",
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Default: nil,
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IsNullable: false,
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Extra: "",
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Charset: "utf8mb4",
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Collation: "utf8mb4_unicode",
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Collation: "utf8mb4_bin",
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},
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{
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Name: "password-salt",
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Name: "password_salt",
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Type: "varchar(256)",
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Default: nil,
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IsNullable: false,
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Extra: "",
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Charset: "utf8mb4",
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Collation: "utf8mb4_unicode",
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Collation: "utf8mb4_bin",
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},
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{
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Name: "permission_level",
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Type: "enum('ADMIN', 'MODERATOR', 'USER')",
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Default: "USER",
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Default: "'USER'",
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IsNullable: false,
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Extra: "",
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Charset: nil,
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},
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{
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Name: "email",
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Type: "varchar(256)",
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Default: nil,
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IsNullable: true,
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Extra: "",
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Default: "NULL",
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Charset: "utf8mb4",
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Collation: "utf8mb4_unicode",
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Collation: "utf8mb4_bin",
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},
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},
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},
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{
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Name: "folder",
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Columns: []columsDefinition{
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{
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Name: "id",
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Type: "int(11)",
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IsNullable: false,
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AutoIncrement: true,
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},
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{
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Name: "name",
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Type: "varchar(64)",
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IsNullable: false,
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Charset: "utf8mb4",
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Collation: "utf8mb4_unicode_ci",
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},
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},
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},
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{
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Name: "tag",
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Columns: []columsDefinition{
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{
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Name: "id",
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Type: "int(11)",
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IsNullable: false,
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AutoIncrement: true,
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},
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{
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Name: "name",
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Type: "varchar(64)",
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IsNullable: false,
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Charset: "utf8mb4",
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Collation: "utf8mb4_unicode_ci",
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},
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},
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},
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{
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Name: "website",
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Columns: []columsDefinition{
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{
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Name: "id",
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Type: "int(11)",
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IsNullable: false,
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AutoIncrement: true,
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},
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{
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Name: "name",
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Type: "varchar(256)",
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IsNullable: false,
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Charset: "utf8mb4",
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Collation: "utf8mb4_unicode_ci",
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},
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{
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Name: "content",
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Type: "longtext",
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IsNullable: true,
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Default: "NULL",
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Charset: "utf8mb4",
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Collation: "utf8mb4_bin",
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},
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{
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Name: "description",
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Type: "longtext",
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IsNullable: true,
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Default: "NULL",
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Charset: "utf8mb4",
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Collation: "utf8mb4_bin",
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},
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{
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Name: "folder_id",
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Type: "int(11)",
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IsNullable: false,
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},
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{
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Name: "date",
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Type: "datetime",
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IsNullable: false,
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Default: "current_timestamp()",
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},
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{
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Name: "title",
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Type: "varchar(256)",
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IsNullable: false,
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Charset: "utf8mb4",
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Collation: "utf8mb4_unicode_ci",
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},
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},
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},
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{
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Name: "tags_websites",
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Columns: []columsDefinition{
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{
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Name: "tag_id",
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Type: "int(10)",
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IsNullable: false,
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},
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{
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Name: "website_id",
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Type: "int(10)",
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IsNullable: false,
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},
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{
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Name: "value",
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Type: "varchar(64)",
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IsNullable: false,
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Charset: "utf8mb4",
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Collation: "utf8mb4_unicode_ci",
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},
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},
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},
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},
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Indexes: []indexDefinition{
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// PRIMARY KEYS
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/*
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{
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Name: "",
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Type: database_ENUM_INDEX_PRIMARY,
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Table: "user",
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Columns: []string{
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"id",
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},
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},
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{
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Name: "",
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Type: database_ENUM_INDEX_PRIMARY,
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Table: "folder",
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Columns: []string{
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"id",
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},
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},
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{
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Name: "",
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Type: database_ENUM_INDEX_PRIMARY,
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Table: "tag",
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Columns: []string{
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"id",
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},
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},
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{
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Name: "",
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Type: database_ENUM_INDEX_PRIMARY,
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Table: "website",
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Columns: []string{
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"id",
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},
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},
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{
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Name: "",
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Type: database_ENUM_INDEX_PRIMARY,
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Table: "tags_websites",
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Columns: []string{
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"tag_id",
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"website_id",
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},
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},
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*/
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// UNIQUE KEYS
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{
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Name: "UNIQUE_user_name",
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Type: database_ENUM_INDEX_UNIQUE,
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Table: "user",
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Columns: []string{
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"name",
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},
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},
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{
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Name: "UNIQUE_website_name_folder",
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Type: database_ENUM_INDEX_UNIQUE,
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Table: "website",
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Columns: []string{
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"name",
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"folder_id",
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},
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},
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},
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ForeignKeys: []foreignKeyDefinition{
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{
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Name: "FK_tags_websites__tag_id",
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Table: "tags_websites",
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ColumnName: "tag_id",
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PointingToTable: "tag",
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PointingToColumn: "id",
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UpdateRule: "CASCADE",
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DeleteRule: "CASCADE",
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},
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{
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Name: "FK_tags_websites__website_id",
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Table: "tags_websites",
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ColumnName: "website_id",
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PointingToTable: "website",
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PointingToColumn: "id",
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UpdateRule: "CASCADE",
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DeleteRule: "CASCADE",
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},
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},
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}
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var dbPath string
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@ -146,6 +333,8 @@ func Init() {
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profiler.Register(profiler_DATABASE_QUERY, 4000, "µs")
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isInit = true
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destroyDatabase()
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updateDatabaseStructure()
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initDatabaseStructure()
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}
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@ -247,13 +436,47 @@ func executeQuery(query string, args ...any) *sql.Rows {
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profiler.Add(profiler_DATABASE_QUERY, time.Duration(time.Since(tStart).Microseconds()))
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if err != nil {
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log.Printf("Cannot query the database ! (Query : %s) with args ", query)
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log.Fatalln(args...)
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log.Printf("Cannot query the database ! Query : %s", query)
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log.Fatalln("With args :", args)
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}
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return rows
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}
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func executeExec(query string, args ...any) sql.Result {
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if !isInit {
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return nil
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}
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if db == nil {
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connect()
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}
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var err error
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var result sql.Result
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tStart := time.Now()
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for i := range dbConfig.RetriesOnError {
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result, err = db.Exec(query, args...)
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if err == nil {
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break
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}
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log.Printf("Error while executing on the database [%d/%d] : %s\n", i+1, dbConfig.RetriesOnError, err)
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if i+1 == dbConfig.RetriesOnError {
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break
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}
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time.Sleep((time.Duration)(dbConfig.TimeBetweenRetriesMs) * time.Millisecond)
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ping()
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}
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profiler.Add(profiler_DATABASE_QUERY, time.Duration(time.Since(tStart).Microseconds()))
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if err != nil {
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log.Printf("Cannot execute on the database ! Command : %s", query)
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log.Fatalln("With args : ", args)
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}
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return result
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}
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func fetchStoredRoutines() {
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storedRoutines = nil
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var rows *sql.Rows = executeQuery("SELECT ROUTINE_NAME, ROUTINE_TYPE FROM information_schema.ROUTINES WHERE ROUTINE_SCHEMA=?;", dbConfig.Database)
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@ -318,7 +541,8 @@ func callStoredFunction(name string, args ...any) {
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}
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func fetchTables() []string {
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var rows *sql.Rows = executeQuery("SELECT TABLE_NAME FROM information_schema.TABLES WHERE TABLE_SCHEMA=?;", dbConfig.Database)
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var rows *sql.Rows = executeQuery("SHOW TABLES;")
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//var rows *sql.Rows = executeQuery("SELECT TABLE_NAME FROM information_schema.TABLES WHERE TABLE_SCHEMA=?;", dbConfig.Database)
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var tables []string = make([]string, 0)
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if rows != nil {
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defer rows.Close()
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@ -332,19 +556,18 @@ func fetchTables() []string {
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}
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func fetchColumns(table string) []columsDefinition {
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var rows *sql.Rows = executeQuery("SELECT COLUMN_NAME, COLUMN_TYPE, COLUMN_DEFAULT, IS_NULLABLE, EXTRA, CHARACTER_SET_NAME, COLLATION_NAME FROM information_schema.COLUMNS WHERE TABLE_SCHEMA=? AND TABLE_NAME=?;", dbConfig.Database, table)
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var rows *sql.Rows = executeQuery("SELECT COLUMN_NAME, COLUMN_TYPE, COLUMN_DEFAULT, IS_NULLABLE, CHARACTER_SET_NAME, COLLATION_NAME FROM information_schema.COLUMNS WHERE TABLE_SCHEMA=? AND TABLE_NAME=?;", dbConfig.Database, table)
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var columns []columsDefinition = make([]columsDefinition, 0)
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if rows != nil {
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defer rows.Close()
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for rows.Next() {
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var resName, resType, resDefault, resNullable, resExtra, resCharset, resCollation string
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rows.Scan(&resName, &resType, &resDefault, &resNullable, &resExtra, &resCharset, &resCollation)
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var resName, resType, resDefault, resNullable, resCharset, resCollation string
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rows.Scan(&resName, &resType, &resDefault, &resNullable, &resCharset, &resCollation)
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columns = append(columns, columsDefinition{
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Name: resName,
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Type: resType,
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Default: resDefault,
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IsNullable: resNullable == "YES",
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Extra: resExtra,
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Charset: resCharset,
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Collation: resCollation,
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Table: table,
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@ -421,8 +644,8 @@ func initDatabaseStructure() {
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var columns []columsDefinition = fetchColumns(tables[i])
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log.Printf(" - Table %s : \n", tables[i])
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for j := range columns {
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log.Printf(" - Column %s %s IsNullable:%t Default:%s Extra:%s Charset:%s/%s\n",
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columns[j].Name, columns[j].Type, columns[j].IsNullable, columns[j].Default, columns[j].Extra, columns[j].Charset, columns[j].Collation)
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log.Printf(" - Column %s %s IsNullable:%t Default:%s Charset:%s/%s\n",
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columns[j].Name, columns[j].Type, columns[j].IsNullable, columns[j].Default, columns[j].Charset, columns[j].Collation)
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}
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}
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@ -438,3 +661,119 @@ func initDatabaseStructure() {
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log.Printf(" - Foreign key %s\n", foreignKeys[i])
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}
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}
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func updateDatabaseStructure() {
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var tablesNeeded []tableDefinition = databaseStructure.Tables
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for t := range tablesNeeded {
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var table tableDefinition = tablesNeeded[t]
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var columnsNeeded []columsDefinition = table.Columns
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executeExec(fmt.Sprintf("DROP TABLE IF EXISTS %s;", table.Name))
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var query string = fmt.Sprintf("CREATE TABLE %s (\n", table.Name)
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for c := range columnsNeeded {
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if c != 0 {
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query += ",\n"
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}
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var column columsDefinition = columnsNeeded[c]
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query += fmt.Sprintf("%s %s", column.Name, column.Type)
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str, ok := column.Charset.(string)
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if ok {
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query += fmt.Sprintf(" CHARACTER SET %s", str)
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}
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str, ok = column.Collation.(string)
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if ok {
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query += fmt.Sprintf(" COLLATE %s", str)
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}
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if !column.IsNullable {
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query += " NOT NULL"
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}
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str, ok = column.Default.(string)
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if ok {
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query += fmt.Sprintf(" DEFAULT %s", str)
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}
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}
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query += "\n);"
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fmt.Println(query)
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executeExec(query)
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}
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var indexesNeeded []indexDefinition = databaseStructure.Indexes
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for i := range indexesNeeded {
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var index indexDefinition = indexesNeeded[i]
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// ALTER TABLE <table> ADD CONSTRAINT PRIMARY KEY(<columns>);
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// ALTER TABLE <table> ADD CONSTRAINT <constraint_name> UNIQUE(<columns>);
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var command string = fmt.Sprintf("ALTER TABLE %s ADD CONSTRAINT ", index.Table)
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switch index.Type {
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case database_ENUM_INDEX_PRIMARY:
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command += "PRIMARY KEY("
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case database_ENUM_INDEX_UNIQUE:
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command += fmt.Sprintf(" %s UNIQUE(", index.Name)
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}
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for c := range index.Columns {
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if c != 0 {
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command += ", "
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}
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var column string = index.Columns[c]
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command += column
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}
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command += ");"
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fmt.Println(command)
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executeExec(command)
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}
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var foreignKeys []foreignKeyDefinition = databaseStructure.ForeignKeys
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for fk := range foreignKeys {
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var foreignKey foreignKeyDefinition = foreignKeys[fk]
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// ALTER TABLE <table> ADD CONSTRAINT <constraint_name> FOREIGN KEY(<column>) REFERENCES <ref_table>(<ref_column>) ON DELETE <CASCADE / SET NULL> UPDATE <CASCADE / SET NULL>;
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var command string = fmt.Sprintf("ALTER TABLE %s ADD INDEX %s(%s);", foreignKey.PointingToTable, foreignKey.Name, foreignKey.PointingToColumn)
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fmt.Println(command)
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executeExec(command)
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command = fmt.Sprintf("ALTER TABLE %s ADD CONSTRAINT %s FOREIGN KEY (%s) REFERENCES %s (%s)", foreignKey.Table, foreignKey.Name, foreignKey.ColumnName, foreignKey.PointingToTable, foreignKey.PointingToColumn)
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if foreignKey.DeleteRule != "" {
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command += fmt.Sprintf(" ON DELETE %s", foreignKey.DeleteRule)
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}
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if foreignKey.UpdateRule != "" {
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command += fmt.Sprintf(" ON UPDATE %s", foreignKey.UpdateRule)
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}
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command += ";"
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fmt.Println(command)
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executeExec(command)
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}
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}
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func destroyDatabase() {
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var tables []string = fetchTables()
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var foreignKeys []foreignKeyDefinition = fetchForeignKeys()
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for fk := range foreignKeys {
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var foreignKey foreignKeyDefinition = foreignKeys[fk]
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var command string = fmt.Sprintf("ALTER TABLE %s DROP FOREIGN KEY %s;", foreignKey.Table, foreignKey.Name)
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fmt.Println(command)
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executeExec(command)
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}
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for t := range tables {
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var table string = tables[t]
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var command string = fmt.Sprintf("DROP TABLE %s;", table)
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fmt.Println(command)
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executeExec(command)
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}
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}
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