orm

来源： https://stackoverflow.com/questions/10895173/how-do-i-join-tables-on-non-primary-key-columns

来源： https://stackoverflow.com/questions/39448066/laravel-eloquent-dynamically-defined-relationship

来源： https://stackoverflow.com/questions/39448066/laravel-eloquent-dynamically-defined-relationship

来源： https://stackoverflow.com/questions/39448066/laravel-eloquent-dynamically-defined-relationship

来源： https://stackoverflow.com/questions/32198962/h2-index-name-uniqueness

来源： https://stackoverflow.com/questions/63263087/whats-the-difference-between-orm-query-builder-library-connection-pool-size-and

来源： https://stackoverflow.com/questions/62433158/queryset-filtering-by-multiple-fk-attributes

来源： https://stackoverflow.com/questions/51986270/django-annotate-related-field

问题 I have 3 models: User, Project, UserProject: module.exports = function (sequelize, DataTypes) { var User = sequelize.define('User', { title: DataTypes.STRING, description: DataTypes.STRING }, { classMethods: { associate: function (models) { User.belongsToMany(models.Project, { through: 'UserProject', foreignKey: 'userId' }) } }, freezeTableName: true }) return User } module.exports = function (sequelize, DataTypes) { var Project = sequelize.define('Project', { title: DataTypes.STRING,

问题 I am trying to encrypt a column in my prostrgres DB. The column name is "test" of type "bytea". My enity code is below, @ColumnTransformer(read = "pgp_sym_decrypt(" + " test, " + " current_setting('encrypt.key')" + ")", write = "pgp_sym_encrypt( " + " ?, " + " current_setting('encrypt.key')" + ") ") @Column(columnDefinition = "bytea") private String test; postgresql.conf configuration file: encrypt.key = 'Wow! So much security. Placed the postgresql.conf configuration file in src/main