Filling associated model within hook
I am very fresh in ORM's and still trying to solve some old database scenarios with it.
Actually, I tried to simulate a trigger with hooks, and now I am facing the following trouble:
When a character is created, automatically a new attributes are created for it.
My last try was to recreate the character model inside the hook, but I already tried to append the attributes val, but both resulted in a new character row without the respective attributes.
Character attribute model.
const tbl_cha_att_val = sequelize.define('tbl_cha_att_val', {
cha_att_val_idf: {
type: DataTypes.UUID,
allowNull: false,
primaryKey: true,
defaultValue: DataTypes.UUIDV4
},
cha_att_val: {
type: DataTypes.INTEGER(11),
allowNull: false
}
}, {
tableName: 'tbl_cha_att_val'
});
tbl_cha_att_val.associate = models => {
models.tbl_cha_att.hasOne(tbl_cha_att_val, {
foreignKey: {name: 'cha_att_val_cha_att', allowNull: false},
onDelete: 'CASCADE'
});
tbl_cha_att_val.belongsTo(models.tbl_cha, {
foreignKey: {name: 'cha_att_val_cha', allowNull: false},
onDelete: 'CASCADE'
})
};
Character model.
const tbl_cha = sequelize.define('tbl_cha', {
cha_idf: {
type: DataTypes.UUID,
allowNull: false,
primaryKey: true,
defaultValue: DataTypes.UUIDV4
},
cha_nme: {
type: DataTypes.STRING(64),
allowNull: false,
unique: true
},
}, {
tableName: 'tbl_cha',
hooks: {
beforeCreate: function(model, options) {
return new Promise((resolve, reject) => {
let nOptions = {};
nOptions.include = [{
model: 'tbl_cha_att_val',
required: false,
useMaster: true
}];
let nValues = model.dataValues;
nValues.tbl_cha_att_vals = [{
cha_att_val: 1
}];
let nModel = sequelize.model('tbl_cha').build(
nValues,
model.nOptions
);
resolve(nModel);
});
}
}
});
tbl_cha.associate = models => {
tbl_cha.hasMany(models.tbl_cha_att_val, {
foreignKey: {name: 'cha_att_val_cha', allowNull: false},
onDelete: 'CASCADE'
});
};
sequelize.js
New contributor
add a comment |
I am very fresh in ORM's and still trying to solve some old database scenarios with it.
Actually, I tried to simulate a trigger with hooks, and now I am facing the following trouble:
When a character is created, automatically a new attributes are created for it.
My last try was to recreate the character model inside the hook, but I already tried to append the attributes val, but both resulted in a new character row without the respective attributes.
Character attribute model.
const tbl_cha_att_val = sequelize.define('tbl_cha_att_val', {
cha_att_val_idf: {
type: DataTypes.UUID,
allowNull: false,
primaryKey: true,
defaultValue: DataTypes.UUIDV4
},
cha_att_val: {
type: DataTypes.INTEGER(11),
allowNull: false
}
}, {
tableName: 'tbl_cha_att_val'
});
tbl_cha_att_val.associate = models => {
models.tbl_cha_att.hasOne(tbl_cha_att_val, {
foreignKey: {name: 'cha_att_val_cha_att', allowNull: false},
onDelete: 'CASCADE'
});
tbl_cha_att_val.belongsTo(models.tbl_cha, {
foreignKey: {name: 'cha_att_val_cha', allowNull: false},
onDelete: 'CASCADE'
})
};
Character model.
const tbl_cha = sequelize.define('tbl_cha', {
cha_idf: {
type: DataTypes.UUID,
allowNull: false,
primaryKey: true,
defaultValue: DataTypes.UUIDV4
},
cha_nme: {
type: DataTypes.STRING(64),
allowNull: false,
unique: true
},
}, {
tableName: 'tbl_cha',
hooks: {
beforeCreate: function(model, options) {
return new Promise((resolve, reject) => {
let nOptions = {};
nOptions.include = [{
model: 'tbl_cha_att_val',
required: false,
useMaster: true
}];
let nValues = model.dataValues;
nValues.tbl_cha_att_vals = [{
cha_att_val: 1
}];
let nModel = sequelize.model('tbl_cha').build(
nValues,
model.nOptions
);
resolve(nModel);
});
}
}
});
tbl_cha.associate = models => {
tbl_cha.hasMany(models.tbl_cha_att_val, {
foreignKey: {name: 'cha_att_val_cha', allowNull: false},
onDelete: 'CASCADE'
});
};
sequelize.js
New contributor
add a comment |
I am very fresh in ORM's and still trying to solve some old database scenarios with it.
Actually, I tried to simulate a trigger with hooks, and now I am facing the following trouble:
When a character is created, automatically a new attributes are created for it.
My last try was to recreate the character model inside the hook, but I already tried to append the attributes val, but both resulted in a new character row without the respective attributes.
Character attribute model.
const tbl_cha_att_val = sequelize.define('tbl_cha_att_val', {
cha_att_val_idf: {
type: DataTypes.UUID,
allowNull: false,
primaryKey: true,
defaultValue: DataTypes.UUIDV4
},
cha_att_val: {
type: DataTypes.INTEGER(11),
allowNull: false
}
}, {
tableName: 'tbl_cha_att_val'
});
tbl_cha_att_val.associate = models => {
models.tbl_cha_att.hasOne(tbl_cha_att_val, {
foreignKey: {name: 'cha_att_val_cha_att', allowNull: false},
onDelete: 'CASCADE'
});
tbl_cha_att_val.belongsTo(models.tbl_cha, {
foreignKey: {name: 'cha_att_val_cha', allowNull: false},
onDelete: 'CASCADE'
})
};
Character model.
const tbl_cha = sequelize.define('tbl_cha', {
cha_idf: {
type: DataTypes.UUID,
allowNull: false,
primaryKey: true,
defaultValue: DataTypes.UUIDV4
},
cha_nme: {
type: DataTypes.STRING(64),
allowNull: false,
unique: true
},
}, {
tableName: 'tbl_cha',
hooks: {
beforeCreate: function(model, options) {
return new Promise((resolve, reject) => {
let nOptions = {};
nOptions.include = [{
model: 'tbl_cha_att_val',
required: false,
useMaster: true
}];
let nValues = model.dataValues;
nValues.tbl_cha_att_vals = [{
cha_att_val: 1
}];
let nModel = sequelize.model('tbl_cha').build(
nValues,
model.nOptions
);
resolve(nModel);
});
}
}
});
tbl_cha.associate = models => {
tbl_cha.hasMany(models.tbl_cha_att_val, {
foreignKey: {name: 'cha_att_val_cha', allowNull: false},
onDelete: 'CASCADE'
});
};
sequelize.js
New contributor
I am very fresh in ORM's and still trying to solve some old database scenarios with it.
Actually, I tried to simulate a trigger with hooks, and now I am facing the following trouble:
When a character is created, automatically a new attributes are created for it.
My last try was to recreate the character model inside the hook, but I already tried to append the attributes val, but both resulted in a new character row without the respective attributes.
Character attribute model.
const tbl_cha_att_val = sequelize.define('tbl_cha_att_val', {
cha_att_val_idf: {
type: DataTypes.UUID,
allowNull: false,
primaryKey: true,
defaultValue: DataTypes.UUIDV4
},
cha_att_val: {
type: DataTypes.INTEGER(11),
allowNull: false
}
}, {
tableName: 'tbl_cha_att_val'
});
tbl_cha_att_val.associate = models => {
models.tbl_cha_att.hasOne(tbl_cha_att_val, {
foreignKey: {name: 'cha_att_val_cha_att', allowNull: false},
onDelete: 'CASCADE'
});
tbl_cha_att_val.belongsTo(models.tbl_cha, {
foreignKey: {name: 'cha_att_val_cha', allowNull: false},
onDelete: 'CASCADE'
})
};
Character model.
const tbl_cha = sequelize.define('tbl_cha', {
cha_idf: {
type: DataTypes.UUID,
allowNull: false,
primaryKey: true,
defaultValue: DataTypes.UUIDV4
},
cha_nme: {
type: DataTypes.STRING(64),
allowNull: false,
unique: true
},
}, {
tableName: 'tbl_cha',
hooks: {
beforeCreate: function(model, options) {
return new Promise((resolve, reject) => {
let nOptions = {};
nOptions.include = [{
model: 'tbl_cha_att_val',
required: false,
useMaster: true
}];
let nValues = model.dataValues;
nValues.tbl_cha_att_vals = [{
cha_att_val: 1
}];
let nModel = sequelize.model('tbl_cha').build(
nValues,
model.nOptions
);
resolve(nModel);
});
}
}
});
tbl_cha.associate = models => {
tbl_cha.hasMany(models.tbl_cha_att_val, {
foreignKey: {name: 'cha_att_val_cha', allowNull: false},
onDelete: 'CASCADE'
});
};
sequelize.js
sequelize.js
New contributor
New contributor
edited 2 days ago
PrakashG
470514
470514
New contributor
asked 2 days ago
MPastoreMPastore
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