Create some seed data, via json in a flat format that can be batch loaded
Seedlings will modify a json structure replacing any keys of the format {%type:id%}
Where
idis any string and the same string will produce the same resulting id in the final outputtypegroups theidfor example inincrementalmode the first of each type will reset to zero
Now lets create a new instance of seedlings to show what that all means. Here we'll be using the incremental id generator
Notice in the below the change of type will reset the index to zero ({%posts:1%} and {%users:1%})
var seedlings = require("seedlings");
var seeder = seedlings(require("seedlings/generators/incremental"));
var out1 = seeder([
{
"id": "{%users:1%}",
"name": "Bob"
},
{
"id": "{%users:2%}",
"name": "Jane"
}
]);
assert.deepEqual(out1, [
{
"id": 1,
"name": "Bob"
},
{
"id": 2,
"name": "Jane"
}
]);
var out2 = seeder([
{
"id": "{%posts:1%}",
"owner": "{%users:1%}",
"title": "Hello World",
"content": "Hi everyone!"
}
]);
assert.deepEqual(out2, [
{
"id": 1,
"owner": 1,
"title": "Hello World",
"content": "Hi everyone!"
}
]);Create a new instance with
var seeder = seedlings(/* [id_generator_function] */);Where id_generator_function is one of
seedlings/generator/incremental(default)seedlings/generator/uuid
Both incremental and uuid will product the same output given the same input. Below is an example using the uuid generator
var seeder = seedlings(require("seedlings/generators/uuid"))
var outUUID = seeder([
{id: "{%test:uuid%}"}
])
assert.deepEqual(outUUID, [
{id: "01010101-0101-4101-8101-010101010101"}
]);