WIP - Initial conversation modal

Author: nikkanetiya

app/Conversation.php

@@ -0,0 +1,70 @@
+<?php
+
+namespace App;
+
+use Illuminate\Database\Eloquent\Model;
+
+class Conversation extends Model
+{
+ protected $fillable = [
+ 'created_by'
+ ];
+
+ /**
+ * @return \Illuminate\Database\Eloquent\Relations\BelongsToMany
+ */
+ public function users()
+ {
+ return $this->belongsToMany(User::class, 'conversation_user')
+ ->withTimestamps();
+ }
+
+ /**
+ * @return \Illuminate\Database\Eloquent\Relations\HasMany
+ */
+ public function messages()
+ {
+ return $this->hasMany(Message::class, 'conversation_id')
+ ->with('sender');
+ }
+
+ /**
+ * @return \Illuminate\Database\Eloquent\Relations\HasOne
+ */
+ public function last_message()
+ {
+ return $this->hasOne(Message::class)
+ ->orderBy('messages.id', 'desc')
+ ->with('sender');
+ }
+
+ /**
+ * @param $participants
+ *
+ * @return mixed
+ */
+ public static function start($participants)
+ {
+ $conversation = self::create([
+ 'created_by' => auth()->id()
+ ]);
+
+ if ($participants) {
+ $conversation->addParticipants($participants);
+ }
+
+ return $conversation;
+ }
+
+ /**
+ * @param $userIds
+ *
+ * @return $this
+ */
+ public function addParticipants($userIds)
+ {
+ $this->users()->attach(is_array($userIds) ? $userIds : [$userIds]);
+
+ return $this;
+ }
+}

app/ConversationUser.php

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+<?php
+
+namespace App;
+
+use Illuminate\Database\Eloquent\Model;
+
+class ConversationUser extends Model
+{
+ protected $table = 'conversation_user';
+
+ /**
+ * @return \Illuminate\Database\Eloquent\Relations\BelongsTo
+ */
+ public function conversation()
+ {
+ return $this->belongsTo(Conversation::class, 'conversation_id');
+ }
+}

app/Message.php

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+<?php
+
+namespace App;
+
+use Illuminate\Database\Eloquent\Model;
+
+class Message extends Model
+{
+ protected $fillable = [
+ 'body', 'user_id', 'type', 'is_seen'
+ ];
+
+ /**
+ * All of the relationships to be touched.
+ *
+ * @var array
+ */
+ protected $touches = ['conversation'];
+
+ protected $casts = [
+ 'is_seen' => 'boolean'
+ ];
+
+ /**
+ * @return \Illuminate\Database\Eloquent\Relations\BelongsTo
+ */
+ public function sender()
+ {
+ return $this->belongsTo(User::class);
+ }
+
+ /**
+ * @param $user
+ *
+ * @return mixed
+ */
+ public function unreadCount($user)
+ {
+ return Message::where('user_id', $user->id)
+ ->where('is_seen', 0)
+ ->count();
+ }
+
+ /**
+ * @return \Illuminate\Database\Eloquent\Relations\BelongsTo
+ */
+ public function conversation()
+ {
+ return $this->belongsTo(Conversation::class);
+ }
+}

database/migrations/2019_01_29_064116_create_messages_tables.php

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+<?php
+
+use Illuminate\Support\Facades\Schema;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Database\Migrations\Migration;
+
+class CreateMessagesTables extends Migration
+{
+ /**
+ * Run the migrations.
+ *
+ * @return void
+ */
+ public function up()
+ {
+ Schema::create('conversations', function (Blueprint $table) {
+ $table->increments('id');
+ $table->unsignedInteger('created_by')->nullable();
+ $table->timestamps();
+
+ $table->foreign('created_by')
+ ->references('id')
+ ->on('users')
+ ->onDelete('cascade');
+ });
+
+ Schema::create('messages', function (Blueprint $table) {
+ $table->increments('id');
+ $table->text('body');
+ $table->integer('conversation_id')->unsigned();
+ $table->integer('user_id')->unsigned();
+ $table->string('type')->default('text');
+ $table->boolean('is_seen')->default(false);
+ $table->timestamps();
+
+ $table->foreign('user_id')
+ ->references('id')
+ ->on('users')
+ ->onDelete('cascade');
+
+ $table->foreign('conversation_id')
+ ->references('id')
+ ->on('conversations')
+ ->onDelete('cascade');
+ });
+
+ Schema::create('conversation_user', function (Blueprint $table) {
+ $table->integer('user_id')->unsigned();
+ $table->integer('conversation_id')->unsigned();
+ $table->primary([
+ 'user_id', 'conversation_id'
+ ]);
+ $table->timestamps();
+
+ $table->foreign('conversation_id')
+ ->references('id')->on('conversations')
+ ->onDelete('cascade');
+
+ $table->foreign('user_id')
+ ->references('id')->on('users')
+ ->onDelete('cascade');
+ });
+ }
+
+ /**
+ * Reverse the migrations.
+ *
+ * @return void
+ */
+ public function down()
+ {
+ Schema::dropIfExists([
+ 'conversations', 'messages', 'conversation_user'
+ ]);
+ }
+}