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58 lines
1.9 KiB
58 lines
1.9 KiB
<?php
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use Illuminate\Support\Facades\Schema;
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use Illuminate\Database\Schema\Blueprint;
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use Illuminate\Database\Migrations\Migration;
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class CreateProposalsTable extends Migration
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{
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/**
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* Run the migrations.
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*
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* @return void
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*/
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public function up()
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{
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Schema::create('proposals', function (Blueprint $table) {
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$table->increments('id');
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$table->timestamps();
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// note that a revision may be shared by multiple tables, thus a proposal may also apply to different tables
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$table->unsignedInteger('table_id')->index(); // table this proposal was written for
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$table->unsignedInteger('revision_id')->index(); // parent revision (applying it to a different revisions may cause conflicts)
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$table->unsignedInteger('author_id')->index();
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$table->text('note')->nullable();
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$table->jsonb('changes'); // the actual meat of the changeset is stored here
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$table->foreign('revision_id')->references('id')->on('revisions')
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->onDelete('cascade'); // a proposal without the revision is useless
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// deleting the table must NOT delete the proposals, as they may be applicable to forks sharing the revision
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$table->foreign('table_id')->references('id')->on('tables')
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->onDelete('set null');
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// deleting author wipes their proposals
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$table->foreign('author_id')->references('id')->on('users')
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->onDelete('cascade');
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});
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// add FK to revisions to point to the source proposal
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Schema::table('revisions', function (Blueprint $table) {
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$table->foreign('proposal_id')->references('id')->on('proposals')
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->onDelete('set null');
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});
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}
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/**
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* Reverse the migrations.
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*
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* @return void
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*/
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public function down()
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{
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Schema::dropIfExists('proposals');
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}
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}
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