public takePicture(sourceType) {
        this.photosService.takePicture(sourceType)
            .then((newFileName) => {
                this.loading = this.loadingCtrl.create({
                    content: 'Ajout de la photo...',
                })
                this.loading.present()
                return this.photosService.upload(this.venue.id, newFileName)
            })
            .then((data: FileUploadResult) => {
                // stuff with data returned by server
                this.loading.dismissAll()
                this.resetVenuePhotoProfile()
                this.presentToast('Photo ajoutée')
            })
            .catch(err => {
                if (this.loading)
                    this.loading.dismissAll()
                this.presentToast(err)
            })
    }