- #Dev seed spacenet how to#
- #Dev seed spacenet manual#
- #Dev seed spacenet code#
- #Dev seed spacenet series#
While del() will remove all the existing records, truncate() will also reset the primary key, so the table will be brought back to its pristine state.įinally, we need to add objects that represent data in the correct format for our specific table. The Knex template uses the del() method, but in general it's better to use the truncate() method instead. The second thing we need to change is the method that deletes data from the table. market-related Institutions and project developers, investors and. The first thing we need to replace is table_name with the actual name of the table we want to operate on, in our case fruits. Thats why we at Good Energies Foundation are seed-funding the Climate Smart Forest.
#Dev seed spacenet code#
The templated code generated by Knex provides some placeholders that we need to replace before running the seed. In a seed file we don't need up and down methods like in a migration, because seeds are just meant to add data to the table, not remove it. Knex needs to know where seed files live, so we need to first configure knexfile.js by adding a new property called seeds that specifies the seed directory:Įxports. We almost always need sample data while building and deploying the application to make sure our database is configured properly.įiles that contain data for pre-populating our database are called seed files. Testing is a huge subject and we won't go into much detail here, but typically tests need to run with some set of pre-defined data to make sure the application logic is correct.Īnother instance is for configuring the application in development. One instance is during the testing phase. There are a couple of instances while developing our application, where we may want to work with live data. This operation is called seeding the database. Knex can be of help in pre-populating the database programmatically with actual data, so we don't have to do it manually every time we set up a new database. Migrations operate on the database schema itself, but what about the actual data?
#Dev seed spacenet how to#
We have also seen how to modify tables, add a column, and rollback migrations.
#Dev seed spacenet series#
In previous articles in this series we have used Knex migrations to create a database and to add tables and columns to it. Path: C:\SnDev2005\SpaceNet\dev\SimSupport\SonOfSpre\Database\C2_Unknown_Sat\_AAF5.Why and how to seed a database in a REST API application Path: C:\SnDev2005\SpaceNet\dev\SimSupport\SonOfSpre\Database\C2_Unknown_Sat\C2_Unknown_Sat_his.stab Path: C:\SnDev2005\SpaceNet\dev\SimSupport\SonOfSpre\Database\C2_Unknown_Sat\C2_Unknown_Sat.stab Window Title: C2_Unknown_Sat.stab, C2_Unknown_Sat_his.stab - SourceGear DiffMerge SourceGear DiffMerge : Version 3.1.0 (15888) : WXMSW Īrgv: C:\Program Files\SourceGear\DiffMerge\DiffMerge.exeĪrgv: C:\SnDev2005\SpaceNet\dev\SimSupport\SonOfSpre\Database\C2_Unknown_Sat\C2_Unknown_Sat.stabĪrgv: C:\SnDev2005\SpaceNet\dev\SimSupport\SonOfSpre\Database\C2_Unknown_Sat\C2_Unknown_Sat_his.stab
#Dev seed spacenet manual#
A manual merge point should force the 2 selected records to match against each other. Problem #2) When a Manual Merge point is entered by selecting 2 records with exact matching measurement times, sometimes DiffMerge will match those 2 records with each other, but about 30% of the time, it will match one of the selected records with a record about 1 to 3 lines down from the other selected record. I would like to be able to enter several of them at once, then click an APPLY button. At 2 minutes each, it takes 2 hours to enter them. Problem #1) I have to enter about 50 manual merge points. When I click the INSERT button, it takes a couple of minutes before the hour glass goes away and I get control back. I am therefore trying to insert a Manual Merge to re-sync the diff. When the gap is encountered, DiffMerge starts to compare records that are not to be compared with each other. The smaller file is from a run that for some reason (the reason is what I am searching for) is occasionally skipping about an hours worth of measurements.
The 3rd column in most of the reports is the measurement time and it is that column that must match in order for 2 records to be considered to be the same record. The reports vary in width from about 60 columns to about 150 columns, but the width within a given report is fixed. The files consist of a series of column formatted reports with page titles. They are reports from running a simulation. I'm using DiffMerge to view the differences in 2 moderate size files (one is 7000 lines, the other version is 5700 lines).
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